Question

Select the true statements (more than one) about the characteristics of sensory neurons in the stretch reflex. Stretch activates muscle spindle sensory neurons to send afferent impulses to spinal synapses with 1) alpha motor neurons that send efferent impulses back to the stretched muscle, causing it to contract; and 2) interneurons that reduce the efferent impulses of the antagonist muscle motor neurons (reciprocal inhibition).Select the true statements (more than one) about the characteristics of sensory neurons in the stretch reflex. These sensory neurons transmit afferent impulses toward the spinal cord (CNS). These sensory neurons transmit impulses to the spinal cord via interneurons. When a stretch activates the muscle spindle, these sensory neurons transmit impulses at a higher frequency. These sensory neurons transmit efferent impulses to antagonist muscles. These sensory neurons typically transmit efferent impulses toward antagonist muscles.

Answer 1

Answer: The statements below are TRUE about the characteristics of sensory neurons in the stretch reflex:

-These sensory neurons transmit afferent impulses toward the spinal cord (CNS). ==> TRUE

-When a stretch activates the muscle spindle, these sensory neurons transmit impulses at a higher frequency. ==> TRUE