Aldosterone is a steroid
Indicate whether the statement is true or false.
TRUE
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Which of the following statements is NOT correct regarding the motor units and their activation?
A) A motor unit in muscles of gross movement can have thousands of muscle cells. B) The metabolic capacity of muscle fibers within a motor unit can be altered. C) At its peak intensity, a contractile stimulus will activate muscle fibers that are easily fatigued. D) A weak contractile stimulus activates fast-twitch motor units. E) All muscle fibers in a single motor unit are of the same fiber type.
Hemophilia, color blindness, and Duchenne muscular dystrophy occur more often in males than females. Why?
A) These diseases develop due to the lack of estrogen and progesterone. B) Since there is no matching gene on the Y chromosome, the traits are expressed more readily in males. C) Testis-determining factor (TDF) causes these diseases. D) These traits are carried only on the X chromosome and since there is no matching gene on the Y chromosome, the traits are expressed more readily in males. E) These traits are carried only on the X chromosome.
The pituitary gland can be divided into __________ major functional areas.
one four two three Seven
Which is not correct regarding the stomach?
A. It is located in the left upper quadrant of the abdomen. B. It has a third muscle layer, the oblique layer, not found elsewhere in the GI tract. C. Its funnel-shaped terminal portion is called the fundus. D. It participates in both mechanical and chemical digestion. E. It is shaped like the letter J.