**Question 7:** Which is correct in reference to blood entering the ventricles?A) the atria is relaxed B) it is the P wave on the ECG C) pressure in the heart is at its peak D) the blood flows through the atria and the open AV valves E) Both A & B (Note: No graphs or diagrams were present in the image.)

Answered: 7) Which is correct in reference to…

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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INTRODUCTION:::

The heart has four valves and they are mitral valve, tricuspid valve, pulmonary valve and aortic valve. Mitral and tricuspid valves are also known as the atrioventricular valves and are located between the atria and ventricles. The aortic valve is located between aorta and left ventricle. The pulmonary valve is located between right ventricle and pulmonary artery. These aortic valve and pulmonary valve are known as semilunar valves. These heart valves regulates the blood flowing through the heart.