When heart rate increases, the time spent in
A) systole increases.
B) diastole increases.
C) all phases decreases but most of the decrease is during systole.
D) all phases decreases but most of the decrease is during diastole.
E) isovolumetric contraction increases.
D
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Pregnant women are encouraged to get flu shots so that the maternal ________ can pass through the placenta to the fetus
A) IgG B) IgE C) IgD D) IgM E) IgA
A) increasing the permeability to K+ and decreasing the permeability to Ca2+.
A) increasing the permeability to K+ and decreasing the permeability to Ca2+. B) just increasing the permeability to Ca2+. C) just increasing ion influx, thus increasing the rate of depolarization. D) just decreasing the permeability to Ca2+. E) just increasing the permeability to K+.
Plasmin is a plasma protein produced by the spleen and present in the blood in an inactive precursor form, protoplasmin
a. True b. False Indicate whether the statement is true or false
The membranous network that wraps around myofibrils and holds relatively high concentrations of calcium is known as the
A. T-tubule. B. sarcomere. C. sarcolemma. D. sarcoplasmic reticulum. E. Golgi body.