81 relations: Afferent nerve fiber, Ansa cervicalis, Anterior ramus of spinal nerve, Atlas (anatomy), Autonomic nervous system, Axon, Brachial plexus, Buttocks, Cauda equina, Central nervous system, Cervical plexus, Cervical spinal nerve 1, Cervical spinal nerve 8, Cervical vertebrae, Coccygeal plexus, Coccyx, Dermatome (anatomy), Descending colon, Dorsal root of spinal nerve, Dura mater, Efferent nerve fiber, Epaxial and hypaxial muscles, Erector spinae muscles, Foot, Ganglion, Gray ramus communicans, Greater occipital nerve, Greater trochanter, Hip, Human, Human vertebral column, Iliac crest, Intercostal nerves, Intercostobrachial nerve, Intervertebral foramina, Latissimus dorsi muscle, Leg, Longissimus, Lumbar arteries, Lumbar ganglia, Lumbar plexus, Lumbar vertebrae, Lumbosacral plexus, Lumbosacral trunk, Meningeal branches of spinal nerve, Multifidus muscle, Muscle fascicle, Muscle weakness, Myotome, Nerve, ..., Nerve plexus, Occipital bone, Omohyoid muscle, Paravertebral ganglia, Perception, Peripheral nervous system, Posterior ramus of spinal nerve, Psoas major muscle, Quadratus lumborum muscle, Ramus communicans, Rectum, Rhomboid muscles, Sacral nerve stimulation, Sacral plexus, Sacrum, Sciatica, Semispinalis thoracis, Sex organ, Spinal cord, Sternohyoid muscle, Sternothyroid muscle, Subcostal nerve, Suboccipital nerve, Sympathetic trunk, Thigh, Third occipital nerve, Thoracic vertebrae, Trapezius muscle, Urinary bladder, Ventral root of spinal nerve, White ramus communicans. Expand index (31 more) » « Shrink index
In the peripheral nervous system, an afferent nerve fiber is the nerve fiber (axon) of an afferent neuron (sensory neuron).
The ansa cervicalis (or ansa hypoglossi in older literature) is a loop of nerves that are part of the cervical plexus.
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The anterior ramus (pl. rami) (Latin for branch) (ventral ramus), is the anterior division of a spinal nerve.
In anatomy, the atlas (C1) is the most superior (first) cervical vertebra of the spine.
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The autonomic nervous system (ANS) is a division of the peripheral nervous system that influences the function of internal organs.
An axon (from Greek ἄξων áxōn, axis), also known as a nerve fibre, is a long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body.
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The brachial plexus is a network of nerves, running from the spine, formed by the anterior rami of the lower four cervical nerves and first thoracic nerve (C5–C8, T1).
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The buttocks (singular: buttock) are two rounded portions of the anatomy, located on the posterior of the pelvic region of apes (including humans), and many other bipeds or quadrupeds, and comprise a layer of fat superimposed on the gluteus maximus and gluteus medius muscles.
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The cauda equina (Latin for "horse's tail") is a bundle of spinal nerves and spinal nerve roots, consisting of the second through fifth lumbar nerve pairs, the first through fifth sacral nerve pairs, and the coccygeal nerve, all of which originate in the conus medullaris of the spinal cord.
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The central nervous system (CNS) is the part of the nervous system consisting of the brain and spinal cord.
The cervical plexus is a plexus of the ventral rami of the first four cervical spinal nerves which are located from C1 to C4 cervical segment in the neck.
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The cervical spinal nerve 1 (C1) is a spinal nerve of the cervical segment.
The cervical spinal nerve 8 (C8) is a spinal nerve of the cervical segment.
In vertebrates, cervical vertebrae (singular: vertebra) are those vertebrae immediately below the skull.
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The coccygeal plexus is a plexus of nerves near the coccyx bone.
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The coccyx (plural: coccyges), commonly referred to as the tailbone, is the final segment of the vertebral column in humans and apes, and certain other mammals such as horses.
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A dermatome is an area of skin that is mainly supplied by a single spinal nerve.
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The descending colon is the part of the colon from the splenic flexure to the beginning of the sigmoid colon and thereby part of the large intestine.
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The dorsal root of spinal nerve (or posterior root of spinal nerve) is one of two "roots" which emerge from the spinal cord.
