pH
A. increases with acidity.
B. is measured on a scale of 0 to 10.
C. is a measure of the hydrogen ion concentration.
D. reflects sodium content of body fluids.
E. is not related to amounts of carbon dioxide in the body.
C
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A champion weight lifter picks up a pencil. A minute later she picks up a sixty-pound object using the same muscles. What was different about the two movements?
Also, what are the differences (at the cellular and molecular levels) in her arm muscles as compared to those of a weaker, untrained person? What will be an ideal response?
Which of the following cells has up to 50 nuclei and a ruffled border?
A. Osteoblast B. Osteoclast C. Osteocyte D. Macrophage E. Osteogenic cell
Blood is supplied to the muscle of the heart through the
A) cardiac sinus. B) coronary arteries. C) conus arteriosus. D) pulmonary arteries. E) interventricular septum.
Branches of the subclavian arteries carry blood on the way to the brain, neck and shoulder muscles, and mammary glands
Indicate whether this statement is true or false.