Get it on Google Play
New! Download Unionpedia on your Android™ device!
Faster access than browser!


Index Necrosis

Necrosis (from the Greek νέκρωσις "death, the stage of dying, the act of killing" from νεκρός "dead") is a form of cell injury which results in the premature death of cells in living tissue by autolysis. [1]

113 relations: Albumin, Amorphous solid, Amputation, Ancient Greek, Anti-inflammatory, Antibiotic, Antibody, Antigen, Antioxidant, Antivenom, Apoptosis, Artery, Asian giant hornet, Autolysis (biology), Avascular necrosis, Bleb (cell biology), Brown recluse spider, Caseous necrosis, Caspase, Cell (biology), Cell biology, Cell damage, Cell membrane, Cheiracanthium, Chemical burn, Chilean recluse spider, Chromatin, Coagulative necrosis, Collagenase, Common green bottle fly, Complement system, Cytokine, Death, Debridement, Decomposition, Denaturation (biochemistry), Digestive enzyme, Electron microscope, Embryogenesis, Extracellular, Fat necrosis, Fatty acid, Fibrin, Fibrinoid necrosis, Fibrinolysis, Friability, Frostbite, Gangrene, Gastrointestinal tract, Gene, ..., Glucose, Granuloma, Gumma (pathology), Hobo spider, Hypoxia (medical), Immunosuppression, Infarction, Inflammation, Injury, Interferon type I, Ischemia, Ischemic cell death, Karyolysis, Karyorrhexis, Lipase, Liquefactive necrosis, Macrophage, Maggot therapy, Medical procedure, Microbial toxin, Microvillus, Mycobacterium, Myocardial infarction, Natural killer cell, Necrotizing fasciitis, Nitric oxide, Nonsteroidal anti-inflammatory drug, Organelle, Osteonecrosis of the jaw, Oxygen, P53, Pancreas, Pancreatitis, Pathogen, Pathology, Pectin, Peritoneum, Phagocyte, Phagocytosis, Physiology, Proteolysis, Pus, Pyknosis, Reactive oxygen species, Recluse spider, Saponification, Science News, Snake venom, Snakebite, Society for Science & the Public, Spalacidae, Spalax, Spider bite, Spirochaete, Surgery, T cell, Tissue (biology), Toxic epidermal necrolysis, Triglyceride, Tuberculosis, Tumor suppressor, Venom, White blood cell. Expand index (63 more) »


The albumins (formed from Latin: albumen "(egg) white; dried egg white") are a family of globular proteins, the most common of which are the serum albumins.

New!!: Necrosis and Albumin · See more »

Amorphous solid

In condensed matter physics and materials science, an amorphous (from the Greek a, without, morphé, shape, form) or non-crystalline solid is a solid that lacks the long-range order that is characteristic of a crystal.

New!!: Necrosis and Amorphous solid · See more »


Amputation is the removal of a limb by trauma, medical illness, or surgery.

New!!: Necrosis and Amputation · See more »

Ancient Greek

The Ancient Greek language includes the forms of Greek used in ancient Greece and the ancient world from around the 9th century BC to the 6th century AD.

New!!: Necrosis and Ancient Greek · See more »


Anti-inflammatory, or antiinflammatory, refers to the property of a substance or treatment that reduces inflammation or swelling.

New!!: Necrosis and Anti-inflammatory · See more »


An antibiotic (from ancient Greek αντιβιοτικά, antibiotiká), also called an antibacterial, is a type of antimicrobial drug used in the treatment and prevention of bacterial infections.

New!!: Necrosis and Antibiotic · See more »


An antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shaped protein produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as pathogenic bacteria and viruses.

New!!: Necrosis and Antibody · See more »


In immunology, an antigen is a molecule capable of inducing an immune response (to produce an antibody) in the host organism.

New!!: Necrosis and Antigen · See more »


Antioxidants are molecules that inhibit the oxidation of other molecules.

