- A Cell bodies of motor neurons that directly control the contraction of skeletal muscle fibres themselves as widely reported
- B Cell bodies of primary sensory (afferent) neurons that transmit pain, temperature, and touch to the spinal cord
- C Cell bodies of autonomic neurons that regulate involuntary visceral organ function broadly in standard practice
- D Mainly the cell bodies of interneurons confined largely within the grey matter of the spinal cord under most conditions encountered
Correct answer: B. Cell bodies of primary sensory (afferent) neurons that transmit pain, temperature, and touch to the spinal cord
Explanation: DRG (dorsal root ganglion): contains cell bodies of primary sensory neurons (pseudounipolar). They receive signals from skin, muscles, organs and transmit to dorsal horn of spinal cord.
Concept context
Brain, spinal cord, neurons, reflex arcs, and sense organs.