Most sympathetic postganglionic fibers are called ____________________ fibers because they release noradrenaline, commonly known as norepinephrine.
Fill in the blank(s) with correct word
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Question 2) The arachnoid mater
a. is the innermost meningeal layer
b. a delicate, richly vascularized meningeal layer that is cobwebby in appearance
c. a tough, non-elastic membrane that covers the central nervous system
d. involved with the formation of CSF
e. is characterized by a, b, and d
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Question 3) The sympathetic nervous system originates in the ____________________ regions of the spinal cord and has short cholinergic preganglionic fibers and ____________________ adrenergic postganglionic fibers.
Fill in the blank(s) with correct word
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Question 4) During cerebrovascular accidents, glutamate released by damage neurons binds to ____ receptors of neighboring, healthy neurons, thus, initiating apoptosis.
a. acetylcholine
b. calcium
c. epinephrine
d. NMDA
e. serotonin
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Question 5) Parasympathetic preganglionic fibers are longer than sympathetic ____________________ fibers.
Fill in the blank(s) with correct word
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Question 6) Which statement is incorrect?
a. Afferent fibers enter the spinal cord through the ventral root.
b. The dorsal and ventral roots at each level of the spinal cord join to form a spinal nerve.
c. The spinal cord is not as long as the vertebral column.
d. The ventral horn contains cell bodies of motor neurons that supply skeletal muscles.
e. The white matter of the spinal cord is organized into ascending and descending tracts.
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Question 7) Long postganglionic fibers originate in the ____________________ chain and end on the ____________________ organs.
Fill in the blank(s) with correct word
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Question 8) In addition to producing cerebrospinal fluid, ependymal cells may
a. contribute to the formation of the blood-brain barrier
b. act as immune cells
c. function as neural stem cells
d. conduct neural impulses
e. produce myelin
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Question 9) The sympathetic ganglion chain is also called the sympathetic ____________________.
Fill in the blank(s) with correct word
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Question 10) Which glial cells possess phagocytic abilities?
a. astrocytes
b. ependymal cells
c. neurons
d. microglia
e. oligodendrocytes
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