Cardiovascular - Heart and Blood Flow Flashcards
What is the Mediastinum?
The central component of the thoracic cavity
How long does it take to detect a heartbeat in a fetus?
About 5 weeks
Which blood circulation supplies the heart?
Coronary circulation
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Superior Vena Cava
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Right Pulmonary Artery
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Pulmonary Trunk
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Right Atrium
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Right Pulmonary Veins
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Tricuspid Valve
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Right Ventricle
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Chordae Tendinaea
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Inferior Vena Cava
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Aorta
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Left Pulmonary Artery
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Left Atrium
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Left Pulmonary Veins
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Bicuspid (mitral) Valve
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Aortic Valve
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Pulmonary Valve
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Left Ventricle
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Papillary Muscle
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Interventricular Septum
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Epicardium
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Epicardium
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Endocardium
How does oxygen-poor blood enter the heart?
It enters into the right atrium through the superior and inferior Vena Cava
Where does blood go after leaving the right atrium?
Blood moves down into the right ventricle and up through the left and right pulmonary arteries
How does oxygen-rich blood enter the heart?
Enters through the left and right pulmonary veins into the left atrium
Where does oxygen-rich blood go after leaving the left atrium?
It moves through into the left ventricle and up through the aorta
What is the name of the valve between the right atrium and right ventricle?
Tricuspid Valve
What is the name of the valve between the right ventricle and pulmonary arteries?
Pulmonary Semilunar Valve
What is the name of the valve between the left atrium and the left ventricle?
Bicuspid Valve
What is the name of the valve between the left ventricle and the aorta?
Aortic Semilunar Valve
What is the collective name for the bicuspid and tricuspid valves?
Atrioventricular (AV) Valves
What lining are the papillary muscles attached to?
Endocardium
What is the importance of Chordae Tendinae and Papillary Muscles to the AV Valves?
They stop the valves from inverting into the atrium
Why does the left ventricle have a much thicker myocardium than the right ventricle?
Because the left ventricle needs to contract much more pressure to allow it to pump the oxygenated blood around the body
What is the blood supply to the lungs called?
Pulmonary Circuit
What is the blood supply to the heart called?
Coronary circuit
What is the blood supply to the body called?
Systemic Circuit
