What is myogenic conduction in the context of the heart's impulse conduction?
Understand the Problem
The question is asking for an explanation of myogenic conduction within the context of how impulses are conducted in the heart. It specifically requests to identify the correct description or characteristic of myogenic conduction from the provided options.
Answer
Myogenic conduction is the heart's ability to transmit electrical impulses through muscle cells, enabling coordinated contractions.
Myogenic conduction in the heart refers to the direct transmission of electrical impulses through the heart muscle cells without the need for external nervous input. This intrinsic property allows the heart to maintain rhythmic and coordinated contractions, facilitated by specialized cardiac muscle cells that initiate and propagate electrical signals.
Answer for screen readers
Myogenic conduction in the heart refers to the direct transmission of electrical impulses through the heart muscle cells without the need for external nervous input. This intrinsic property allows the heart to maintain rhythmic and coordinated contractions, facilitated by specialized cardiac muscle cells that initiate and propagate electrical signals.
More Information
The heart's ability to conduct impulses myogenically is crucial for its self-regulating pacemaker function. This is why the heart continues to beat even when isolated from the body's other systems.
Sources
- Cardiac conduction system - Health Video - MedlinePlus - medlineplus.gov
- Heart Conduction System (Cardiac Conduction) - Cleveland Clinic - my.clevelandclinic.org
- Mechanisms of cardiac conduction: a history of revisions - PMC - pmc.ncbi.nlm.nih.gov
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