New!!: Necrosis and Antioxidant · See more »


Antivenom, also known as antivenin, venom antiserum and antivenom immunoglobulin, is a medication made from antibodies which is used to treat certain venomous bites and stings.

New!!: Necrosis and Antivenom · See more »


Apoptosis (from Ancient Greek ἀπόπτωσις "falling off") is a process of programmed cell death that occurs in multicellular organisms.

New!!: Necrosis and Apoptosis · See more »


An artery (plural arteries) is a blood vessel that takes blood away from the heart to all parts of the body (tissues, lungs, etc).

New!!: Necrosis and Artery · See more »

Asian giant hornet

The Asian giant hornet (Vespa mandarinia), including the subspecies Japanese giant hornet (V. m. japonica), colloquially known as the yak-killer hornet, is the world's largest hornet, native to temperate and tropical Eastern Asia.

New!!: Necrosis and Asian giant hornet · See more »

Autolysis (biology)

In biology, autolysis, more commonly known as self-digestion, refers to the destruction of a cell through the action of its own enzymes.

New!!: Necrosis and Autolysis (biology) · See more »

Avascular necrosis

Avascular necrosis (AVN), also called osteonecrosis or bone infarction, is death of bone tissue due to interruption of the blood supply.

New!!: Necrosis and Avascular necrosis · See more »

Bleb (cell biology)

In cell biology, a bleb is a bulge or protrusion of the plasma membrane of a cell, human bioparticulate or abscess with an internal environment similar to that of a simple cell, characterized by a spherical, bulky morphology.

New!!: Necrosis and Bleb (cell biology) · See more »

Brown recluse spider

The brown recluse, Loxosceles reclusa, Sicariidae (formerly placed in a family "Loxoscelidae") is a recluse spider with a necrotic venom.

New!!: Necrosis and Brown recluse spider · See more »

Caseous necrosis

Caseous necrosis is a form of cell death in which the tissue maintains a cheese-like appearance.

New!!: Necrosis and Caseous necrosis · See more »


Caspases (cysteine-aspartic proteases, cysteine aspartases or cysteine-dependent aspartate-directed proteases) are a family of protease enzymes playing essential roles in programmed cell death (including apoptosis, pyroptosis and necroptosis) and inflammation.

New!!: Necrosis and Caspase · See more »

Cell (biology)

The cell (from Latin cella, meaning "small room") is the basic structural, functional, and biological unit of all known living organisms.

New!!: Necrosis and Cell (biology) · See more »

Cell biology

Cell biology (also called cytology, from the Greek κυτος, kytos, "vessel") is a branch of biology that studies the structure and function of the cell, the basic unit of life.

New!!: Necrosis and Cell biology · See more »

Cell damage

Cell injury is a variety or changes of stress that a cell suffers due to external as well internal environmental changes, is also known as Cell Injury.

New!!: Necrosis and Cell damage · See more »

Cell membrane

The cell membrane (also known as the plasma membrane or cytoplasmic membrane, and historically referred to as the plasmalemma) is a biological membrane that separates the interior of all cells from the outside environment (the extracellular space).

New!!: Necrosis and Cell membrane · See more »


Cheiracanthium is a genus of spiders in the Eutichuridae family.

New!!: Necrosis and Cheiracanthium · See more »

Chemical burn

A chemical burn occurs when living tissue is exposed to a corrosive substance such as a strong acid or base.

New!!: Necrosis and Chemical burn · See more »

Chilean recluse spider

The Chilean recluse spider is a venomous spider, Loxosceles laeta, of the family Sicariidae (formerly of the family Loxoscelidae).

New!!: Necrosis and Chilean recluse spider · See more »


Chromatin is a complex of macromolecules found in cells, consisting of DNA, protein, and RNA.

New!!: Necrosis and Chromatin · See more »

Coagulative necrosis

Coagulative necrosis is a type of accidental cell death typically caused by ischemia or infarction.

New!!: Necrosis and Coagulative necrosis · See more »


Collagenases are enzymes that break the peptide bonds in collagen.

