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Questions and Answers
What is the primary function of the coronary arteries?
What is the primary function of the coronary arteries?
- To supply blood to the heart muscle (correct)
- To drain deoxygenated blood from the heart
- To transport blood from the heart to the body
- To supply blood to the lungs
Which structure is NOT part of the thoracic cage?
Which structure is NOT part of the thoracic cage?
- Clavicle
- 12 pairs of ribs
- Costal cartilage
- Lumbar vertebrae (correct)
How many pairs of ribs are classified as false ribs?
How many pairs of ribs are classified as false ribs?
- 12 pairs
- 6 pairs
- 10 pairs (correct)
- 8 pairs
What is the role of the variable coronary veins?
What is the role of the variable coronary veins?
Which of the following is the most superior part of the sternum?
Which of the following is the most superior part of the sternum?
Which heart valve is primarily responsible for regulating blood flow between the right atrium and right ventricle?
Which heart valve is primarily responsible for regulating blood flow between the right atrium and right ventricle?
Which surface of the heart is primarily formed by the left ventricle?
Which surface of the heart is primarily formed by the left ventricle?
Which statement about the inferior surface of the heart is correct?
Which statement about the inferior surface of the heart is correct?
Which of the following structures is not part of the heart's superior border?
Which of the following structures is not part of the heart's superior border?
Which of the following best describes the left (pulmonary) surface of the heart?
Which of the following best describes the left (pulmonary) surface of the heart?
Flashcards
Tricuspid valve location
Tricuspid valve location
Located between the right atrium and the right ventricle.
Mitral valve location
Mitral valve location
Located between the left atrium and the left ventricle.
Heart Apex location
Heart Apex location
Formed by the left ventricle.
Heart right surface formation
Heart right surface formation
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Heart Inferior surface structure
Heart Inferior surface structure
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What supplies blood to the heart?
What supplies blood to the heart?
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Where does blood drain from the heart?
Where does blood drain from the heart?
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Thoracic cage
Thoracic cage
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True ribs
True ribs
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Floating ribs
Floating ribs
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Study Notes
Heart Valves
- Atrioventricular valves:
- Tricuspid valve
- Mitral valve (bicuspid valve)
- Semilunar valves:
- Aortic valve
- Pulmonary valve
Heart Surfaces
- Posterior surface (base):
- Formed mainly by the left atrium and a little by the right atrium.
- Apex:
- Formed by the left ventricle
- Anterior (sternocostal) surface:
- Formed mainly by the right ventricle (inferiorly) and superiorly by the atria
- Inferior (diaphragmatic) surface:
- Formed mainly by the right ventricle
- Rests mainly upon the central tendon of the diaphragm.
- Right surface:
- Long; formed by right atrium superiorly and right ventricle inferiorly
- Left (pulmonary) surface:
- Shorter rounded; formed mainly by the left ventricle and a little superiorly by the left atrium
Heart Borders
- Right border: IVC, right atrium, SVC
- Left border: left ventricle, left atrium, pulmonary trunk and arch of aorta
- Inferior border: right ventricle
- Superior border: right and left atria, SVC, ascending aorta and pulmonary trunk
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