List the three stages of an action potential in a cardiac muscle cell
A) rapid depolarization, plateau, and hyperpolarization
B) plateau, repolarization, and hyperpolarization
C) slow depolarization, plateau, and hyperpolarization
D) rapid depolarization, repolarization, hyperpolarization
E) rapid depolarization, plateau, and repolarization
Answer: E
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A) temporal summation. B) graded potentials. C) postsynaptic integration. D) spatial summation. E) EPSPs.
Which of the following are true of the axial musculature?
A) It arises, but does not insert, on the axial skeleton. B) It makes up 40 percent of the body musculature. C) It stabilizes the pectoral and pelvic girdles. D) It arises on the axial skeleton. E) It arises elsewhere, but inserts on the axial skeleton.
Blood is a mixture of fluid and insoluble particles that are large enough to be visible, such as blood cells and platelets. Therefore, blood is a __________.
A. suspension B. solution C. solvent D. colloid
Myocardial infarction can lead to what type of shock?
A. Neurogenic B. Cardiogenic C. Venous pooling (vascular) D. Hypovolemic E. Obstructed venous return