Which of the following promotes vasodilation and a decrease in blood pressure?
A) sympathetic division of the autonomic nervous system
B) cold
C) alcohol
D) epinephrine
E) angiotensin II
C
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Insulin and glucagon are produced by the ________
A) Thymus B) Pancreas C) Adrenal cortex D) None of the above
One reason for the resting membrane potential (between -70mV and -90mV) is that
A) there are extra Na+ ions outside the plasma membrane, and extra Cl- ions inside the plasma membrane. B) Na+ ions diffuse down their concentration gradient to the outside of the cell. C) K+ ions diffuse down their concentration gradient to the outside the cell. D) large protein ions diffuse to immediately outside the plasma membrane. E) fewer Ca2+ ions inside the plasma membrane make the inside more negative.
Destruction of the amygdala would mostly affect which of the following?
A) Memory B) Expression of emotional feelings C) Recognition and identification of objects D) Cognition E) Awareness of objects
While working outside on a hot day the wind blows making you feel cooler. This is most likely due to heat loss through
a. conduction. b. convection. c. evaporation. d. radiation. e. metabolism.