20 Questions
What can happen when there is an accumulation of fluid within the pericardial cavity?
Increased pressure on the heart
What is the main symptom of pericarditis?
Chest pain
What causes acute cardiac tamponade due to an accumulation of fluid in the pericardial cavity?
All of the above
What surrounds the muscular body of the heart and the roots of the great vessels?
Fibrous pericardium
What is the function of the fibrous pericardium?
Prevents overfilling of the heart
Which layer of the pericardium is made up of tough connective tissue and is relatively non-distensible?
Outer fibrous layer
What serves to minimize the friction generated by the heart as it contracts and moves within the thoracic cavity?
Pericardial cavity
Which nerve is responsible for the innervation of the pericardium?
Phrenic nerve
What is the arterial supply to the fibrous and parietal pericardium?
Internal thoracic artery
Which layer of the pericardium lines the internal surface of the fibrous pericardium?
Outer parietal layer
What is the main consequence of pericardial effusion due to the relatively inextensible fibrous pericardium?
Compression of the heart chambers, compromising cardiac output
What causes acute cardiac tamponade due to an accumulation of fluid in the pericardial cavity?
Both A and B
What serves to minimize the friction generated by the heart as it contracts and moves within the thoracic cavity?
Fibrous pericardium
Which layer of the pericardium is made up of tough connective tissue and is relatively non-distensible?
Fibrous pericardium
What surrounds the muscular body of the heart and the roots of the great vessels?
Pericardium
What is the main function of the fibrous pericardium?
Fixes the heart in the mediastinum
Which nerve provides innervation to the visceral pericardium?
Vagus nerve
What is the arterial supply to the visceral pericardium?
Coronary arteries
Which layer of the pericardium is made up of a single sheet of epithelial cells known as mesothelium?
Inner visceral layer
What is the source of referred pain, such as shoulder pain experienced as a result of pericarditis?
Phrenic nerve
Test your knowledge about the clinical relevance of the pericardium and the condition of cardiac tamponade. Learn about the impact of pericardial effusion and pericarditis on cardiac output.
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