Question

A young diver injures the right dorsal root of his first lumbar vertebrate during a failed dive. What major functions could be lost due to his injury? Movement in his lower extremities Sensation in his lower extremities Control of the right section of his lower body Sensation in the right section of his upper body

Answer 1

answer: sensation in his lower extremities

Answer 2

Sensation in his lower extremities

Step-by-step explanation:

The dorsal root of a spinal nerve is formed by sensory fibers and the ventral root by motor fibers. If the dorsal (sensitive) root of a spinal nerve is injured, the part innervated by it will lose its sensitivity without, however, muscle paralysis. As the first lumbar vertebrate is near the lower extremities of the body, we can conclude that if a young diver injures the right dorsal root of his first lumbar vertebrate during a dive he will lose sensation in the lower extremities.