180 relations: Adenoid, Adrenal gland, Anatomy, Animal, Anus, Applied ontology, Aristotle, Artificial organ, Asexual reproduction, Augur, Bacteria, Biological system, Biology, Bird, Blog, Blood, Blood vessel, Body cavity, Bone, Brain, Breathing, Bronchus, Cardiac muscle, Cartilage, Cell (biology), Circulatory system, Classical planet, Clonal colony, Conifer cone, Connective tissue, Convergent evolution, Digestion, Discover (magazine), Disease, Electrolyte, Electron microscope, Embryology, Endocrine gland, Endocrine system, Epistemology, Esophagus, Excretory system, Extracellular matrix, Fallopian tube, Feather, Fish, Flatworm, Flower, Flowering plant, Fruit, ..., Gallbladder, Gastrointestinal tract, Germ layer, Graft-versus-host disease, Gynoecium, Hair, Haruspex, Heart, Hermetic Qabalah, Histology, Histopathology, Hormone, Human body, Human digestive system, Human musculoskeletal system, Human skeleton, Hypothalamus, Immune system, Immunofluorescence, Immunosuppression, Information science, Integumentary system, Kidney, Knowledge representation and reasoning, Large intestine, Larynx, Leaf, Ligament, Liver, Lung, Lycopodiophyta, Lymph, Lymph node, Lymphatic system, Lymphatic vessel, Medical diagnosis, Mesentery, Microscope, Microscopy, Microtome, Moss, Muscle, Muscular system, Nail (anatomy), Natural language, Neologism, Nerve, Nervous system, Nervous tissue, Neuroendocrinology, Ontology, Ontology (information science), Ontology engineering, Organ donation, Organ system, Organ transplantation, Organelle, Organism, Organoid, Organon, Ovary, Pancreas, Paracelsus, Parathyroid gland, Parenchyma, Penis, Pharynx, Photosynthesis, Phylum, Pineal gland, Pinophyta, Pituitary gland, Placentation, Plant, Plant anatomy, Plant morphology, Plant reproductive morphology, Plant stem, Priest, Prognosis, Prostate, Radiata, Rectum, Reproductive system, Reptile, Respiratory system, Rome, Root, Salivary gland, Scale (anatomy), Science journalism, Seed, Seminal vesicle, Sex organ, Skeleton, Skin, Spinal cord, Splanchnic, Spleen, Sponge, Staining, Stamen, Stomach, Strobilus, Stroma (tissue), Taxon, Taxonomy (general), Taxonomy for search engines, Tendon, Testicle, Thoracic diaphragm, Thymus, Thyroid, Tissue (biology), Tissue engineering, Tonsil, Trachea, Transplant rejection, Trichoplax, Unicellular organism, Ureter, Urethra, Urinary bladder, Urine, Uterus, Vagina, Vas deferens, Vegetative reproduction, Vulva, White blood cell. Expand index (130 more) » « Shrink index
The adenoid, also known as a pharyngeal tonsil or nasopharyngeal tonsil, is the superior-most of the tonsils.
The adrenal glands (also known as suprarenal glands) are endocrine glands that produce a variety of hormones including adrenaline and the steroids aldosterone and cortisol.
Anatomy (Greek anatomē, “dissection”) is the branch of biology concerned with the study of the structure of organisms and their parts.
Animals are multicellular eukaryotic organisms that form the biological kingdom Animalia.
The anus (from Latin anus meaning "ring", "circle") is an opening at the opposite end of an animal's digestive tract from the mouth.
Applied ontology involves the practical application of ontological resources to specific domains, such as management, relationships, biomedicine or geography.
Aristotle (Ἀριστοτέλης Aristotélēs,; 384–322 BC) was an ancient Greek philosopher and scientist born in the city of Stagira, Chalkidiki, in the north of Classical Greece.
An artificial organ is an engineered device or tissue that is implanted or integrated into a human — interfacing with living tissue — to replace a natural organ, to duplicate or augment a specific function or functions so the patient may return to a normal life as soon as possible.
Asexual reproduction is a type of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only; it does not involve the fusion of gametes, and almost never changes the number of chromosomes.
An augur was a priest and official in the classical Roman world.
Bacteria (common noun bacteria, singular bacterium) is a type of biological cell.
A biological system is a complex network of biologically relevant entities.
Biology is the natural science that studies life and living organisms, including their physical structure, chemical composition, function, development and evolution.
Birds, also known as Aves, are a group of endothermic vertebrates, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.
