Anatomy and Cell Biology 2221 Lecture Notes - Lecture 2: Radial Nerve, Nova Scotia Trunk 2, Nerve Root

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It causes muscle to contract: muscle can only contract and shorten, typically, this cross joints and cause muscle to contract, conduct impulses from the cns to effectors (muscle and glands, somatic nervous system (controls body; soma. C1 spinal nerve comes out above c1 vertebrae: 7 cervical vertebrae, in the thoracic level, the spinal nerve come out their name for the vertebrae above them. There is a transition at c8: the c8 spinal nerve is going overtop of t1 vertebrae and below c7 vertebrae. Coming out between those two: spinal nerve components, the yellow part is nerve fibres. They come from neurons, the join together and form rootlet. Rootlet comes together and form root: ventral root, dorsal root, those are either motor or sensory fibre. At the point of a little bit left from the midpoint, they are separate: at the edge of left side, they are fused together. The doctor suspects that this inflammatory rash is due to shingles.

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