The most nutrient absorption takes place in the
A) duodenum and jejunum.
B) stomach and duodenum.
C) jejunum and ileum.
D) esophagus and stomach.
E) ileum and cecum.
Ans: A) duodenum and jejunum.
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Which of the following is not true regarding the right atrioventricular valve?
A) It has 3 cusps. B) It is also called the tricuspid valve. C) It prevents backflow of blood from the right ventricle into the right atrium. D) The valve closes when the right atrium contracts. E) The cusps provide one-way flow of blood.
An injury to the abdominopelvic cavity could include injury to the ________.
A. brain B. heart C. spleen D. sternum
Which of the following is a symptom of hyperthyroidism?
A. Organ enlargement B. Moon face C. Polydipsia D. Goiter
Which is NOT considered to be a primary function of the respiratory system?
A) vocalization B) gas exchange C) regulation of pH balance D) protection against pathogens E) regulation of water balance