Which statement correctly describes descending tracts?
A)They relay messages from the brain to the efferent neurons.
B)They involve the lateral spinothalamic tract.
C) They are part of the peripheral nervous system.
D) They are a bundle of neuronal axons, some afferent and some efferent.

Question

Quizplus · Accepted Answer

Descending tracts relay messages from the brain to the efferent neurons, which then carry the messages to the target muscles or organs. Therefore, option A is the correct statement. Option B is incorrect because the lateral spinothalamic tract is an ascending tract that carries sensory information from the body to the brain. Option C is incorrect because descending tracts are a part of the central nervous system, not the peripheral nervous system. Option D is partially correct because descending tracts are a bundle of neuronal axons, but they contain only efferent neurons.

Which Statement Correctly Describes Descending Tracts