Melatonin is produced by the
A) thymus.
B) pineal gland.
C) kidneys.
D) skin.
E) heart.
Answer: B
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Aldosterone:
a. increases blood sodium levels b. decreases blood sodium levels c. increases blood potassium levels d. both B and C above
Which of the following areas of the adrenal gland is not matched correctly with its hormones or are they all matched correctly?
A. zona fasciculata: glucocorticoids B. zona glomerulosa: mineralocorticoids C. zona reticularis: gonadocorticoids D. adrenal medulla: cateholamines (epinephrine and norepinephrine) E. all are matched correctly
T cells release cytokines to stimulate the activation of
A) APCs. B) B cells. C) antibodies. D) immunoglobulins. E) plasma cells.
Which of the following is the correct order of events of coagulation? (1) thrombin converts fibrinogen to fibrin(2) fibrin strands form the clot(3) prothrombin activator is formed(4) prothrombin converted to thrombin
A. 1, 2, 3, 4 B. 4, 1, 2, 3 C. 2, 1, 4, 3 D. 3, 4, 1, 2