A marked decrease in urine output is called:
A) anuria.
B) oliguria.
C) dysuria.
D) polyuria.
Answer: B) oliguria.
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The function of the Cowper’s glands is to
A. produce 60% of the seminal fluid. B. prevent urine from mixing with semen. C. contribute to the seminal fluid and to lubricate the end of the penis during intercourse. D. none of the above
Hormones produced by the thyroid include
a. calcitonin b. thyroxine c. PTH d. a and b e. b and c
During inspiration, contraction of the diaphragm causes the volume of Mr. Jones' thoracic cavity to increase and the pleural pressure to decrease. The pressure in his alveoli (Palv) will
A. does not change. B. become greater than atmospheric pressure (PB), causing air to move out of his lungs. C. decrease below atmospheric pressure (PB), causing air to move out of his lungs. D. become greater than atmospheric pressure (PB), causing air to move into his lungs. E. decrease below atmospheric pressure (PB), causing air to move into his lungs.
Why does breathing continue to be rapid and deep for a time after heavy exercise?A) Extra oxygen is needed to restore muscle creatine phosphate concentration.B) The respiratory system is slow to increase and decrease its function before and after exercise, which is why it takes awhile for breathing to slow down.C) Lactic acid that builds up during heavy exercise must be exhaled into the air, so heavy breathing must continue for awhile after exercise to eliminate it.D) The ATP level in muscle cells falls drastically during heavy exercise, and extra oxygen is needed to restore it.E) The extra ventilation is not needed to replenish energy stores in muscle fibers, but rather simply to restore the blood pH to normal after the production of excess lactic acid during the exercise.
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