Which of the following tissues that can be formed by embryonic stem cells is of particular interest in
stem cell research?
A. muscle D. liver
B. bone E. blood
C. skin
A
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A patient comes to the emergency room suffering from severe dehydration. You are shocked to hear an orderly suggest, “We should just give him an IV of water to speed up his rehydration!” You quickly intervene, knowing this could cause grave harm. Why?
a. An IV of pure water would increase the tonicity of the blood so much that the red blood cells would shrivel from water loss. b. Pure water is known to be toxic and must be heavily diluted before given to patients. c. An IV of pure water would dilute the solute concentration of the plasma so much that the red blood cells would take on too much water through osmosis and burst. d. Pure water would make the cells and the plasma isotonic, and the patient would not rehydrate at all.
The systolic pressure for a normal young adult would be under
a. 60 mm Hg. b. 80 mm Hg. c. 100 mm Hg. d. 120 mm Hg. e. 140 mm Hg.
Municipal water treated with chlorine compounds contains
A) no viruses. B) no bacteria at all. C) no endospores. D) no cysts. E) a decreased microbial load.
Which of the following bones do not contain a sinus?
What will be an ideal response?