Water reabsorption
a. occurs passively by osmosis in the proximal tubule.
b. is under the control of vasopressin in the distal and collecting tubules.
c. occurs by active transport in the distal and collecting tubules.
d. both (a) and (b) above.
e. all of these answers.
D
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Thyroid hormones
a) Aid in glycogenesis b) Inhibit gluconeogensis c) Inhibit lipogenesis d) Promote glycolysis e) Promote gluconeogenesis
The first heart sound ("lubb") is produced as the atrioventricular valves ________ and the semilunar valves ________.
A) open; close B) close; open C) open; open D) close; close E) The actions of the valves do not contribute to the heart sounds.
Male infertility (sterility) refers to ________
A) low levels of testosterone B) a lack of seminal fluid during ejaculation C) the inability to fertilize an egg D) low sperm count E) the inability to have an erection
The two hormones released from the posterior pituitary are
A. oxytocin and antidiuretic hormone. B. prolactin and vasopressin. C. follicle-stimulating hormone and luteinizing hormone. D. thyrotropin-releasing hormone and corticotropin-releasing hormone. E. prolactin and growth hormone.