61. Sympathetic activation a.increases the heart rate b.increases the stroke vol

Question

61. Sympathetic activation
a.increases the heart rate
b.increases the stroke volume
c.both a and b
d.neither a nor b

62. When an arteriole double its diameter, the amount of blood flow through this arteriole
a.increases by 100%
b.increases by 400%
c.remains the same
d.increases by 1,600%

63. The kidneys serve to regulate the ____and ___of the internal environment.
a.volume; composition
b.volume; temperature
c.composition; temperature
d.nutrients; volume

64. The collecting ducts of the kidneys drain into
a.uterus
b.urethra
c.ureter
d.glomerulus

65. As blood passes through the kidneys, approximately __% of its volume is filtered. a.gO
b.SO
c.20
d.10

Explanation / Answer

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61. Sympathetic activation
c. both a and b


62. When an arteriole double its diameter, the amount of blood flow through this arteriole
c. remains the same (???)


63. The kidneys serve to regulate the ____and ___of the internal environment.
a. volume and composition

Waste are not a nutrients and yet they are regulated:)


64. The collecting ducts of the kidneys drain into
c. ureter


65. As blood passes through the kidneys, approximately __% of its volume is filtered.
c. 20%

Blood is filtered under pressure in the nephron.

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