Front | Back |
What is the hearts size? location? orientation within the location?
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Size: human fist
Location: Mediastinum (medial cavity of the thorax) Orientation: Obliquely (slightly to the side, 2/3 to left) |
Heart is enclosed in double sacs called....
what are the two different layers called? |
The pericardium
Fibrous Pericardium and Serous Pericardium |
The serous pericardium is comprised of what 2 layers?
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The parietal layer and visceral layer
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What layer lines the fibrous pericardium?
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Parietal layer of serous pericardium
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What layer covers the external heart surface.....
what is it also referred to as? |
Visceral layer of serous pericardium
the epicardium |
A film of serous fluid that allows the heart to work in a virtually frictionless environment is located where....
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Pericardial cavity (between parietal and visceral serous membranes)
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Name the layers of the heart wall from deep to superficial (3)....and continue to outermost layer
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Endocardium / Myocardium / Epicardium (visceral layer of serous pericardium) / Pericardial Cavity / Parietal layer of Serous Pericardium / Fibrous Pericardium
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Which layer of the heart wall is responsible for the bulk of the heart wall and bulk of the contractions?
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Myocardium
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Which layer of the heart wall is often infiltrated with fat...especially in older people?
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Epicardium
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What are the 3 vessels that carry blood into the heart via the right atrium?
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Superior Vena Cava
Inferior Vena Cava Coronary Sinus |
What are the 4 pulmonary veins that enter the left atrium? (2 names though)
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Right Pulmonary Veins (2)
Left Pulmonary Veins (2) |
Blood is pumped to the lungs from what part of the heart?
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Right Ventricle
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The vessel carrying unoxygenated blood from the heart to the lungs is called what? and splits into what?
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Pulmonary Trunk, which splits into the Right and Left Pulmonary Arteries
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Oxygenated blood returns from the lungs to the heart via what vessels and into what?
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Via the Right and Left Pulmonary Veins into the Left Atrium
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Oxygenated blood in the Left Atrium goes where?
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Left Ventricle
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