Too much thyroxine results in a condition called:
a. hyperthyroidism
b. hypothyroidism
c. premenstrual syndrome
d. an adrenal rush
Ans: a. hyperthyroidism
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Veins of the brain empty into
A) coronary sinuses. B) dural sinuses. C) the cerebral arterial circle. D) external jugular veins. E) vertebral veins.
Febrile and __________ are both terms for fever
Fill in the blank(s) with correct word
What is true of the semilunar valves?
A) They are both on the right side of the heart. B) They lie between the atria and the ventricular chambers on each side of the heart. C) They lie between ventricles and the large arteries that leave the ventricles on each side of the heart. D) They are both on the left side of the heart.
Renin hydrolyzes angiotensinogen, which is released from the ________, to form angiotensin I
A) spleen B) liver C) lungs D) kidneys E) heart