Following ejaculation, a male may typically experience a period of time, called ________, during which stimulation does not bring about an erection.
A) orgasm
B) post-ejaculatory trauma syndrome
C) a refractory period
D) spermatogenesis time
E) the plateau phase
Answer: C) a refractory period
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The adult heart is roughly the size of
A) the liver. B) a man's clenched fist. C) the gallbladder. D) the hand of a 10-year-old. E) the brain.
The _____________ is the innermost connective tissue layer that surrounds each muscle fiber
Fill in the blank with correct word.
What normally serves as the pacemaker of the entire heart?
A) atrioventricular (AV) bundle B) atrioventricular (AV) node C) sinoatrial (SA) node D) Purkinje fiber system
Which is TRUE about the maturation of ovarian follicles?
A. Growing follicles produce estrogen, which further stimulates follicle maturation. B. Theca cells produce estrogen, which is converted to the androgens that stimulate follicle maturation. C. Granulosa cells produce androgens, which stimulates follicle maturation. D. Follicle maturation is stimulated when FSH binds to theca cells and LH binds to granulosa cells. E. On day 1 of the cycle, growing follicles have both FSH and LH receptors on granulosa cells.