New!!: Necrosis and Collagenase · See more »

Common green bottle fly

The common green bottle fly (Lucilia sericata) is a blow fly found in most areas of the world, and the most well-known of the numerous green bottle fly species.

New!!: Necrosis and Common green bottle fly · See more »

Complement system

The complement system is a part of the immune system that enhances (complements) the ability of antibodies and phagocytic cells to clear microbes and damaged cells from an organism, promotes inflammation, and attacks the pathogen's cell membrane.

New!!: Necrosis and Complement system · See more »


Cytokines are a broad and loose category of small proteins (~5–20 kDa) that are important in cell signaling.

New!!: Necrosis and Cytokine · See more »


Death is the cessation of all biological functions that sustain a living organism.

New!!: Necrosis and Death · See more »


Debridement is the medical removal of dead, damaged, or infected tissue to improve the healing potential of the remaining healthy tissue.

New!!: Necrosis and Debridement · See more »


Decomposition is the process by which organic substances are broken down into simpler organic matter.

New!!: Necrosis and Decomposition · See more »

Denaturation (biochemistry)

Denaturation is a process in which proteins or nucleic acids lose the quaternary structure, tertiary structure, and secondary structure which is present in their native state, by application of some external stress or compound such as a strong acid or base, a concentrated inorganic salt, an organic solvent (e.g., alcohol or chloroform), radiation or heat.

New!!: Necrosis and Denaturation (biochemistry) · See more »

Digestive enzyme

Digestive enzymes are a group of enzymes that break down polymeric macromolecules into their smaller building blocks, in order to facilitate their absorption by the body.

New!!: Necrosis and Digestive enzyme · See more »

Electron microscope

An electron microscope is a microscope that uses a beam of accelerated electrons as a source of illumination.

New!!: Necrosis and Electron microscope · See more »


Embryogenesis is the process by which the embryo forms and develops.

New!!: Necrosis and Embryogenesis · See more »


In cell biology, molecular biology and related fields, the word extracellular (or sometimes extracellular space) means "outside the cell".

New!!: Necrosis and Extracellular · See more »

Fat necrosis

Fat necrosis is a form of necrosis characterized by the action upon fat by digestive enzymes.

New!!: Necrosis and Fat necrosis · See more »

Fatty acid

In chemistry, particularly in biochemistry, a fatty acid is a carboxylic acid with a long aliphatic chain, which is either saturated or unsaturated.

New!!: Necrosis and Fatty acid · See more »


Fibrin (also called Factor Ia) is a fibrous, non-globular protein involved in the clotting of blood.

New!!: Necrosis and Fibrin · See more »

Fibrinoid necrosis

Fibrinoid necrosis is a form of necrosis, or tissue death, in which there is accumulation of amorphous, basic, proteinaceous material in the tissue matrix with a staining pattern reminiscent of fibrin.

New!!: Necrosis and Fibrinoid necrosis · See more »


Fibrinolysis is a process that prevents blood clots from growing and becoming problematic.

New!!: Necrosis and Fibrinolysis · See more »


Friability, the condition of being friable, describes the tendency of a solid substance to break into smaller pieces under duress or contact, especially by rubbing.

New!!: Necrosis and Friability · See more »


Frostbite occurs when exposure to low temperatures causes freezing of the skin or other tissues.

New!!: Necrosis and Frostbite · See more »


Gangrene is a type of tissue death caused by a lack of blood supply.

New!!: Necrosis and Gangrene · See more »

Gastrointestinal tract

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.

New!!: Necrosis and Gastrointestinal tract · See more »


In biology, a gene is a sequence of DNA or RNA that codes for a molecule that has a function.

New!!: Necrosis and Gene · See more »


Glucose is a simple sugar with the molecular formula C6H12O6.

New!!: Necrosis and Glucose · See more »


Granuloma is an inflammation found in many diseases.

New!!: Necrosis and Granuloma · See more »

Gumma (pathology)

A gumma is a soft, non-cancerous growth resulting from the tertiary stage of syphilis.

