Estrogen stimulates the up-regulation of progesterone receptors in the uterus to prime the uterus to respond to progesterone. what type of hormone interaction is this?
a) antagonistic
b) permissive
c) complementary
d) synergistic
Answer: b) permissive
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The aortic arch sweeps
A. from right to left in a posterior direction. B. from left to right in a posterior direction. C. from right to left in an anterior direction. D. from left to right in an anterior direction.
In the male, which muscle ejects urine or semen, compresses the base of the penis, and helps in formation of an erection?
A. Iliococcygeus B. Superficial transverse perineal muscle C. External urethral sphincter D. Bulbospongiosus E. Pubococcygeus
What are some risk factors for developing breast cancer?
What will be an ideal response?
Pacemaker cells of the SA node depolarize about
A) 60-70 times per minute. B) 40-50 times per minute. C) 80-100 times per minute. D) 120-140 times per minute. E) None of the answers are correct.