The secretion of epinephrine and norepinephrine is controlled by ________.
A. a change of blood glucose level
B. action potentials for the sympathetic part of the autonomic division
C. a releasing hormone from the pituitary gland
D. action potentials for the parasympathetic part of the autonomic division
Answer: B
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The highest density of lymph nodes can be found ________.
A. in the arms and legs B. in the brain C. at the locations where lymphatic collecting vessels converge D. in the intestines
Autoimmune diseases are more common in older people.
Answer the following statement true (T) or false (F)
Which of the following muscles is a flexor of the thigh?
A) vastus lateralis B) adductor magnus C) gluteus maximus D) tibialis posterior
The energy equivalent of O2 is
a. 4.8 kilocalories of energy liberated per liter of O2 consumed. b. used to indirectly measure the metabolic rate. c. the energy required to raise 1 gm of H2O 1°C. d. both (a) and (b) above. e. all of these answers.