The sensation of thirst results from
A. stimulation of baroreceptors.
B. a decrease in the osmolality of the extracellular fluid.
C. hypertension (increased blood pressure).
D. stimulation of osmoreceptor cells in the hypothalamus.
E. an increase in the plasma volume.
Answer: D
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This figure shows a lateral view of the right thigh. What muscle does number 1 indicate?
A. Gluteus maximus B. Gluteus medius C. Psoas major D. Gracilis E. Vastus lateralis
Intercellular canals are typical for:
(a) goblet cells (b) parietal cells (c) paneth cells (d) main cells
The kidneys do not play a vital role in which of these functions?
a. maintaining blood pressure b. stimulating red blood cell production c. acid-base balance d. the kidney plays a vital role in all of the above functions
What is the role of reticular cells in the bone marrow?
A. They destroy malformed blood cells. B. They secrete colony-stimulating factors. C. They produce antibodies. D. They produce thymosin. E. They give rise to all formed elements of the blood.