Atrio ventricular node is located at __________(a) upper part of the heart wall between the two atrial(b) lower part of the heart wall above the two atrial(c) lower part of the heart wall between the two atrial(d) upper part of the heart wall above the two atrialI had been asked this question in an internship interview.I'm obligated to ask this question of Electrodes for ECG topic in portion Bioelectric Signal and Electrodes of Biomedical Instrumentation

Atrio ventricular node is located at __________(a) upper part of the h

1.	Atrio ventricular node is located at __________(a) upper part of the heart wall between the two atrial(b) lower part of the heart wall above the two atrial(c) lower part of the heart wall between the two atrial(d) upper part of the heart wall above the two atrialI had been asked this question in an internship interview.I'm obligated to ask this question of Electrodes for ECG topic in portion Bioelectric Signal and Electrodes of Biomedical Instrumentation
Answer» RIGHT choice is (c) lower part of the heart wall between the TWO atrial To explain I would say: The AV node is located in the lower part of the wall between the two atria. The AV node DELAYS the spread of excitation for about 0.12s, due to the presence of a fibrous barrier of non-excitable cells that effectively prevent its propagation from continuing BEYOND the limits of stria.

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