Select the correct statement about the regulation of gastric secretion
A) Gastric secretion can be stimulated before food has entered the mouth.
B) The presence of food in the stomach prevents hormonal control of gastric secretion.
C) Vagus stimulation of the stomach results in decreased secretion of gastric juice.
D) Gastric secretion is enhanced by very low pH (below a pH of 2).
A
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Congenital hemolytic anemia is
A. when destruction of erythrocytes is more rapid than normal. B. when there is an inherited anemia associated with a defect in iron uptake. C. caused by a failure of the body to absorb Vitamin B12. D. characterized by a large number of immature, nucleated cells. E. characterized by significantly decreased formation of erythrocytes and hemoglobin due to defective red bone marrow.
Which of the following terms describes the location of the center of rotation at a joint at a given instant in time?
A. precise center B. exact center C. instant center D. none of the above
Which of the following statements is true regarding parasympathetic tone?
A. It affects heart rate only after myocardial infarction. B. It holds the resting heart rate below its intrinsic rate. C. It accelerates the resting heart rate above its intrinsic rate. D. It might increase or decrease heart rate depending on the situation. E. It does not affect heart rate.
The portion of the brain that regulates body temperature is the
A. cerebral cortex. B. hypothalamus. C. medulla oblongata. D. pons. E. hypophysis.