Question

Cutting the ventral root of the spinal nerve at L2 would interrupt the transmission of what type of information?

a) voluntary motor output
b) ANS motor output
c) sensory input
d) a and b are correct

Answer 1

Cutting the ventral root of the spinal nerve at L2 would disrupt both voluntary motor commands and autonomic nervous system output, affecting both voluntary and involuntary muscle control.

Step-by-step explanation:

Cutting the ventral root of the spinal nerve at L2 would interrupt the transmission of voluntary motor output and ANS motor output. This occurs because the ventral root contains the axons of motor neurons that send signals from the spinal cord to the muscles, influencing both voluntary movements controlled by the somatic nervous system and involuntary movements regulated by the autonomic nervous system (ANS), which includes the sympathetic and parasympathetic systems. Therefore, the correct answer is 'd) a and b are correct'.