Other than at the optic disc, what is the only point where the retina is attached to the rest of the eyeball?
A. The cupula
B. The suspensory ligament
C. The ora serrata
D. The lens
E. The crista ampullaris
Answer: C
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The diameter of many blood vessels is controlled exclusively by the ________ nervous system, and decreases in the activity of this system result in _________
A. parasympathetic, vasoconstriction B. parasympathetic, vasodilation C. somatic, vasoconstriction. D. sympathetic, vasoconstriction. E. sympathetic, vasodilation.
Nitrogenous waste in the blood is the result of:
a. fat catabolism b. protein catabolism c. carbohydrate catabolism d. nucleic acid catabolism
Which statement describes a benign tumor?
A. Benign tumors do not spread to other areas of the body. B. Benign tumors do not cause tissue or organ damage. C. Benign tumors spread to other areas of the body. D. Benign tumors are cancerous.
Which structure drains the milk produced by the secretory cells in the breast?
A. Lactiferous sinuses B. Lactiferous ducts C. Myoepithelial cells D. Lobules