Dura mater, or dura, is a thick membrane that is the outermost of the three layers of the meninges that surround the brain and spinal cord.
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In the nervous system, efferent nerves, otherwise known as motor or effector neurons, carry nerve impulses away from the central nervous system to effectors such as muscles or glands (and also inner hair cells of the mammalian inner ear).
Trunk muscles can be broadly divided into hypaxial muscles, which lie ventral to the horizontal septum of the vertebrae and epaxial muscles, which lie dorsal to the septum.
The erector spinæ is a muscle group of the back in humans and other animals, which extends the vertebral column (bending the spine such that the head moves posteriorly while the chest protrudes anteriorly).
The foot (plural feet) is an anatomical structure found in many vertebrates.
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In anatomy, a ganglion (plural ganglia) is a nerve cell cluster or a group of nerve cell bodies located in the autonomic nervous system.
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Each spinal nerve receives a branch called a gray ramus communicans from the adjacent paravertebral ganglion of the sympathetic trunk.
The greater occipital nerve is a spinal nerve, specifically the medial branch of the dorsal primary ramus of cervical spinal nerve 2.
The greater trochanter (great trochanter) of the femur is a large, irregular, quadrilateral eminence and a part of the skeletal system.
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In vertebrate anatomy, hip (or "coxa"Latin coxa was used by Celsus in the sense "hip", but by Pliny the Elder in the sense "hip bone" (Diab, p 77) in medical terminology) refers to either an anatomical region or a joint.
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Modern humans (Homo sapiens, primarily ssp. Homo sapiens sapiens) are the only extant members of the hominin clade (or human clade), a branch of the great apes; they are characterized by erect posture and bipedal locomotion, manual dexterity and increased tool use, and a general trend toward larger, more complex brains and societies.
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The human vertebral column is the backbone or spine, consisting of twenty-four articulating vertebrae, and nine fused vertebrae in the sacrum and the coccyx.
The crest of the ilium (or iliac crest) is the superior border of the wing of ilium and the superolateral margin of the greater pelvis.
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The intercostal nerves are part of the somatic nervous system, and arise from the anterior roots of the thoracic spinal nerves from T1 to T11.
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The intercostobrachial nerves are cutaneous branches of the intercostal nerves.
The intervertebral foramen (also called neural foramina, and often abbreviated as IV foramina or IVF), is a foramen between two spinal vertebrae.
The latissimus dorsi (plural: latissimi dorsi), meaning 'broadest of the back' (Latin latus meaning 'broad', latissimus meaning 'broadest' and dorsum meaning the back), is the larger, flat, dorso-lateral muscle on the trunk, posterior to the arm, and partly covered by the trapezius on its median dorsal region.
A leg is a weight bearing and locomotive structure, usually having a columnar shape.
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The longissimus is the muscle lateral to the semispinalis.
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The lumbar arteries are arteries located in the lower back or lumbar region.
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The lumbar ganglia are paravertebral ganglia.
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The lumbar plexus is a nervous plexus in the lumbar region of the body which forms part of the lumbosacral plexus.
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The lumbar vertebrae are, in human anatomy, the five vertebrae between the rib cage and the pelvis.
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The anterior divisions of the lumbar nerves, sacral nerves, and coccygeal nerve form the lumbosacral plexus, the first lumbar nerve being frequently joined by a branch from the twelfth thoracic.
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The lumbosacral trunk is nervous tissue that connects the lumbar plexus with the sacral plexus.
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The meningeal branches of the spinal nerves (also known as recurrent meningeal nerves, sinuvertebral nerves, or recurrent nerves of Luschka) are a number of small nerves that branch from the spinal nerve near the origin of the anterior and posterior rami, but before the rami communicantes branch.
The multifidus (multifidus spinae: pl. multifidi) muscle consists of a number of fleshy and tendinous fasciculi, which fill up the groove on either side of the spinous processes of the vertebrae, from the sacrum to the axis.
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In anatomy, a muscle fascicle is a bundle of skeletal muscle fibers surrounded by perimysium, a type of connective tissue.
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Muscle weakness or myasthenia (my- from Greek μυο meaning "muscle" + -asthenia ἀσθένεια meaning "weakness") is a lack of muscle strength.
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A myotome is the group of muscles that a single spinal nerve root innervates.
