Preganglionic fibers from the thorncie and lumbar segments of the spinal cord ar

Question

Preganglionic fibers from the thorncie and lumbar segments of the spinal cord are part of the___division of the ANS. A. central B. sympathetic C. somatic motor D. parasympathetic E. ganglionic The parasympathetic nervous system in characterized by A. the absence of preganglionic fibers B. the absence of postganglionic axons. C. short postganglionic axons near the spinal cord. E. long postganglionic axons. Sympathetic preganglionic axons A. can synpase in terminal ganglia B. must synapse in parasympathetic ganglia C. can synapse with cells in the adrenal cortex. D. can synapse in the dorsal root ganglion. E. can synapse in either chain or collateral ganglia. The celiac, superior mesenteric and inferior mesenteric ganglia are___ganglia A. chain B. dorsal C. somatic motor D. parasympathetic E. collateral Parasympathetic ganglia are called___ganglia. A. pelvic B. chain C. collateral D. terminal E. dorsal Which of the following neurons is most likely to be adrenergic? A. preganglionic sympathetic B. preganglionic parasympathetic C. postganglionic sympathetic D. postganglionic parasympathetic E. postganglionic somatic motor

Explanation / Answer

Ans 38 b sympathetic

Autonomic nervous system has two subdivisions, sympathetic nervous system and parasympathetic nervous system. The cell bodies sympathetic preganglionic neurons lie in thoracic and lumbar region of spinal cord whereas the parasympathetic lies in brain stem and sacral region of spinal cord.

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