Anatomy of Pump Systems in the Heart

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Where is the apex of the heart located?

In the mediastinum

On the posterior surface of the heart

Pointing inferiorly toward the left hip (correct)

About 9 cm wide pointing toward the right shoulder

Which chamber of the heart is described as the thickest and most muscular?

Left atrium

Right atrium

Right ventricle

Left ventricle (correct)

What is the function of the pericardial fluid?

Protects the lungs

Pumps blood to the lungs

Reduces friction as the heart beats (correct)

Circulates oxygenated blood

Which chamber pumps deoxygenated blood to the lungs for oxygenation?

Right atrium Signup and view all the answers

Where does the left ventricle pump blood into?

Aorta Signup and view all the answers

What is the main function of the systemic pump system?

To pump oxygenated blood to the rest of the body Signup and view all the answers

What is located in the mediastinum?

Pericardial cavity Signup and view all the answers

What is pumped by the pulmonary pump system?

Oxygenated blood to lungs for oxygenation. Signup and view all the answers

What is the function of the AV valves in the heart?

Prevent backflow into the atria when the ventricles contract Signup and view all the answers

Which valve ensures that blood flows from the left ventricle into the aorta and prevents backflow?

Aortic Semilunar valve Signup and view all the answers

What is the function of the Chordae Tendinae in the heart?

Prevent AV valves from protruding from ventricular walls Signup and view all the answers

Which layer of the heart consists of cardiac muscle tissue?

Myocardium Signup and view all the answers

What is the function of the Serous Pericardium?

Lubricate to reduce friction between layers Signup and view all the answers

Which valve allows blood to flow into the pulmonary trunk when the right ventricle contracts?

Pulmonary valve Signup and view all the answers

What anchors the AV valves to papillary muscles in the heart?

Chordae Tendinae Signup and view all the answers

Which layer of the heart covers the heart valves and lines the chambers?

Endocardium Signup and view all the answers

What is the major function of Fibrous Pericardium in protecting the heart?

Preventing overfilling with blood Signup and view all the answers