Anatomy of the Heart Ventricles Quiz

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Which feature of the heart is primarily responsible for preventing overdistension of the ventricles during systole?

Papillary muscles (correct)

Chordae tendineae

Moderator band

Trabeculae carneae

What structure is responsible for preventing prolapse of the mitral valve into the left atrium?

Chordae tendineae (correct)

Musculi pectinati

Papillary muscles

Trabeculae carneae

Which structure is primarily responsible for providing blood supply to the right atrium and part of the ventricles?

Left coronary artery

Aortic sinus

Pulmonary trunk

Right coronary artery (correct)

Which term refers to the muscular elevations in the inner walls of the ventricles that play a role in preventing suction during contraction?

Trabeculae carneae Signup and view all the answers

Which structure is directly involved in transmitting the force of contraction from the papillary muscles to the atrioventricular valves?

Chordae tendineae Signup and view all the answers

What is the function of the epicardium in the heart?

To cover the heart as a membrane Signup and view all the answers

Which structure lodges the SA node in the heart?

Crista terminalis Signup and view all the answers

What part of the heart is mainly formed by the left ventricle?

Left surface Signup and view all the answers

Which valve guards the opening of the inferior vena cava in the heart?

Eustachian valve Signup and view all the answers

What part of the heart is crossed by the coronary sulcus?

Upper part crossed by coronary sulcus Signup and view all the answers

What is the main function of musculi pectinati in the heart?

To parallel muscular ridges Signup and view all the answers

Which layer of the pericardium covers the heart and roots of great vessels?

Visceral layer Signup and view all the answers

What is the surgical significance of the transverse sinus?

It can be used to control hemorrhage during cardiac surgery Signup and view all the answers

What nerve supplies the fibrous and parietal layers of the pericardium?

Phrenic nerves Signup and view all the answers

Which artery supplies the visceral layer of the pericardium?

Coronary artery Signup and view all the answers

Where is the crux located in the heart?

At the meeting point of coronary sulcus and posterior interventricular sulcus Signup and view all the answers

Which vein accompanies the inferior border of the heart, mainly formed by the right ventricle?

Great cardiac vein Signup and view all the answers

Which coronary artery lodges in the anterior interventricular groove?

LAD (Left Anterior Descending) branch of left coronary artery Signup and view all the answers

Which part of the heart is formed mainly by the right atrium?

"Right border" Signup and view all the answers