Where is the mammalian heart beat initiated? A. Atrioventricular node B. Left atrium C. Purkyne tissue D.
Question:
Where is the mammalian heart beat initiated?
A. Atrioventricular node
B. Left atrium
C. Purkyne tissue
D. Sinoatrial node
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Answer D Sinoatrial node Explanation The SinoAtrial node is the natural pacemak...View the full answer
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Related Book For
Cambridge International AS And A Level Biology
ISBN: 9781107636828
4th Edition
Authors: Mary Jones, Richard Fosbery, Jennifer Gregory, Dennis Taylor
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