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An action potential (or nerve impulse) is a transient alteration of the transmembrane voltage (or membrane potential) across the membrane in an excitable cell generated by the activity of voltage-gated ion channels embedded in the membrane. The best known action potentials are pulse-like waves that travel along the axons of neurons.
The hypaxial muscles are located on the ventral side of the body, often below the horizontal septum in many species (primarily fish and amphibians). In all species, the hypaxial muscles are innervated by the ventral ramus (branch) of the spinal nerves, while the epaxial muscles are innervated by the dorsal ramus.
Intercostal nerves; List of nerves of the human body; Neurological disorder; Neuroscience; Outline of the human nervous system; Peripheral nervous system; Spinal cord; Subcostal nerve; Talk:Meridian (Chinese medicine)/Archive 1; User:Madhero88/CNSIBM; User:Madhero88/Medicalg; User talk:Persian Poet Gal/Archive4
A spinal nerve is a mixed nerve, which carries motor, sensory, and autonomic signals between the spinal cord and the body. In the human body there are 31 pairs of spinal nerves, one on each side of the vertebral column. [1] [2] These are grouped into the corresponding cervical, thoracic, lumbar, sacral and coccygeal regions of the spine. [1]
Composition and central connections of the spinal nerves; Pathways from the brain to the spinal cord; The meninges of the brain and medulla spinalis; The cerebrospinal fluid; The cranial nerves. The olfactory nerves; The optic nerve; The oculomotor nerve; The trochlear nerve; The trigeminal nerve; The abducens nerve; The facial nerve; The ...
The fifth lumbar spinal nerve 5 (L5) [5] originates from the spinal column from below the lumbar vertebra 5 (L5). L5 supplies many muscles, either directly or through nerves originating from L5. They are not innervated with L5 as single origin, but partly by L5 and partly by other spinal nerves. The muscles are: gluteus maximus muscle mainly S1
Segmental innervation refers to the distribution (innervation) of nerves within an organ or muscle. These nerves are attached to a segment of the spine. [1] Segmental innervation can be mapped through stimulation of the nerve at the spinal segment. [2]
This image is a derivative work of the following images: File:Brachial plexus.svg licensed with Cc-by-sa-3.0-migrated, GFDL 2009-12-26T03:11:11Z Mcstrother 982x403 (15162 Bytes) corrected spelling ("subclacius"-->"subclavius") and placement of subscapular nerve (arises from the superior trunk, not the ramus of C5)