The structure labeled 2 in the diagram is a a. somatic motor neuron. b. parasymp

Question

The structure labeled 2 in the diagram is a a. somatic motor neuron. b. parasympathetic preganglionic neuron. c. parasympathetic postganglionic neuron. d. sympathetic preganglionic neuron. e. somatosensory neuron. Which of the following descriptions of a preganglionic neuron is NOT correct? a. Has axons that exit the CSS in a cranial or spinal nerve. b. Has myelinated axons. c. Forms the first part of an autonomic motor pathway. d. Has its cell body in the brain or spinal cord. e. Forms gap junctions with postganglionic neurons in autonomic ganglia. Which of the following are structures containing sympathetic preganglionic axons that connect the anterior ramus of the spinal nerve with the ganglia of the sympathetic a. Lumbar splanchnic nerve b. Greater splanchnic nerve c. Inferior cervical ganglion d. White rami communicates e. Gray rami communicates

Explanation / Answer

The figure shows a structure of somatic motor neuron where specifically part 2 is parasympathetic preganglionic neuron which denotes an efferent neuron that sends impulse from CNS (Central Nervous System) to other body organs. It might be sympathetic preganglionic neuron but it tends to be shorter than parasympathetic preganglionic fiber and it lies closer to spinal cord.

Thus correct answer is “B”, parasympathetic preganglionic neuron

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