A person whose genetic makeup makes him or her a better marathon runner than a sprinter probably has more ________ in his or her leg muscles.
A) fast fibers
B) intermediate fibers
C) slow fibers
D) dark fibers
E) red fibers
C) slow fibers
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Which of the following is not true of the gastrointestinal tract?
a. It is about 9 feet long in adults. b. It is also called the alimentary canal. c. The material in the gastrointestinal tract is considered to be outside the body. d. All of the above are true of the gastrointestinal tract.
Which group of antiulcer medications blocks receptors on parietal cells in the stomach, thereby reducing gastric acid secretion?
a. mucosal protectives b. H2-receptor antagonists c. systemic antacids d. nonsystemic antacids
The start of each gene begins with a(n) ________ segment
A) beginning B) start C) initiator D) control E) converter
Which tissue type consists of a sheet of cells that covers a body surface or lines a body cavity?
a. muscle tissue b. connective tissue c. epithelial tissue d. nervous tissue