A blog (a truncation of the expression "weblog") is a discussion or informational website published on the World Wide Web consisting of discrete, often informal diary-style text entries ("posts").
Blood is a body fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells.
The blood vessels are the part of the circulatory system, and microcirculation, that transports blood throughout the human body.
A body cavity is any fluid-filled space in a multicellular organism other than those of vessels (such as blood vessels and lymph vessels).
A bone is a rigid organ that constitutes part of the vertebrate skeleton.
The brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals.
Breathing (or respiration, or ventilation) is the process of moving air into and out of the lungs to facilitate gas exchange with the internal environment, mostly by bringing in oxygen and flushing out carbon dioxide.
A bronchus, is a passage of airway in the respiratory system that conducts air into the lungs.
Cardiac muscle (heart muscle) is one of the three major types of muscle, the others being skeletal and smooth muscle.
Cartilage is a resilient and smooth elastic tissue, a rubber-like padding that covers and protects the ends of long bones at the joints, and is a structural component of the rib cage, the ear, the nose, the bronchial tubes, the intervertebral discs, and many other body components.
The cell (from Latin cella, meaning "small room") is the basic structural, functional, and biological unit of all known living organisms.
Christmas is an annual festival commemorating the birth of Jesus Christ,Martindale, Cyril Charles.
The Christmas season, also called the festive season, or the holiday season (mainly in the U.S. and Canada; often simply called the holidays),, is an annually recurring period recognized in many Western and Western-influenced countries that is generally considered to run from late November to early January.
Christmas Eve is the evening or entire day before Christmas Day, the festival commemorating the birth of Jesus.
Christmas traditions vary from country to country.
The circulatory system, also called the cardiovascular system or the vascular system, is an organ system that permits blood to circulate and transport nutrients (such as amino acids and electrolytes), oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases, stabilize temperature and pH, and maintain homeostasis.
In classical antiquity, the seven classical planets are the seven non-fixed astronomical objects in the sky visible to the naked eye: Mars, Jupiter, Venus, Saturn, Mercury, the Sun, and the Moon.
A clonal colony or genet is a group of genetically identical individuals, such as plants, fungi, or bacteria, that have grown in a given location, all originating vegetatively, not sexually, from a single ancestor.
A cone (in formal botanical usage: strobilus, plural strobili) is an organ on plants in the division Pinophyta (conifers) that contains the reproductive structures.
Connective tissue (CT) is one of the four basic types of animal tissue, along with epithelial tissue, muscle tissue, and nervous tissue.
Convergent evolution is the independent evolution of similar features in species of different lineages.
Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma.
Discover is an American general audience science magazine launched in October 1980 by Time Inc.
A disease is any condition which results in the disorder of a structure or function in an organism that is not due to any external injury.
An electrolyte is a substance that produces an electrically conducting solution when dissolved in a polar solvent, such as water.
An electron microscope is a microscope that uses a beam of accelerated electrons as a source of illumination.
Embryology (from Greek ἔμβρυον, embryon, "the unborn, embryo"; and -λογία, -logia) is the branch of biology that studies the prenatal development of gametes (sex cells), fertilization, and development of embryos and fetuses.
Endocrine glands are glands of the endocrine system that secrete their products, hormones, directly into the blood rather than through a duct.
The endocrine system is a chemical messenger system consisting of hormones, the group of glands of an organism that carry those hormones directly into the circulatory system to be carried towards distant target organs, and the feedback loops of homeostasis that the hormones drive.
Epistemology is the branch of philosophy concerned with the theory of knowledge.
The esophagus (American English) or oesophagus (British English), commonly known as the food pipe or gullet (gut), is an organ in vertebrates through which food passes, aided by peristaltic contractions, from the pharynx to the stomach.
The excretory system is a passive biological system that removes excess, unnecessary materials from the body fluids of an organism, so as to help maintain internal chemical homeostasis and prevent damage to the body.
In biology, the extracellular matrix (ECM) is a collection of extracellular molecules secreted by support cells that provides structural and biochemical support to the surrounding cells.
The Fallopian tubes, also known as uterine tubes or salpinges (singular salpinx), are two very fine tubes lined with ciliated epithelia, leading from the ovaries of female mammals into the uterus, via the uterotubal junction.
Feathers are epidermal growths that form the distinctive outer covering, or plumage, on birds and other, extinct species' of dinosaurs.
Fish are gill-bearing aquatic craniate animals that lack limbs with digits.
