In the autonomic nervous system, all preganglionic fibers release the neurotrans

Question

In the autonomic nervous system, all preganglionic fibers release the neurotransmitter A) acetylcholine B) norepinephrine C) serotonirn D) dopamine E) epinephrine 63. 64. In the autonomic nervous system, most sympathetic postganglionic fibers release the neurotransmitter: A) acetylcholine B) norepinephrine C) serotonin D) dopamine E) GABA 65. Terminal ganglia are where: A) the cell bodies for sympathetic preganglionic fibers are located 8) parasympathetic preganglionic fibers synapse C) the cell bodies of sensory neurons are located D) sympat E) sympathetic preganglionic fibers synapse with parasympathetic postganglionic fibers with parasympathetic postganglionic fibers hetic preganglionic fibers synapse with sympathetic postganglionic fibers ALL of the following are TRUE for postganglionic neurons EXCEPT: A) They have nicotinic receptors on their membranes. 8) Their cell bodies are in the gray horns of the spinal cord 66. C) Their axons are unmyelinated D) They are stimulated by preganglionic fibers. E) They stimulate visceral effectors Which of the following is an example of an effector for a visceral efferent neuron? A) quadriceps femoris B) diaphragm C) extrinsic eye muscles 67. D) smooth muscle in the wall of the small intestine E) All of the above are correct except the quadriceps femoris. Which of the following statements is TRUE regarding the autonomic nervous system? A) Its sensory input includes impulses from interoreceptors. B) Its preganglionic fibers release acetylcholine or norepinephrine. C) Its postganglionic fibers release only acetylcholine. D) Its effectors include some skeletal muscles E) The sympathetic division is the energy conservation-restoration' system. 68. 69. The efferent portion of the autonomic nervous system has two principal divisions, the: A) sensory and motor B) preganglionic and postganglionic C) CNS and PNS D) sympathetic and parasympathetic E) spinal nerves and cranial nerves The cell bodies of preganglionic neurons in the ANS are located in the: A) dorsal root ganglia B) prevertebral ganglia C) brain stem or spinal cord D) visceral effectors E) major spinal nerve plexuses 70.

Explanation / Answer

Question No 63

Ans: A - the autonamic nervous system,all pregangloionic fiber realse the neurotransmitter Acetylcholine

Question No 64

Ans: A - most sympathetic postganglion fibers realse the neuro transmitter Acetylcholine

Question No 65

Ans: C

Question 66

Ans: B

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