The Spinal Nerves
(Nervi Spinales)
The spinal nerves spring from the medulla spinalis, and are transmitted through the intervertebral foramina.
31 pairs of spinal nerves arise along the spinal cord. These are "mixed" nerves because each contain both sensory and motor axons. However, within the spinal column, ...
sensory root of a spinal nerve that carries impulses to the spinal cord; ventral root carries impulses from the cord
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby
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The somatic subdivision refers to those cranial and spinal nerves that carry messages to voluntary skeletal muscles. The autonomic nervous system is that part of the peripheral nervous system that is not under voluntary control.
(Science: anatomy) Elongated, approximately cylindrical part of the central nervous system of vertebrates that lies in the vertebral canal and from which the spinal nerves emerge.
Human spinal cord is a hollow tube of nervous tissue
31 pairs of spinal nerves enter and leave spinal cord
Grey matter contains unmyelinated neurones (responsible for grey colour)
Synapse of relay neurone with sensory and motor neurone ...
myotome That part of a somite destined to form muscles; the muscle group innervated by a single spinal nerve.
myriapods Members of the four noninsect classes of the subphylum Uniramia. Includes centipedes, millipedes, pauropods, and symphylans.
Cranial nerves in the PNS take impulses to and from the brain (CNS). Spinal nerves take impulses to and away from the spinal cord. There are two major subdivisions of the PNS motor pathways: the somatic and the autonomic.
infects certain plants; the rabies virus infects only mammals; and the AIDS virus, HIV, infects only certain human blood cells. The various viruses that cause hepatitis invade only liver tissues, while the polio virus only reproduces in spinal nerve ...
 See also: Nerves, Class, Human, Posterior, Anatomy
  
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