Podcast
Questions and Answers
What is the main function of the fibrous skeleton of the heart?
What is the main function of the fibrous skeleton of the heart?
- Division of ventricles
- Generation of electrical impulses
- Contraction of atria
- Supporting the valves (correct)
Where is the SA (Sinoatrial) node located in the heart?
Where is the SA (Sinoatrial) node located in the heart?
- Interatrial septum
- Above the tricuspid valve
- Base of SVC (correct)
- In the right ventricle
What happens when the ventricles contract during diastole and systole in the heart?
What happens when the ventricles contract during diastole and systole in the heart?
- Conduction system activates
- Ventricles relax to stop blood flow (correct)
- Blood flow from great vessels increases
- Valves open to allow blood flow
Which structure is responsible for the contraction of both atria before the atrioventricular (AV) nodes are engaged?
Which structure is responsible for the contraction of both atria before the atrioventricular (AV) nodes are engaged?
Where does the AV bundle (bundle of His) lead to after leaving the AV node?
Where does the AV bundle (bundle of His) lead to after leaving the AV node?
Which structure divides the inferior mediastinum into anterior, middle, and posterior subdivisions?
Which structure divides the inferior mediastinum into anterior, middle, and posterior subdivisions?
What is the function of the fibrous pericardium?
What is the function of the fibrous pericardium?
Which nerves are located in the middle mediastinum?
Which nerves are located in the middle mediastinum?
Which chamber of the heart has thinner walls due to pressure differences?
Which chamber of the heart has thinner walls due to pressure differences?
Where is the epicardium located?
Where is the epicardium located?
Which valve lies between the Left Atrium and Left Ventricle?
Which valve lies between the Left Atrium and Left Ventricle?
What structures are included in the middle mediastinum?
What structures are included in the middle mediastinum?
What is the function of papillary muscles in the heart?
What is the function of papillary muscles in the heart?
What is the function of the serous pericardium?
What is the function of the serous pericardium?
Which structure contains Purkinje fibers in the heart?
Which structure contains Purkinje fibers in the heart?
What is the main function of semilunar valves in the heart?
What is the main function of semilunar valves in the heart?
What is the purpose of chordae tendinae in the heart?
What is the purpose of chordae tendinae in the heart?
Which part of the heart is continuous with the endothelium of vessels?
Which part of the heart is continuous with the endothelium of vessels?
What is the orientation of the heart apex?
What is the orientation of the heart apex?
Which structure is an embryonic remnant of the right atrium?
Which structure is an embryonic remnant of the right atrium?
What is the function of the coronary sinus?
What is the function of the coronary sinus?
Where do the Pectinate muscles reside in the heart?
Where do the Pectinate muscles reside in the heart?
What is the purpose of the Caval valve during embryonic development?
What is the purpose of the Caval valve during embryonic development?
What is the main function of the fibrous skeleton of the heart?
What is the main function of the fibrous skeleton of the heart?
Which chamber of the heart has the thickest myocardium?
Which chamber of the heart has the thickest myocardium?
During which phase of the cardiac cycle do the atrioventricular valves close?
During which phase of the cardiac cycle do the atrioventricular valves close?
Which vessel carries deoxygenated blood from the heart to the lungs for oxygenation?
Which vessel carries deoxygenated blood from the heart to the lungs for oxygenation?
What is the term for the spread of electrical excitation through the chambers of the heart?
What is the term for the spread of electrical excitation through the chambers of the heart?
Which structure prevents backflow of blood from the aorta into the left ventricle?
Which structure prevents backflow of blood from the aorta into the left ventricle?
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