Which of the following is the pathway that a nervous signal travels in completin

Question

Which of the following is the pathway that a nervous signal travels in completing a typical vertebrate reflex? Brain - interneurons of the spinal cord - motor neurons - sensory neurons - sensory receptors sensory receptors - sensory neurons - interneurons of the spinal cord - motor neuron sensory receptors - sensory neurons - interneurons of the spinal cord - brain - motor neuron Sensory receptors - interneurons of the spinal cord - motor neurons - sensory neurons - brain Brain - motor neuron - interneurons of the spinal cord - sensory neurons I DON'T KNOW YET

Explanation / Answer

Answer:

Sensory receptors-sensory neurons--interneurons of the spinal cor-motor neurons

Explanation:

A somatic reflex employs a reflex arc, in which signals travel along the following pathway:

1. somatic receptors in the skin, a muscle, or a tendon;

2. afferent nerve fibers, which carry information from these receptors into the dorsal horn of the spinal cord;

3. interneurons, which integrate information; these are lacking from some reflex arcs;

4. efferent nerve fibers, which carry motor impulses to the skeletal muscles;

5. skeletal muscles, the somatic effectors that carry out the response.

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