As a stereocilium bends, the tip link pulls ______ gates open
A. Na+
B. Ca2+
C. Cl-
D. K+
D
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The stimulus that directly triggers release of ANP is
A. decreased pressure detected by baroreceptors in the aorta and carotid arteries. B. increased stretch of the heart atria. C. increased saltiness in the cerebrospinal fluid bathing the hypothalamus of the brain. D. increased saltiness of tubular fluid in the proximal convoluted tubule.
The volume of air that enters the lungs during forced maximal inspiration is the
A) inspiratory reserve volume. B) vital capacity. C) expiratory reserve volume. D) tidal volume.
The blood vessels that are under the greatest pressure are the
A. arterioles. B. capillaries. C. elastic arteries. D. veins. E. venules.
The plasma clearance rate for a secreted substance is always less than the glomerular filtration rate
a. True b. False Indicate whether the statement is true or false