The flatworms, flat worms, Platyhelminthes, Plathelminthes, or platyhelminths (from the Greek πλατύ, platy, meaning "flat" and ἕλμινς (root: ἑλμινθ-), helminth-, meaning "worm") are a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates.
A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Magnoliophyta, also called angiosperms).
The flowering plants, also known as angiosperms, Angiospermae or Magnoliophyta, are the most diverse group of land plants, with 416 families, approximately 13,164 known genera and c. 295,383 known species.
In botany, a fruit is the seed-bearing structure in flowering plants (also known as angiosperms) formed from the ovary after flowering.
In vertebrates, the gallbladder is a small hollow organ where bile is stored and concentrated before it is released into the small intestine.
The gastrointestinal tract (digestive tract, digestional tract, GI tract, GIT, gut, or alimentary canal) is an organ system within humans and other animals which takes in food, digests it to extract and absorb energy and nutrients, and expels the remaining waste as feces.
A germ layer is a primary layer of cells that form during embryogenesis.
Graft-versus-host disease (GvHD) is a medical complication following the receipt of transplanted tissue from a genetically different person.
Gynoecium (from Ancient Greek γυνή, gyne, meaning woman, and οἶκος, oikos, meaning house) is most commonly used as a collective term for the parts of a flower that produce ovules and ultimately develop into the fruit and seeds.
Hair is a protein filament that grows from follicles found in the dermis.
In the religion of Ancient Rome, a haruspex (plural haruspices; also called aruspex) was a person trained to practice a form of divination called haruspicy (haruspicina), the inspection of the entrails (exta—hence also extispicy (extispicium)) of sacrificed animals, especially the livers of sacrificed sheep and poultry.
The heart is a muscular organ in most animals, which pumps blood through the blood vessels of the circulatory system.
Hermetic Qabalah is a Western esoteric tradition involving mysticism and the occult.
Histology, also microanatomy, is the study of the anatomy of cells and tissues of plants and animals using microscopy.
Histopathology (compound of three Greek words: ἱστός histos "tissue", πάθος pathos "suffering", and -λογία -logia "study of") refers to the microscopic examination of tissue in order to study the manifestations of disease.
A hormone (from the Greek participle “ὁρμῶ”, "to set in motion, urge on") is any member of a class of signaling molecules produced by glands in multicellular organisms that are transported by the circulatory system to target distant organs to regulate physiology and behaviour.
The human body is the entire structure of a human being.
The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder).
The human musculoskeletal system (also known as the locomotor system, and previously the activity system) is an organ system that gives humans the ability to move using their muscular and skeletal systems.
The human skeleton is the internal framework of the body.
The hypothalamus(from Greek ὑπό, "under" and θάλαμος, thalamus) is a portion of the brain that contains a number of small nuclei with a variety of functions.
The immune system is a host defense system comprising many biological structures and processes within an organism that protects against disease.
Immunofluorescence is a technique used for light microscopy with a fluorescence microscope and is used primarily on microbiological samples.
Immunosuppression is a reduction of the activation or efficacy of the immune system.
Information science is a field primarily concerned with the analysis, collection, classification, manipulation, storage, retrieval, movement, dissemination, and protection of information.
The integumentary system comprises the skin and its appendages acting to protect the body from various kinds of damage, such as loss of water or abrasion from outside.
The kidneys are two bean-shaped organs present in left and right sides of the body in vertebrates.
Knowledge representation and reasoning (KR, KR², KR&R) is the field of artificial intelligence (AI) dedicated to representing information about the world in a form that a computer system can utilize to solve complex tasks such as diagnosing a medical condition or having a dialog in a natural language.
The large intestine, also known as the large bowel or colon, is the last part of the gastrointestinal tract and of the digestive system in vertebrates.
The larynx, commonly called the voice box, is an organ in the top of the neck of tetrapods involved in breathing, producing sound, and protecting the trachea against food aspiration.
A leaf is an organ of a vascular plant and is the principal lateral appendage of the stem.
A ligament is the fibrous connective tissue that connects bones to other bones.
The liver, an organ only found in vertebrates, detoxifies various metabolites, synthesizes proteins, and produces biochemicals necessary for digestion.
The lungs are the primary organs of the respiratory system in humans and many other animals including a few fish and some snails.
The Division Lycopodiophyta (sometimes called lycophyta or lycopods) is a tracheophyte subgroup of the Kingdom Plantae.
Lymph is the fluid that circulates throughout the lymphatic system.
