study guide 14 - Study guide 14 Question 1 Cranial nerves...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Study guide 14 Question 1 Cranial nerves III, VII, and IX supply the entire parasympathetic innervation of the head; however, only the preganglionic fibers lie within these three pairs of cranial nerves. Answer True False Question 2 Acetylcholine is the substance released by the axonal endings of the somatic efferent fibers and by the parasympathetic nerve fiber endings. Answer **True False Question 3 Alpha-adrenergic effects are usually stimulatory and mediatory. Answer **True False Question 4 Autonomic reflex centers occur in the spinal cord, medulla, and midbrain. Answer **True False Question 5 Because parasympathetic fibers never run in spinal nerves, rami communicantes are associated only with the sympathetic division. Answer **True False Question 6 Cranial nerves VII, IX, and X contain postganglionic fibers of the parasympathetic nervous system. Answer True ** False Question 7 Most blood vessels are innervated by the sympathetic division alone. Answer **True False Question 8 Most disorders of the autonomic nervous system reflect abnormalities of smooth muscle control. Answer ** True
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
False Question 9 Rami communicantes are designated white or grey to indicate whether or not the fibers passing through them are myelinated. Answer **True False Question 10 Splanchnic nerves pass through the abdominal aortic plexus. Answer **True False Question 11 The adrenal medulla is considered a "misplaced" sympathetic ganglion by some. Answer **True False Question 12 The blood vessels of the skin are one of the few areas of the body where the vessels are innervated by both the sympathetic and parasympathetic divisions. Answer True **False Question 13 The chain ganglion, like the dorsal root ganglion, contains soma from sensory neurons. Answer True **False Question 14 The gray rami communicantes consist of myelinated postganglionic fibers. Answer True **False Question 15 The structures that specifically exhibit vasomotor tone are mostly under sympathetic control. Answer **True False Question 16 Thermoregulatory responses to increased heat are mediated by the sympathetic nervous division. Answer True
Background image of page 2
False Question 17 Which of the following does not describe the ANS? Answer a system of motor neurons that innervates smooth and cardiac muscle and glands a system of motor neurons that innervates all muscle cells involuntary nervous system general visceral motor system Question 18 Which of the following statements is not true? Answer
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/25/2011 for the course BIO 151 taught by Professor Mr.b during the Spring '10 term at Wayne State University.

Page1 / 9

study guide 14 - Study guide 14 Question 1 Cranial nerves...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online