Which of the following is the correct order of small intestine regions that food passes through during digestion?
A. Ileum - duodenum - jejunum
B. Ileum - jejunum - duodenum
C. Jejunum - duodenum - ileum
D. Duodenum - ileum - jejunum
E. Duodenum - jejunum - ileum
Answer: E
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Explain the drop in blood pressure that occurs when one goes from lying down to standing up
A. The heart rate decreases. This is due to the baroreceptor reflex reducing sympathetic output to the SA node. B. An increase in afterload causes a drop in stroke volume, cardiac output, and blood pressure. C. An increase in preload causes a drop in stroke volume, cardiac output, and blood pressure. D. Venous compliance allows blood to pool in the legs, decreasing venous return. This causes a drop in cardiac output and blood pressure.
Identify the hormone secreted during pregnancy that cause the ducts of the mammary glands to grow and branch when in high levels
A. Estrogen B. Progesterone C. Prolactin D. Growth hormone
Decrease in alveolar oxygen concentration causes
a. vasoconstriction of the pulmonary arteriole. b. relaxation of bronchiolar smooth muscle. c. vasodilation of the pulmonary arteriole. d. vasoconstriction of the pulmonary arteriole and vasodilation of the pulmonary arteriole. e. vasoconstriction of the pulmonary arteriole and relaxation of bronchiolar smooth muscle.
Endocrine controls:
a. occur quickly and last for short periods of time b. are similar in onset and duration to CNS controls c. require duration rather than speed d. are targeted at precise organs e. none of the above