New!!: Necrosis and Gumma (pathology) · See more »

Hobo spider

The hobo spider (Eratigena agrestis, formerly Tegenaria agrestis) is a member of the genus of spiders known colloquially as funnel web spiders, but not to be confused with the Australian funnel-web spider.

New!!: Necrosis and Hobo spider · See more »

Hypoxia (medical)

Hypoxia is a condition in which the body or a region of the body is deprived of adequate oxygen supply at the tissue level.

New!!: Necrosis and Hypoxia (medical) · See more »


Immunosuppression is a reduction of the activation or efficacy of the immune system.

New!!: Necrosis and Immunosuppression · See more »


Infarction is tissue death (necrosis) due to inadequate blood supply to the affected area.

New!!: Necrosis and Infarction · See more »


Inflammation (from inflammatio) is part of the complex biological response of body tissues to harmful stimuli, such as pathogens, damaged cells, or irritants, and is a protective response involving immune cells, blood vessels, and molecular mediators.

New!!: Necrosis and Inflammation · See more »


Injury, also known as physical trauma, is damage to the body caused by external force.

New!!: Necrosis and Injury · See more »

Interferon type I

Human type I interferons (IFNs) are a large subgroup of interferon proteins that help regulate the activity of the immune system.

New!!: Necrosis and Interferon type I · See more »


Ischemia or ischaemia is a restriction in blood supply to tissues, causing a shortage of oxygen that is needed for cellular metabolism (to keep tissue alive).

New!!: Necrosis and Ischemia · See more »

Ischemic cell death

"Ischemic cell death", or "Oncosis", is a form of accidental cell death.

New!!: Necrosis and Ischemic cell death · See more »


Karyolysis (from Greek κάρυον karyon, "kernel, seed or nucleus", and λύσις lysis from λύειν lyein, "to separate") is the complete dissolution of the chromatin of a dying cell due to the enzymatic degradation by endonucleases.

New!!: Necrosis and Karyolysis · See more »


Karyorrhexis (from Greek κάρυον karyon, "kernel, seed or nucleus", and ῥῆξις rhexis, "bursting") is the destructive fragmentation of the nucleus of a dying cell whereby its chromatin is distributed irregularly throughout the cytoplasm.

New!!: Necrosis and Karyorrhexis · See more »


A lipase is any enzyme that catalyzes the hydrolysis of fats (lipids).

New!!: Necrosis and Lipase · See more »

Liquefactive necrosis

Liquefactive necrosis (or colliquative necrosis) is a type of necrosis which results in a transformation of the tissue into a liquid viscous mass.

New!!: Necrosis and Liquefactive necrosis · See more »


Macrophages (big eaters, from Greek μακρός (makrós).

New!!: Necrosis and Macrophage · See more »

Maggot therapy

Maggot therapy is a type of biotherapy involving the introduction of live, disinfected maggots (fly larvae) into the non-healing skin and soft tissue wound(s) of a human or animal for the purpose of cleaning out the necrotic (dead) tissue within a wound (debridement) and disinfection.

New!!: Necrosis and Maggot therapy · See more »

Medical procedure

A medical procedure is a course of action intended to achieve a result in the delivery of healthcare.

New!!: Necrosis and Medical procedure · See more »

Microbial toxin

Microbial toxins are toxins produced by micro-organisms, including bacteria and fungi.

New!!: Necrosis and Microbial toxin · See more »


Microvilli (singular: microvillus) are microscopic cellular membrane protrusions that increase the surface area for diffusion and minimize any increase in volume, and are involved in a wide variety of functions, including absorption, secretion, cellular adhesion, and mechanotransduction.

New!!: Necrosis and Microvillus · See more »


Mycobacterium is a genus of Actinobacteria, given its own family, the Mycobacteriaceae.

New!!: Necrosis and Mycobacterium · See more »

Myocardial infarction

Myocardial infarction (MI), commonly known as a heart attack, occurs when blood flow decreases or stops to a part of the heart, causing damage to the heart muscle.

