Norepinephrine stimulates cravings for carbohydrates, whereas endorphins stimulate cravings for proteins
Indicate whether the statement is true or false
TRUE
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Which of the following statements about colony-stimulating factors (CSFs) is FALSE?
A) CSFs regulate leukopoiesis and CSFs are made by epithelial cells. B) CSFs regulate leukopoiesis. C) CSFs are made by epithelial cells. D) CSFs are required to induce both cell division and cell maturation.
What is the principal estrogen secreted by the ovaries?
a. estrone b. estriol c. progesterone d. menstruum e. estradiol
The pyloric sphincter is located between the
a. esophagus and stomach. b. oral cavity and esophagus. c. large intestine and rectum. d. small intestine and large intestine. e. stomach and small intestine.
Why is the contraction strength of smooth muscle relatively independent of its resting length?
A. It does not have intercalated discs. B. It is regulated by a length-tension relationship. C. It gets nearly all of its Ca2+ from the extracellular fluid. D. It does not have sarcomeres. E. It is involuntary muscle.