Discontinuous capillaries form large channels known as sinusoids that are 100 times wider than traditional capillaries.
a. True
b. False
Indicate whether the statement is true or false
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Question 2) Which of the following is the proper sequence of retinal processing?
a. rods and cones->ganglion cells->bipolar cells
b. rods and cones->bipolar cells->ganglion cells
c. ganglion cells->bipolar cells->rods and cones
d. ganglion cells->rods and cones->bipolar cells
e. bipolar cells->ganglion cells->rods and cones
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Question 3) Vasopressin is primarily involved in maintaining water balance by regulating the amount of water the kidneys retain for the body during urine formation.
a. True
b. False
Indicate whether the statement is true or false
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Question 4) Incoming visual information is relayed to the appropriate cortical tissue by
a. the ganglion cells
b. the lateral geniculate nuclei
c. thalamus
d. both a and b
e. both b and c
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Question 5) Arterioles have no significant parasympathetic innervation, with the exception of the abundant parasympathetic vasodilator supply to the arterioles of the genitalia.
a. True
b. False
Indicate whether the statement is true or false
(
Question 6) In the visual pathway,
a. fibers from the medial side of a retina pass to the opposite side of the brain
b. fibers from the lateral side of a retina pass to the opposite side of the brain
c. fibers from the medial side of the retina pass to the same side of the brain
d. both a and b are true
e. both b and c are true
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Question 7) When shear stress increases, endothelial cells release nitric oxide, which diffuses to the underlying smooth muscle and promotes vasodilation.
a. True
b. False
Indicate whether the statement is true or false
(
Question 8) The middle layer of the retina contains
a. bipolar neurons
b. convex cells
c. ganglion cells
d. hair cells
e. rods and cones
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Question 9) Decreased blood flow in response to enhanced tissue activity is called active hyperemia.
a. True
b. False
Indicate whether the statement is true or false
(
Question 10) An optic track carries information from
a. the lateral half of one retina and the medial half of the other retina
b. the lateral halves of both retinas
c. the medial halves of both retinas
d. an entire retina of one eye
e. half of the retina of one eye and the entire retina of the other eye
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