Question

Each spinal nerve is actually a nerve trunk - it contains hundreds of individual afferent + efferent nerve fibers that are bound together by connective tissue sheaths.

A) True
B) False

Answer 1

The statement is true; spinal nerves are composed of hundreds of individual afferent and efferent nerve fibers bundled together by connective tissue.

Step-by-step explanation:

Spinal nerves are complex structures that transmit sensory and motor information between the spinal cord and the rest of the body. Bundles of axons, which include both sensory and motor axons, make up these nerves. They are ensheathed by three layers of connective tissue: the epineurium, the perineurium, and the endoneurium. The sensory neurons have soma located in the dorsal root ganglia. Sensory axons enter the spinal cord through the dorsal nerve root, while motor fibers leave through the ventral nerve root. The unique organization of these nerves allows for a high degree of functionality and complexity.