During thyroid hormone secretion,
a. the follicular cells phagocytize a piece of colloid
b. T4 and T3 are removed from thyroglobulin by lysosomal enzymes in the follicular cell; then they diffuse out of the cell and into the blood
c. T4 and T3 are secreted by exocytosis of the colloid that has been internalized by the follicular cells
d. both a and b occur
e. both b and c occur
D
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Water intoxication results from
a) Dilute body fluids b) Decrease in the osmolarity of interstitial fluids c) Osmosis of water from ICF to ECF d) Dilute body fluids and a decrease in the osmolarity of interstitial fluids e) Decrease in water intake
The opposite of lateral is ______
Fill in the blank(s) with correct word
Cell shrinking, also known as crenation, occurs when a cell is placed into a(n) ________ solution.
A. exergonic B. hypertonic C. isotonic D. hypotonic
Why don't platelets form plugs in undamaged vessels?
A. Platelets aren't formed until vessel damage occurs. B. Only contact of platelets with exposed collagen fibers and von Willebrand factor causes them to be sticky and form plugs. C. Plugs do form, but are removed by macrophages. D. Platelets don't form plugs, it is the megakaryocytes that form the plugs.