Can you please answer the questions below please! QUESTION 3Which of the following is one of the vessels which delivers blood to the right atrium?Coronary sinus00Right and left Pulmonary arteriesRight and left Pulmonary veinsPulmonary Trunk QUESTION 4What branch of the nervous system can override the pacemaker cells in the intrinsic cardiac conduction system?The afferent branch of the somatic nervous systemThe parasympathetic branch of the Autonomic Nervous SystemThe efferent branch of the somatic nervous systemThe sympathetic branch of the Autonomic Nervous System

Answered: QUESTION 3 Which of the following is…

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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Can you please answer the questions below please!

QUESTION 4
What branch of the nervous system can override the pacemaker cells in the intrinsic cardiac conduction system?
The afferent branch of the somatic nervous system
The parasympathetic branch of the Autonomic Nervous System
The efferent branch of the somatic nervous system
The sympathetic branch of the Autonomic Nervous System

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In the cardiac cycle, blood from systemic circulation reaches the right atrium first. Blood is returned from all body tissues by systemic circulation. When the right atrial contracts, the majority of the blood that was still in the atrium is forced into the right ventricle. The majority of the blood then, therefore, moves from the right atrium into the right ventricle.