Where is the mammalian heart beat initiated? A. Atrioventricular node B. Left atrium C. Purkyne tissue D.

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Where is the mammalian heart beat initiated?

A. Atrioventricular node

B. Left atrium

C. Purkyne tissue

D. Sinoatrial node

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Cambridge International AS And A Level Biology

ISBN: 9781107636828

4th Edition

Authors: Mary Jones, Richard Fosbery, Jennifer Gregory, Dennis Taylor

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Question Posted: Sep 01, 2021 01:51 AM

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Where is the mammalian heart beat initiated? A. Atrioventricular node B. Left atrium C. Purkyne tissue D.

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Answer D Sinoatrial node Explanation The SinoAtrial node is the natural pacemak...View the full answer

Cambridge International AS And A Level Biology

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