New!!: Necrosis and Myocardial infarction · See more »

Natural killer cell

Natural killer cells or NK cells are a type of cytotoxic lymphocyte critical to the innate immune system.

New!!: Necrosis and Natural killer cell · See more »

Necrotizing fasciitis

Necrotizing fasciitis (NF), commonly known as flesh-eating disease, is an infection that results in the death of the body's soft tissue.

New!!: Necrosis and Necrotizing fasciitis · See more »

Nitric oxide

Nitric oxide (nitrogen oxide or nitrogen monoxide) is a colorless gas with the formula NO.

New!!: Necrosis and Nitric oxide · See more »

Nonsteroidal anti-inflammatory drug

Nonsteroidal anti-inflammatory drugs (NSAIDs) are a drug class that reduce pain, decrease fever, prevent blood clots and, in higher doses, decrease inflammation.

New!!: Necrosis and Nonsteroidal anti-inflammatory drug · See more »


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.

New!!: Necrosis and Organelle · See more »

Osteonecrosis of the jaw

Osteonecrosis of the jaw (ONJ) is a severe bone disease (osteonecrosis) that affects the jaws (the maxilla and the mandible).

New!!: Necrosis and Osteonecrosis of the jaw · See more »


Oxygen is a chemical element with symbol O and atomic number 8.

New!!: Necrosis and Oxygen · See more »


Tumor protein p53, also known as p53, cellular tumor antigen p53 (UniProt name), phosphoprotein p53, tumor suppressor p53, antigen NY-CO-13, or transformation-related protein 53 (TRP53), is any isoform of a protein encoded by homologous genes in various organisms, such as TP53 (humans) and Trp53 (mice).

New!!: Necrosis and P53 · See more »


The pancreas is a glandular organ in the digestive system and endocrine system of vertebrates.

New!!: Necrosis and Pancreas · See more »


Pancreatitis is inflammation of the pancreas.

New!!: Necrosis and Pancreatitis · See more »


In biology, a pathogen (πάθος pathos "suffering, passion" and -γενής -genēs "producer of") or a '''germ''' in the oldest and broadest sense is anything that can produce disease; the term came into use in the 1880s.

New!!: Necrosis and Pathogen · See more »


Pathology (from the Ancient Greek roots of pathos (πάθος), meaning "experience" or "suffering" and -logia (-λογία), "study of") is a significant field in modern medical diagnosis and medical research, concerned mainly with the causal study of disease, whether caused by pathogens or non-infectious physiological disorder.

New!!: Necrosis and Pathology · See more »


Pectin (from πηκτικός, "congealed, curdled") is a structural heteropolysaccharide contained in the primary cell walls of terrestrial plants.

New!!: Necrosis and Pectin · See more »


The peritoneum is the serous membrane that forms the lining of the abdominal cavity or coelom in amniotes and some invertebrates, such as annelids.

New!!: Necrosis and Peritoneum · See more »


Phagocytes are cells that protect the body by ingesting harmful foreign particles, bacteria, and dead or dying cells.

New!!: Necrosis and Phagocyte · See more »


In cell biology, phagocytosis is the process by which a cell—often a phagocyte or a protist—engulfs a solid particle to form an internal compartment known as a phagosome.

New!!: Necrosis and Phagocytosis · See more »


Physiology is the scientific study of normal mechanisms, and their interactions, which work within a living system.

New!!: Necrosis and Physiology · See more »


Proteolysis is the breakdown of proteins into smaller polypeptides or amino acids.

New!!: Necrosis and Proteolysis · See more »


Pus is an exudate, typically white-yellow, yellow, or yellow-brown, formed at the site of inflammation during bacterial or fungal infection.

New!!: Necrosis and Pus · See more »


Pyknosis, or karyopyknosis, is the irreversible condensation of chromatin in the nucleus of a cell undergoing necrosis or apoptosis.

New!!: Necrosis and Pyknosis · See more »

Reactive oxygen species

Reactive oxygen species (ROS) are chemically reactive chemical species containing oxygen.

