Normal urine has a specific gravity that is ________ than the specific gravity of pure water; dehydration leads to a __________ in the specific gravity of urine
A.
higher; increase
B.
higher; decrease
C.
lower; decrease
D.
lower; increase
A
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The main function of serous fluid is to
A. lubricate and reduce friction between pleural membranes around the lung. B. improve adhesion of the lungs to the thoracic wall. C. facilitate the diffusion of oxygen across the respiratory membrane.
One hypothalamic hormone triggers a pituitary hormone to cause release of an adrenal hormone. Fill in the names of the hormones below. If a tumor in the adrenal cortex resulted in hypercortisolism, how would this affect the relative levels of hormone produced from each source? What type of reflex pathway is involved?
Brain capillaries are joined by ____________________ junctions
Fill in the blank(s) with correct word
Which of the following is not true of the nasal conchae?
A. They reduce turbulence inside the nasal cavity. B. They help cleanse the air. C. There are superior, middle, and inferior nasal conchae. D. They moisten the air. E. They help warm the air.