A lymph node or lymph gland is an ovoid or kidney-shaped organ of the lymphatic system, and of the adaptive immune system, that is widely present throughout the body.
The lymphatic system is part of the vascular system and an important part of the immune system, comprising a network of lymphatic vessels that carry a clear fluid called lymph (from Latin, lympha meaning "water") directionally towards the heart.
The lymphatic vessels (or lymph vessels or lymphatics) are thin-walled vessels structured like blood vessels, that carry lymph.
Medical diagnosis (abbreviated Dx or DS) is the process of determining which disease or condition explains a person's symptoms and signs.
The mesentery is a continuous set of tissues that attaches the intestines to the abdominal wall in humans and is formed by the double fold of peritoneum.
A microscope (from the μικρός, mikrós, "small" and σκοπεῖν, skopeîn, "to look" or "see") is an instrument used to see objects that are too small to be seen by the naked eye.
Microscopy is the technical field of using microscopes to view objects and areas of objects that cannot be seen with the naked eye (objects that are not within the resolution range of the normal eye).
A microtome (from the Greek mikros, meaning "small", and temnein, meaning "to cut") is a tool used to cut extremely thin slices of material, known as sections.
Mosses are small flowerless plants that typically grow in dense green clumps or mats, often in damp or shady locations.
Muscle is a soft tissue found in most animals.
The muscular system is an organ system consisting of skeletal, smooth and cardiac muscles.
A nail is a horn-like envelope covering the tips of the fingers and toes in most primates and a few other mammals.
In neuropsychology, linguistics, and the philosophy of language, a natural language or ordinary language is any language that has evolved naturally in humans through use and repetition without conscious planning or premeditation.
A neologism (from Greek νέο- néo-, "new" and λόγος lógos, "speech, utterance") is a relatively recent or isolated term, word, or phrase that may be in the process of entering common use, but that has not yet been fully accepted into mainstream language.
A nerve is an enclosed, cable-like bundle of axons (nerve fibers, the long and slender projections of neurons) in the peripheral nervous system.
The nervous system is the part of an animal that coordinates its actions by transmitting signals to and from different parts of its body.
Nervous tissue or nerve tissue is the main tissue component of the two parts of the nervous system; the brain and spinal cord of the central nervous system (CNS), and the branching peripheral nerves of the peripheral nervous system (PNS), which regulates and controls bodily functions and activity.
Neuroendocrinology is the branch of biology (specifically of physiology) which studies the interaction between the nervous system and the endocrine system, that is how the brain regulates the hormonal activity in the body.
New Year is the time or day at which a new calendar year begins and the calendar's year count increments by one.
New Year's Day, also called simply New Year's or New Year, is observed on January 1, the first day of the year on the modern Gregorian calendar as well as the Julian calendar.
In the Gregorian calendar, New Year's Eve (also known as Old Year's Day or Saint Sylvester's Day in many countries), the last day of the year, is on 31 December which is the seventh day of Christmastide.
Ontology (introduced in 1606) is the philosophical study of the nature of being, becoming, existence, or reality, as well as the basic categories of being and their relations.
In computer science and information science, an ontology encompasses a representation, formal naming, and definition of the categories, properties, and relations of the concepts, data, and entities that substantiate one, many, or all domains.
Ontology engineering in computer science, information science and systems engineering is a field which studies the methods and methodologies for building ontologies: formal representations of a set of concepts within a domain and the relationships between those concepts.
Organ donation is when a person allows an organ of theirs to be removed, legally, either by consent while the donor is alive or after death with the assent of the next of kin.
In biology, an organ system is a group of organs that work together to perform one or more functions.
Organ transplantation is a medical procedure in which an organ is removed from one body and placed in the body of a recipient, to replace a damaged or missing organ.
In cell biology, an organelle is a specialized subunit within a cell that has a specific function, in which their function is vital for the cell to live.
In biology, an organism (from Greek: ὀργανισμός, organismos) is any individual entity that exhibits the properties of life.
An organoid is a miniaturized and simplified version of an organ produced in vitro in three dimensions that shows realistic micro-anatomy.
The Organon (Greek: Ὄργανον, meaning "instrument, tool, organ") is the standard collection of Aristotle's six works on logic.
The ovary is an organ found in the female reproductive system that produces an ovum.
The pancreas is a glandular organ in the digestive system and endocrine system of vertebrates.
