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PhysioEX Chapter 6 exercise 1 Practice Questions and Answers
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PhysioEX Chapter 6 exercise 1 Practice Questions and Answers
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©SOPHIABENNETT@2024-2025 Monday, August 26, 2024 6:09 AMThompson Rivers University (TRU)
PhysioEX Chapter 6 exercise 1 Practice
Questions and Answers
The cardiac muscle is capable of which of the following? - Answer✔️✔️-
autorhythmicity
Phase 2 of the cardiac action potential, when the calcium channels remain
open and potassium channels are closed, is
called the - Answer✔️✔️-plateau phase
Which of the following is true of the cardiac action potential? - Answer✔️✔️-
The cardiac action potential is longer than the skeletal muscle action
potential.
The main anatomical difference between the frog heart and the human
heart is that the frog heart has - Answer✔️✔️-a single, fused ventricle.
The amplitude of the ventricular systole did not change with the more
frequent stimulation because - Answer✔️✔️-a new contraction could not
begin until the relaxation phase
Which of the following do you think contribute to the inability of cardiac
muscle to be tetanized? - Answer✔️✔️-the long refractory period of the
cardiac action potential
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