Which of the following is true of sensory adaptation?
A) It is an increase in sensitivity in the presence of a constant stimulus.
B) It is the decline in activity along the afferent fiber after an initial strong response.
C) It is not dependent upon synaptic fatigue.
D) It occurs when the receptors of sensory neurons retain a constant level of activity.
E) None of the answers are correct.
B) It is the decline in activity along the afferent fiber after an initial strong response.
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Edema may occur when
A) the plasma concentration of protein is reduced. B) capillary hydrostatic pressure is elevated. C) capillary endothelium permeability goes up. D) the plasma concentration of protein is reduced and capillary endothelium permeability goes up. E) the plasma concentration of protein is reduced, capillary hydrostatic pressure is elevated, and the capillary endothelium permeability goes up.
Profuse sweating occurs during heat stroke as body temperature climbs rapidly
Indicate whether the statement is true or false
Macrophages are motile cells that crawl within tissues of the cells. Hepatocytes are stationary cells that are anchored in place within the tissue. Compared to hepatocytes, macrophages would likely have more of which cytoskeletal filament?
A. Microtubules B. Actin filaments C. Cilia D. Myosin filaments E. Intermediate filaments
A patient has been experiencing prolonged vomiting. Since she has lost many hydrogen ions, you predict her acid-base imbalance to be:
A) respiratory acidosis. B) respiratory alkalosis. C) metabolic acidosis. D) metabolic alkalosis.