Which of the following statements are true of a reflex arc? (Read carefully and select all of the correct statements.)
A)Interneurons may be present in the CNS.
B)A sensory neuron carries impulses to the CNS.
C)The stimulus for the reflex is detected by a receptor.
D)Synapses in the reflex arc are in the dorsal root ganglia.
E)The effector of the reflex is often muscle tissue
F)The effector is activated by impulses from a motor neuron.

Question

Quizplus · Accepted Answer

A reflex arc involves a sensory neuron carrying impulses to the CNS, where interneurons may be present. The stimulus for the reflex is detected by a receptor, and the effector of the reflex is often muscle tissue, which is activated by impulses from a motor neuron. Synapses in the reflex arc are not in the dorsal root ganglia, but rather in the spinal cord or brainstem. Therefore, statements B, C, E, and F are true, while statement D is false.

Which of the Following Statements Are True of a Reflex