The heart Part 1 - questions on the heart- basic knowledge and the cardiac cycle 3.5 / 5 based on 7 ratings ? Physical EducationAnatomy & physiologyASAll boards Created by: Georgina brownCreated on: 08-05-10 17:47 What directs the impulse down the Bundle of HIS? The AV node 1 of 11 What does the unique structure of the heart enable it to do? act as a dual-action pump 2 of 11 The heart is myogenic. What does this mean? it creates its own impulses 3 of 11 Where do impulses originate from? The SA node 4 of 11 Wher is the bundle of HIS located? the septum 5 of 11 Where are the Purkinjie fibres located? The ventricle walls 6 of 11 During the cardiac cycle,what is the diastolic phase? When the heart relaxes 7 of 11 How long does the the Diastolic phase last? 0.5seconds 8 of 11 What is the other phase known as and what does it do? the systolic phase-the heart contracts 9 of 11 How long does the Systolic phase last? 0.5seconds 10 of 11 the cardiovascular system consists of threee main components. What are they? the heart, blood vessels and the blood 11 of 11
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