Skin wrinkle and sagging is caused by
A) UV radiation.
B) hormonal changes.
C) aging.
D) all of the choices.
E) none of the choices.
Answer: D
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When hyperplasia proceeds out of control, a tumor may develop. This condition is termed
A. atrophy. B. hypertrophy. C. metaplasia. D. neoplasia. E. fibrosis.
Which of the following is not a recognized function of skeletal muscle?
A) produce movement B) maintain posture C) maintain body temperature D) guard body entrances and exits E) controlled involuntarily
Answer the following statements true (T) or false (F)
1. The prone position is a position in which the body is lying face up. 2. The supine position is a position in which the body is lying face up. 3. Superior means toward the head. 4. Because humans walk upright, superior and superficial mean the same thing. 5. Anterior and proximal are opposite terms.
Occasionally three polar bodies are found clinging to the mature ovum. One came from an unequal division of the ovum, but from where did the other two arise?
A) There were originally four polar bodies and one disappeared. B) One is an undeveloped primary oocyte that failed to mature. C) The first polar body has also divided to produce two polar bodies. D) What you really see are two polar bodies and the sperm that will fertilize the egg.