Question

select the correct answer from each drop-down menu. the nervous system and the muscle system respond to stimuli to produce motion. the movements of skeletal muscles are mostly voluntary. involuntary movements occur in these muscles when the nerve impulse passes from a sensory neuron to a motor neuron via an interneuron in the dropdown with options: brain, muscle tissue, spinal cord

Explanation:

For the second dropdown, we need to identify where the reflex arc (involuntary movement pathway) has the interneuron. In a reflex arc, the sensory neuron sends a signal to an interneuron in the spinal cord, which then sends it to the motor neuron. The brain is involved in voluntary control, and muscle tissue is where the muscle is, not where the interneuron for reflexes is. So the correct option is spinal cord.

Answer:

spinal cord