The double-walled membranous bag that encloses the heart and contains a fluid to reduce friction is called:
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Correct answer: Pericardium
The heart is protected by a double-walled membranous bag called the pericardium. It encloses the pericardial fluid which provides lubrication and protects the heart from mechanical shocks.
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More Human Heart: Structure and Working questions
- Which of the following valves prevents the backflow of blood from the right ventricle into the right atrium?
- The 'Pacemaker' of the human heart is located in which chamber?
- Which nodal tissue is responsible for receiving impulses from the SAN and delaying them slightly before passing them to the ventricles?
- During a cardiac cycle, the volume of blood pumped out by each ventricle per minute is called:
- The duration of a standard cardiac cycle in a healthy human heart is approximately:
- Which of the following events occurs during 'Joint Diastole'?