**Question:**1) Which of the events below occurs when the semilunar valves are open?A) Ventricles are in diastole B) Blood leaves pulmonary arteries and the aorta C) AV valves are closed D) Both A & B E) None of the above **Answer:**The correct option is **B) Blood leaves pulmonary arteries and the aorta**, and **C) AV valves are closed** is also circled, indicating it could be another correct response depending on the context provided by the source material. Option D (**Both A & B**) and option E (**None of the above**) can be evaluated based on the specific system functions being studied.**Explanation:**Semilunar valves are open during ventricular systole, allowing blood to be ejected from the heart into the pulmonary artery and the aorta, supporting the selection of options B and C. AV valves being closed at this time prevents backflow into the atria.

in th 1) Which of the events below occurs when the semilunar valves are A) Ventricles are in diastole. B) Blood leaves pulmonary arteries and the aorta. CAV valves are closed. D) Both A & B E.) None of the above

in th 1) Which of the events below occurs when the semilunar valves are A) Ventricles are in diastole. B) Blood leaves pulmonary arteries and the aorta. CAV valves are closed. D) Both A & B E.) None of the above

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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