Which of the following descriptors regarding the trophoblast is false?
A) spreads into the endometrium
B) absorbs nutrients released by degenerating endometrial glands
C) has both a syncytial and cellular component
D) is derived from the inner cell mass
E) causes maternal blood vessels to break down
Answer: D
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The condition of shock is an example of failure of homeostatic mechanisms to compensate when one or more parts of the reflex control system are damaged.
Answer the following statement true (T) or false (F)
The nucleolus contains
A) RNA only. B) DNA only. C) RNA and protein. D) DNA and protein.
Prolactin is the only anterior pituitary hormone that does not exert a tropic action
Indicate whether the statement is true or false
When the arrector pili muscles contract,
A. the hair on your arms and legs begins to curl. B. the sweat glands empty their contents onto the surface of the skin. C. no change is noted on the skin surface. D. the body is able to lose heat. E. "goose bumps" form on the skin.