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PHC 411 The Cardiovascular System: Anatomy of the Heart Quiz

10 Questions

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PHC 411 The Cardiovascular System: Anatomy of the Heart Quiz

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Questions and Answers

What is the approximate weight of the heart?

350-450 grams

250-350 grams (correct)

100-200 grams

150-250 grams

Where does the heart rest in the body?

Inferior to the vertebral column

Posterior to the diaphragm

Lateral to the diaphragm

Anterior to the sternum (correct)

What is the function of the fibrous pericardium?

Prevents overstretching of the heart, provides protection and anchors the heart in the mediastinum (correct)

Encloses the heart in a double-walled sac

Connects the heart to the lungs

Allows vigorous and rapid contraction of the heart

What is the size of the heart relative to a human fist?

Equivalent to a fist Signup and view all the answers

What does the pericardium do?

Confines the heart to its position in the mediastinum Signup and view all the answers

Which layer of the heart wall is responsible for the pumping action?

Myocardium Signup and view all the answers

What is the space that contains a few millimeters of pericardial fluid called?

Pericardial cavity Signup and view all the answers

Which chamber of the heart is separated from the left ventricle by the interventricular septum?

Right ventricle Signup and view all the answers

The left ventricle encounters 5 times as much resistance to blood flow as it serves which circuit?

Systemic circuit Signup and view all the answers

Which valve allows blood to pass from the left atrium into the left ventricle?

Bicuspid valve Signup and view all the answers