White blood cells are called ____________________.?
Fill in the blank(s) with correct word
leukocytes
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The plantar surface is the
A. area in front of the elbow. B. chest area. C. lower back. D. bottom of foot. E. forearm.
Of the millions of sperm deposited into the vagina during intercourse, only a few hundred reach the secondary oocyte. What happens to the rest?
A. Some never become motile. B. They may become disoriented and lose direction. C. They may be destroyed by the acidic environment of the female tract. D. Many leak out of the vagina. E. All of the choices are correct.
Regarding fertilization, which of the following events happens first?
A. Formation of a fertilization membrane B. The fast block to polyspermy C. The slow block to polyspermy D. The cortical reaction E. The acrosomal reaction
When the popliteal vein reaches the popliteal fossa, it becomes the ________ vein
A) femoral B) posterior tibial C) internal iliac D) external iliac E) fibular