Paracelsus (1493/4 – 24 September 1541), born Theophrastus von Hohenheim (full name Philippus Aureolus Theophrastus Bombastus von Hohenheim), was a Swiss physician, alchemist, and astrologer of the German Renaissance.
Parathyroid glands are small endocrine glands in the neck of humans and other tetrapods that produce parathyroid hormone.
Parenchyma is the bulk of a substance.
A penis (plural penises or penes) is the primary sexual organ that male animals use to inseminate sexually receptive mates (usually females and hermaphrodites) during copulation.
The pharynx (plural: pharynges) is the part of the throat that is behind the mouth and nasal cavity and above the esophagus and the larynx, or the tubes going down to the stomach and the lungs.
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms' activities (energy transformation).
In biology, a phylum (plural: phyla) is a level of classification or taxonomic rank below Kingdom and above Class.
The pineal gland, also known as the conarium, kônarion or epiphysis cerebri, is a small endocrine gland in the vertebrate brain.
The Pinophyta, also known as Coniferophyta or Coniferae, or commonly as conifers, are a division of vascular land plants containing a single extant class, Pinopsida.
An explanation of the development of the pituitary gland (Hypophysis cerebri) & the congenital anomalies. In vertebrate anatomy, the pituitary gland, or hypophysis, is an endocrine gland about the size of a pea and weighing in humans.
In biology, placentation refers to the formation, type and structure, or arrangement of the placenta.
Plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae.
Plant anatomy or phytotomy is the general term for the study of the internal structure of plants.
Plant morphology or phytomorphology is the study of the physical form and external structure of plants.
Plant reproductive morphology is the study of the physical form and structure (the morphology) of those parts of plants directly or indirectly concerned with sexual reproduction.
A stem is one of two main structural axes of a vascular plant, the other being the root.
A priest or priestess (feminine) is a religious leader authorized to perform the sacred rituals of a religion, especially as a mediatory agent between humans and one or more deities.
Prognosis (Greek: πρόγνωσις "fore-knowing, foreseeing") is a medical term for predicting the likely or expected development of a disease, including whether the signs and symptoms will improve or worsen (and how quickly) or remain stable over time; expectations of quality of life, such as the ability to carry out daily activities; the potential for complications and associated health issues; and the likelihood of survival (including life expectancy).
The prostate (from Ancient Greek προστάτης, prostates, literally "one who stands before", "protector", "guardian") is a compound tubuloalveolar exocrine gland of the male reproductive system in most mammals.
Radiata or Radiates is a historical taxonomic rank that was used to classify animals with radially symmetric body plans, and is no longer accepted.
The rectum is the final straight portion of the large intestine in humans and some other mammals, and the gut in others.
The reproductive system or genital system is a system of sex organs within an organism which work together for the purpose of sexual reproduction.
Reptiles are tetrapod animals in the class Reptilia, comprising today's turtles, crocodilians, snakes, amphisbaenians, lizards, tuatara, and their extinct relatives.
The respiratory system (also respiratory apparatus, ventilatory system) is a biological system consisting of specific organs and structures used for gas exchange in animals and plants.
Rome (Roma; Roma) is the capital city of Italy and a special comune (named Comune di Roma Capitale).
In vascular plants, the root is the organ of a plant that typically lies below the surface of the soil.
The salivary glands in mammals are exocrine glands that produce saliva through a system of ducts.
In most biological nomenclature, a scale (Greek λεπίς lepis, Latin squama) is a small rigid plate that grows out of an animal's skin to provide protection.
Science journalism conveys reporting about science to the public.
A seed is an embryonic plant enclosed in a protective outer covering.
The seminal vesicles (glandulae vesiculosae), vesicular glands, or seminal glands, are a pair of simple tubular glands posteroinferior to the urinary bladder of some male mammals.
A sex organ (or reproductive organ) is any part of an animal's body that is involved in sexual reproduction.
The skeleton is the body part that forms the supporting structure of an organism.
Skin is the soft outer tissue covering vertebrates.
The spinal cord is a long, thin, tubular bundle of nervous tissue and support cells that extends from the medulla oblongata in the brainstem to the lumbar region of the vertebral column.
Splanchnic (σπλαγχνικός splanchnikos; from σπλάγχνον splanchnon, mostly found in its pl. form σπλάγχνα splanchna, "inward parts, organs") is usually used to describe organs in the abdominal cavity (visceral organs).
The spleen is an organ found in virtually all vertebrates.
