The cells that make up the human body are called ________
A) Eukaryotic cells B) Mitotic cells
C) Chromosomal cells D) Meiotic cells
A
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Myogenic autoregulation means that
A) stretched smooth muscle in a blood vessel constricts reflexively. B) increased blood pressure in a vessel triggers relaxation in that vessel and blood vessel diameter is adjusted by centers in the brain through monitoring blood pressure in areas throughout the body. C) blood vessel diameter is adjusted by centers in the brain through monitoring blood pressure in areas throughout the body. D) stretched smooth muscle in a blood vessel constricts reflexively and blood vessel diameter is adjusted by centers in the brain through monitoring blood pressure in areas throughout the body. E) increased blood pressure in a vessel triggers relaxation in that vessel.
The thirst mechanism is invoked when
a. plasma osmolarity increases b. plasma osmolarity decreases c. hypothalamic osmoreceptors are activated d. a and c occur e. b and c occur
Smooth muscle cells tend to be shorter but thicker than skeletal muscle cells.
Answer the following statement true (T) or false (F)
White blood cells digest other cells and so would be expected to
A. have mitochondria to energize them. B. have large numbers of lysosomes. C. possess cilia on their surfaces so they can move quickly. D. expel their nuclei to make room for all of the cells they eat. E. excrete excess salt as a result of all this eating.