The ovarian cycle is stimulated when the anterior pituitary secretes ____
a. estrogen
b. progesterone
c. testosterone
d. follicle-stimulating hormone
d
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The primary function of pulmonary ventilation is to maintain adequate __________.
a. alveolar ventilation b. air in the anatomic dead space c. vital capacity d. pulmonary surfactant
The region of the brain that is the most important control area for homeostatic regulation of the internal environment is:
A. the thalamus. B. the hippocampus. C. the cerebrum. D. the cerebellum. E. the hypothalamus.
Which function does the circulatory system share with the heart?
A. directs blood flow to tissues B. exchanges nutrients and wastes with cells C. transports hormones to all areas of the body D. regulates blood pressure
Prostatic enlargement in older men is often due to the activity of what enzyme that acts on testosterone?
A. Epididymal sulfhydryl oxidase B. Tyrosine hydroxylase C. Aromatase D. 5-alpha reductase