Which example best illustrates a feedforward mechanism?
a. The release of thyroxin from the thyroid
b. The production of red blood cells
c. The replacement of skin cells
d. The excretion of bile from the gall bladder
e. The secretion of insulin following a meal
e
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The medulla of a lymph node contains ________ lymphocytes and macrophages
A) cytotoxic T B) medullary C) NK D) B E) cordal
"Staircase" and "warming-up effect" refer to ___________, an increased muscle response to a constant stimulus
A. wave summation B. treppe C. multiple motor unit summation D. incomplete tetany E. isotony
The immediate response to blood vessel injury is clotting
Indicate whether the statement is true or false
The presence of certain hormones during pregnancy stimulate the development of the milk-producing structures of the breast known as
A. lactiferous sinuses. B. alveoli. C. areolae. D. septa.