For the repolarization phase of an SA nodal cell action potential,
A. calcium channels open and sodium channels close.
B. sodium and potassium channels open.
C. calcium and potassium channels close.
D. sodium and chloride channels open.
E. calcium channels close and potassium channels open.
Answer: E
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The heart is located
A. inside the visceral pericardium but outside the parietal pericardium B. inside the parietal pericardium but outside the visceral pericardium C. outside the visceral pericardium and outside the parietal pericardium D. inside the visceral pericardium and inside the parietal pericardiuma
If the glomerular filtration rate decreased, one would expect to see a corresponding ________ clearance rate.
A. increase plasma urea B. decrease plasma creatinine C. decrease plasma glucose D. increase plasma protein
These receptor cells provide for the sense of taste
a) Olfactory hair cells b) Pacinian corpuscles c) Basal stem cells d) Hair cells e) Gustatory cells
After an impulse, the __________ refractory period is the time when it is possible to initiate another impulse, but it requires a stronger than usual stimulus
Indicate whether this statement is true or false.