An increase in the rate of action potentials from baroreceptors will lead to
A) increase in heart rate.
B) decrease in heart rate.
C) decrease in blood pressure.
D) both decrease in heart rate and decrease in blood pressure.
E) both increase in heart rate and decrease in blood pressure.
Answer: D
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Select the incorrect statement about peptide hormones
a. They include adrenal cortex hormones. b. Insulin is an example. c. They are stored within secretory granules. d. They are secreted from endocrine glands. e. They must bind to membrane receptors to invoke their actions.
Which of the following is not true of lymphatic capillaries?
A. They are lined with endothelial cells joined with tight junctions. B. They are closed at one end. C. Gaps between endothelial cells permit lymphocytes to pass. D. They are more permeable than blood capillaries. E. There is no continuous basement membrane in the wall.
Late one night you are leaving the science building during a snowstorm. As you approach your car, your right foot suddenly slips on a patch of ice. Your left leg immediately stiffens as you try to regain your balance. The reflex action you relied upon is a(n)
A. voluntary reflex. B. contralateral reflex. C. unilateral reflex. D. ipsilateral reflex. E. None of the choices is correct.
The opposite of extension is
A. inversion. B. protraction. C. elevation. D. pronation. E. flexion.