Gonadotropin-releasing hormone (GnRH) regulates the release of
A. prolactin and oxytocin.
B. follicle-stimulating hormone and luteinizing hormone.
C. estrogen and testosterone.
D. progesterone and prolactin.
E. thyrotropin-releasing hormone and thyroid-stimulating hormone.
B
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Which is one of the major inhibitory neurotransmittors in the CNS?
A. Glutamate B. Dopamine C. Norepinephrine D. Gamma-aminobutyric acid (GABA) E. Beta-endorphin
Sarah is a sprinter who specializes in quick and powerful bursts of speed followed by periods of rest. Priya is a marathon runner who specializes in long, steady runs. Compared to Priya, Sarah is likely to have
A. leg muscles with a larger diameter. B. leg muscles with a smaller diameter. C. lower concentrations of glycolytic enzymes in her leg muscles. D. hypertrophy of type I muscle fibers. E. a higher density of capillaries in her leg muscles.
An average value for vital capacity in healthy young adult males is ________
A) 3000 ml B) 4800 ml C) 6000 ml D) 500 ml
If you exercise with enough intensity that the blood pH is changed, you have exceeded the ________.
A. aerobic threshold B. anaerobic threshold C. pH threshold D. acidity point E. base point