The most toxic of our metabolic wastes are nitrogenous wastes.
Answer the following statement true (T) or false (F)
True
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Which brain area is considered to be a key integrating center for homeostasis?
A) pituitary gland B) brain stem C) hypothalamus D) thalamus E) medulla
The hormone that directly controls water excretion by the kidneys is
A) ADH. B) ANP. C) aldosterone. D) epinephrine. E) angiotensin.
Answer the following statements true (T) or false (F)
1. The evaporation method of heat loss from the blood occurs by the absorption of heat by water vaporization. 2. The convection method of heat loss from the blood occurs by the transfer of heat energy to the skin and then to the external environment. 3. Shivering is a heat-generating activity of the body. 4. “Use of food” is a good phrase to describe metabolism. 5. Before food can be assimilated, it must be digested.
Which of the following describes an antiport system on the basal side of renal tubule cells?
A) It exchanges K+ for Na+. B) It transports CO2 from the blood into the tubule cells. C) It exchanges H+ for Na+. D) It transports bicarbonate from the tubular fluid back into the tubule cells. E) It transports H+ in both directions across the epithelium.