Sponges, the members of the phylum Porifera (meaning "pore bearer"), are a basal Metazoa clade as sister of the Diploblasts.
Staining is an auxiliary technique used in microscopy to enhance contrast in the microscopic image.
The stamen (plural stamina or stamens) is the pollen-producing reproductive organ of a flower.
The stomach (from ancient Greek στόμαχος, stomachos, stoma means mouth) is a muscular, hollow organ in the gastrointestinal tract of humans and many other animals, including several invertebrates.
A strobilus (plural: strobili) is a structure present on many land plant species consisting of sporangia-bearing structures densely aggregated along a stem.
Stroma is the part of a tissue or organ with a structural or connective role.
In biology, a taxon (plural taxa; back-formation from taxonomy) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit.
Taxonomy is the practice and science of classification.
Taxonomy for search engines refers to classification methods that improve relevance in vertical search.
A tendon or sinew is a tough band of fibrous connective tissue that usually connects muscle to bone and is capable of withstanding tension.
The testicle or testis is the male reproductive gland in all animals, including humans.
For other uses, see Diaphragm (disambiguation). The thoracic diaphragm, or simply the diaphragm (partition), is a sheet of internal skeletal muscle in humans and other mammals that extends across the bottom of the thoracic cavity.
The thymus is a specialized primary lymphoid organ of the immune system.
The thyroid gland, or simply the thyroid, is an endocrine gland in the neck, consisting of two lobes connected by an isthmus.
In biology, tissue is a cellular organizational level between cells and a complete organ.
Tissue engineering is the use of a combination of cells, engineering and materials methods, and suitable biochemical and physicochemical factors to improve or replace biological tissues.
Tonsils are collections of lymphoid tissue facing into the aerodigestive tract.
The trachea, colloquially called the windpipe, is a cartilaginous tube that connects the pharynx and larynx to the lungs, allowing the passage of air, and so is present in almost all air-breathing animals with lungs.
Transplant rejection occurs when transplanted tissue is rejected by the recipient's immune system, which destroys the transplanted tissue.
Trichoplax adhaerens is the only extant representative of phylum Placozoa, which is a basal group of multicellular animals (metazoa).
A unicellular organism, also known as a single-celled organism, is an organism that consists of only one cell, unlike a multicellular organism that consists of more than one cell.
In human anatomy, the ureters are tubes made of smooth muscle fibers that propel urine from the kidneys to the urinary bladder.
In anatomy, the urethra (from Greek οὐρήθρα – ourḗthrā) is a tube that connects the urinary bladder to the urinary meatus for the removal of urine from the body.
The urinary bladder is a hollow muscular organ in humans and some other animals that collects and stores urine from the kidneys before disposal by urination.
Urine is a liquid by-product of metabolism in humans and in many animals.
The uterus (from Latin "uterus", plural uteri) or womb is a major female hormone-responsive secondary sex organ of the reproductive system in humans and most other mammals.
In mammals, the vagina is the elastic, muscular part of the female genital tract.
The vas deferens (Latin: "carrying-away vessel"; plural: vasa deferentia), also called ductus deferens (Latin: "carrying-away duct"; plural: ductus deferentes), is part of the male reproductive system of many vertebrates; these vasa transport sperm from the epididymis to the ejaculatory ducts in anticipation of ejaculation.
Vegetative reproduction (also known as vegetative propagation, vegetative multiplication or vegetative cloning) is any form of asexual reproduction occurring in plants in which a new plant grows from a fragment of the parent plant or grows from a specialized reproductive structure.
The vulva (wrapper, covering, plural vulvae or vulvas) consists of the external female sex organs.
White blood cells (WBCs), also called leukocytes or leucocytes, are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders.
2018 has been designated as the third International Year of the Reef by the International Coral Reef Initiative.
2019 (MMXIX) will be a common year starting on Tuesday of the Gregorian calendar, the 2019th year of the Common Era (CE) and Anno Domini (AD) designations, the 19th year of the 3rd millennium, the 19th year of the 21st century, and the 10th and last year of the 2010s decade.
Abdominal viscus, Hollow organ, Innervation of the viscera, Innervation of viscera, Internal organ, Internal organs, Organ (biology), Organic system, Organomics, Organs, Pelvic viscera, Plant organ, Plant organs, Splanchnic circulation, Thoracic viscera, Thoracic visceras, Vicera, Viscera, Viscera innervation, Visceral, Visceral innervation, Visceral organ, Visceral organs, Visceras, Viscus, Vital organ, Vital organs.