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List the phases of contractile cardiac muscle action potentials and explain the ion movements that occur in each phase. Contrast the initiation of action potentials in cardiac contractile cells, and …
The characteristic shape of the cardiac action potential is a result of distinct sodium, calcium and potassium channels. Genetic variants affecting these channels have been linked to numerous …
Learn about cardiac muscle action potential, ionic conductance, threshold, excitability, and irritability. College-level physiology notes.
Basic cardiac action potential Unlike the action potential in skeletal muscle cells, the cardiac action potential is not initiated by nervous activity. Instead, it arises from a group of specialized …
between incoming calcium and outgoing potassium. The potassium continues to leak out via the outward-rectifying potassium channels, and the calcium continues to leak in via the L-type …
Cardiac Muscle Action Potential CARDIAC MUSCLE CELL ACTION POTENTIAL PHASE 0: DEPOLARIZATION Sodium rapidly into cell (calcium slowly into cell)
Nodal Cell Action Potential – Electrical System You have likely studied the action potential profiles of neurons in your previous Human Physiology classes. Studying the action potential profiles …
Cardiac Muscle contraction Vs. Skeletal Muscle. What can be measured?
Cardiac action potentials differ from the APs found in other areas of the body. Typical neural AP duration is around 1ms and those of skeletal muscle are roughly 2-5ms, whereas cardiac …
Describe the different phases of the cardiac action potential and their significance. The cardiac action potential consists of several distinct phases: rapid depolarization, a plateau phase, and …
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