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A nerve is an enclosed, cable-like bundle of axons (the long, slender projections of neurons) in the peripheral nervous system.
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A nerve plexus is a plexus (branching network) of intersecting nerves.
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The occipital bone, a saucer-shaped membrane bone situated at the back and lower part of the skull, is trapezoidal in shape and curved on itself.
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The omohyoid muscle is a muscle that depresses the hyoid.
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Along the length of the sympathetic trunks are ganglia known as ganglia of sympathetic trunk, sympathetic ganglia or paravertebral ganglia.
Perception (from the Latin perceptio, percipio) is the organization, identification, and interpretation of sensory information in order to represent and understand the environment.
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The peripheral nervous system (PNS) is the part of the nervous system that consists of the nerves and ganglia outside of the brain and spinal cord.
The posterior ramus of spinal nerve (or posterior primary division) refers to the posterior division of a spinal nerve.
The psoas major (or,The word psoas comes from the Greek psoa meaning the “loin region.”) is a long fusiform muscle located on the side of the lumbar region of the vertebral column and brim of the lesser pelvis.
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The Quadratus lumborum is a muscle in the lower back.
Ramus communicans (plural rami communicantes) is the Latin term used for a nerve which connects two other nerves, and can be translated as "communicating branch".
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The rectum (from the Latin rectum intestinum, meaning straight intestine) is the final straight portion of the large intestine in some mammals, and the gut in others.
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The rhomboid muscles, often simply called the rhomboids, are rhombus-shaped muscles associated with the scapula and are chiefly responsible for its retraction.
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Sacral nerve stimulation, also termed sacral neuromodulation, is a type of medical electrical stimulation therapy.
In human anatomy, the sacral plexus is a nerve plexus which provides motor and sensory nerves for the posterior thigh, most of the lower leg and foot, and part of the pelvis.
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In tetrapod anatomy, the sacrum (or; plural: sacra or sacrums; Latin Os sacrum) is a large, triangular bone at the base of the spine and at the upper, back part of the pelvic cavity, where it is inserted like a wedge between the two hip bones.
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Sciatica, also known as sciatic neuritis, sciatic neuralgia, or lumbar radiculopathy, is when pain is felt going down the leg from the back.
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The semispinalis thoracis (or semispinalis dorsi) consists of thin, narrow, fleshy fasciculi, interposed between tendons of considerable length.
A sex organ or primary sexual characteristic, as narrowly defined, is any anatomical part of the body involved in sexual reproduction and constituting the reproductive system in a complex organism, especially the external sex organs; the external sex organs are also commonly referred to as the genitalia or genitals.
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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.
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The sternohyoid muscle is a thin, narrow muscle attaching the hyoid bone to the sternum, one of the paired strap muscles of the infrahyoid muscles serving to depress the hyoid bone.
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The Sternothyreoideus (or Sternothyroid muscle) is shorter and wider than the Sternohyoideus, beneath which it is situated.
The anterior division of the twelfth thoracic nerve (subcostal nerve) is larger than the others; it runs along the lower border of the twelfth rib, often gives a communicating branch to the first lumbar nerve, and passes under the lateral lumbocostal arch.
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The suboccipital nerve is the dorsal primary ramus of the first cervical nerve (C1).
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The sympathetic trunks (sympathetic chain, gangliated cord) are a paired bundle of nerve fibers that run from the base of the skull to the coccyx.
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In humans, the thigh is the area between the pelvis and the knee.
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While under the Trapezius, the medial branch of the posterior division of the third cervical nerve gives off a branch called the third occipital nerve (also known as the least occipital nerve), which pierces the Trapezius and ends in the skin of the lower part of the back of the head.
In vertebrates, thoracic vertebrae compose the middle segment of the vertebral column, between the cervical vertebrae and the lumbar vertebrae.
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In human anatomy, the trapezius is either one of two large superficial muscles that extend longitudinally from the occipital bone to the lower thoracic vertebrae and laterally to the spine of the scapula (shoulder blade).
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The urinary bladder is the organ that collects urine excreted by the kidneys before disposal by urination.
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In anatomy and neurology, the ventral root or anterior root is the efferent motor root of a spinal nerve.
The white ramus communicans (plural: rami communicantes) from Latin ramus (branch) and communicans (communicating) is the preganglionic sympathetic outflow nerve tract from the spinal cord.
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