New!!: Necrosis and Reactive oxygen species · See more »

Recluse spider

The recluse spiders or brown spiders, genus Loxosceles, also known as fiddle-backs, violin spiders, or reapers, are a genus of venomous spiders known for their bite, which sometimes produces a characteristic set of symptoms known as loxoscelism.

New!!: Necrosis and Recluse spider · See more »


Saponification is a process that produces soap.

New!!: Necrosis and Saponification · See more »

Science News

Science News is an American bi-weekly magazine devoted to short articles about new scientific and technical developments, typically gleaned from recent scientific and technical journals.

New!!: Necrosis and Science News · See more »

Snake venom

Snake venom is highly modified saliva containing zootoxins which facilitates the immobilization and digestion of prey, and defense against threats.

New!!: Necrosis and Snake venom · See more »


A snakebite is an injury caused by the bite of a snake, especially a venomous snake.

New!!: Necrosis and Snakebite · See more »

Society for Science & the Public

Society for Science & the Public (SSP), formerly known as Science Service, is a 501(c)3 non-profit organization dedicated to the promotion of science, through its science education programs and publications, including the bi-weekly Science News magazine and the free-accessible online.

New!!: Necrosis and Society for Science & the Public · See more »


The Spalacidae, or spalacids, are a family of rodents in the large and complex superfamily Muroidea.

New!!: Necrosis and Spalacidae · See more »


The genus Spalax contains the blind, fossorial, or subterranean mole rats, which are one of several types of rodents that are called "mole rats".

New!!: Necrosis and Spalax · See more »

Spider bite

A spider bite, also known as arachnidism, is an injury resulting from the bite of a spider.

New!!: Necrosis and Spider bite · See more »


A spirochaete or spirochete is a member of the phylum Spirochaetes, which contains distinctive diderm (double-membrane) bacteria, most of which have long, helically coiled (corkscrew-shaped or spiraled, hence the name) cells.

New!!: Necrosis and Spirochaete · See more »


Surgery (from the χειρουργική cheirourgikē (composed of χείρ, "hand", and ἔργον, "work"), via chirurgiae, meaning "hand work") is a medical specialty that uses operative manual and instrumental techniques on a patient to investigate or treat a pathological condition such as a disease or injury, to help improve bodily function or appearance or to repair unwanted ruptured areas.

New!!: Necrosis and Surgery · See more »

T cell

A T cell, or T lymphocyte, is a type of lymphocyte (a subtype of white blood cell) that plays a central role in cell-mediated immunity.

New!!: Necrosis and T cell · See more »

Tissue (biology)

In biology, tissue is a cellular organizational level between cells and a complete organ.

New!!: Necrosis and Tissue (biology) · See more »

Toxic epidermal necrolysis

Toxic epidermal necrolysis (TEN) is a type of severe skin reaction.

New!!: Necrosis and Toxic epidermal necrolysis · See more »


A triglyceride (TG, triacylglycerol, TAG, or triacylglyceride) is an ester derived from glycerol and three fatty acids (from tri- and glyceride).

New!!: Necrosis and Triglyceride · See more »


Tuberculosis (TB) is an infectious disease usually caused by the bacterium Mycobacterium tuberculosis (MTB).

New!!: Necrosis and Tuberculosis · See more »

Tumor suppressor

A tumor suppressor gene, or antioncogene, is a gene that protects a cell from one step on the path to cancer.

New!!: Necrosis and Tumor suppressor · See more »


Venomous Animals Venom is a form of toxin secreted by an animal for the purpose of causing harm to another.

New!!: Necrosis and Venom · See more »

White blood cell

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.

New!!: Necrosis and White blood cell · See more »

Redirects here:

Creeping necrosis, Dead tissue, Frank necrosis, Necrose, Necrosed, Necrotic, Necrotic tissue, Necrotising angiitis, Necrotization, Necrotize, Necrotizing, Necrotoxin, Tissue breakdown, Tissue death, Tissue necrosis.


[1] https://en.wikipedia.org/wiki/Necrosis

Hey! We are on Facebook now! »