Match the phases of the cardiac cycle given below with the correct corresponding number in the fhigure below.0.2040.60.812010080+Pressure changes60+40+20+Leftventricie12080Volume changes40V[ Choose )Isovolumetric contraction3Ventricular ejection[ Choose ]

The heart muscles are responsible for cyclical contraction and relaxation that occurs in rhythmic…

Answered: Match the phases of the cardiac cycle…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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isovolumetric contraction isovolumetric relaxation ventricular filling ventricular ejection closed rises S1 drops depolarize S2 The first phase of the cardiac cycle is . This is when a lot of blood is in the atria, which causes atrial pressure to be higher than the ventricles. The atrioventricular valves open, and blood moves from the atria to the ventricles. At the end of this phase, the atria contract to maintain pressure and blood flow into the ventricles. As blood leaves the atria, the pressure in the atria As blood enters the ventricles, the pressure in the ventricles Towards the end of this phase, the pressure in the ventricles will exceed the pressure in the atria. At this point, the heart enters the second phase of the cardiac cycle: At this point, the AV valves shut, and we hear . The atria repolarize and the ventricles (due to the QRS complex of the ECG), causing ventricular contraction. Although contracting, it is not yet moving blood into the arteries. All 4 heart valves…
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Match the phases of the cardiac cycle given below with the correct corresponding number in the fhigure 0.2 0.4 0.6 0.8 120 100 + 80- Pressure changes 60 40+ 20+ Left ventricle 120 80+ Volume changes 40 V[ Choose ] 1. 2 5 Isovolumetric contraction 4 Ventricular ejection [ Choose ]