Acetylcholine is released by all somatic motor neurons, all preganglionic neurons of the ANS and by the postganglionic parasympathetic nerve fibers.
Indicate whether the statement is true or false
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Question 2) The adrenal medulla is considered by some to be a misplaced sympathetic ganglion since embryologically, they arise from the same tissue.
Indicate whether the statement is true or false
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Question 3) Sympathetic responses generally are widespread because ________.
A) preganglionic fibers are short
B) inactivation of ACh is fairly slow
C) NE and epinephrine are secreted into the blood as part of the sympathetic response
D) preganglionic fibers are long
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Question 4) The effect of beta-blocker drugs (block beta-receptors) is to decrease blood pressure.
Indicate whether the statement is true or false
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Question 5) Which of the following statements is FALSE?
A) Sympathetic has extensive branching of preganglionic fibers; parasympathetic has minimal branching of preganglionic fibers.
B) Sympathetic origin is craniosacral; parasympathetic is thoracolumbar.
C) Sympathetic division has short preganglionic and long postganglionic fibers; parasympathetic has long preganglionic and short postganglionic fibers.
D) Sympathetic ganglia are within a few centimeters of the CNS; parasympathetic ganglia are close to the visceral organs served.
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Question 6) Most disorders of the autonomic nervous system reflect abnormalities of smooth muscle control.
Indicate whether the statement is true or false
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Question 7) Which of the following is NOT a result of parasympathetic stimulation?
A) elimination of urine
B) salivation
C) increased peristalsis of the digestive viscera
D) dilation of the pupils
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Question 8) Thermoregulatory responses to increased heat are mediated by the sympathetic nervous division.
Indicate whether the statement is true or false
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Question 9) Which of these effectors is NOT directly controlled by the autonomic nervous system?
A) most glands
B) smooth muscle
C) cardiac muscle
D) skeletal muscle
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Question 10) All visceral organs receive dual innervation from both the sympathetic and parasympathetic divisions of the ANS.
Indicate whether the statement is true or false
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