Heart Anatomy

Flashcard 1
Q: Where is the heart located in the body?
A: Mediastinum

Flashcard 2
Q: Which layer of the heart is the outermost layer?
A: Epicardium

Flashcard 3
Q: Which layer of the heart is responsible for contraction?
A: Myocardium

Flashcard 4
Q: Which layer lines the inner chambers and valves of the heart?
A: Endocardium

Flashcard 5
Q: What is the primary function of the pericardial sac?
A: To protect and lubricate the heart

Flashcard 6
Q: Which layer of the heart is directly attached to the heart?
A: Epicardium

Flashcard 7
Q: What is the function of the myocardium?
A: It contracts the heart muscle to pump blood

Flashcard 8
Q: How much pericardial fluid does the pericardial sac contain?
A: 5-20 mL

Flashcard 9
Q: The myocardium is responsible for which of the following?
A: Contraction of the heart

Flashcard 10
Q: What does the epicardium do?
A: Protects the heart and provides a smooth surface

Flashcard 11
Q: What function does the endocardium serve?
A: It lines the inner chambers and valves of the heart

Flashcard 12
Q: Where is the mediastinum located?
A: In the chest cavity

Flashcard 13
Q: The heart's muscle layer is the:
A: Myocardium

Flashcard 14
Q: Which layer of the heart is closest to the blood flow?
A: Endocardium

Flashcard 15
Q: What is the pericardium?
A: The sac that surrounds and protects the heart

Flashcard 16
Q: How does the pericardial sac protect the heart?
A: By reducing friction and preventing irritation during heart movement

Flashcard 17
Q: The heart’s inner lining is called the:
A: Endocardium

Flashcard 18
Q: Which layer of the heart is most involved in pumping blood?
A: Myocardium

Flashcard 19
Q: What does the pericardial fluid do?
A: Lubricates the heart and reduces friction during its movement

Flashcard 20
Q: Which layer of the heart is the thickest?
A: Myocardium