Why is the optic disc sometimes called the blind spot of the eye?
A. There are no blood vessels there.
B. There are no nerve fibers there.
C. There are rods there, but no cones, so color vision is not possible in that area.
D. There are no rods and cones there.
E. There are cones there, but no rods, so black and white vision is not possible in that area.
Answer: D
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A) vasodilation in skeletal muscle and vasoconstriction in viscera. B) vasoconstriction only. C) vasodilation only. D) vasoconstriction in skeletal muscle and vasodilation in viscera.
____________________ is the inability to prevent the discharge of urine
Fill in the blank(s) with correct word
A broad flat tendon is called:
a. deep fascia b. an aponeurosis c. a retinaculum d. a stroma
When the embryonic mass of cells develops an internal cavity, the mass of cells is called a(n)
A. zygote. B. morula. C. blastocyst. D. embryonic disc. E. trophoblast.