When you raise your hand to ask a question in class, what structures carry the impulse from your brain to your deltoid muscle?
A) Ascending tracts
B) Sensory nerves
C) Descending tracts
D) Cranial nerves

Question

Quizplus · Accepted Answer

Descending tracts are responsible for carrying motor signals from the brain down the spinal cord to muscles, such as the deltoid muscle, to initiate movement.

When You Raise Your Hand to Ask a Question in Class