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11 Cards in this Set
- Front
- Back
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where is the heart located
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in the thoracic cavity, in the mediastinum, between the 2 lungs
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what encloses the heart
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a fibrous sac called the pericardial
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within the fibrous sac the heart is surrounded by the?
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the pericardial cavity
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what is pericarditis?
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a life threatening condition, its an infection within the pericardial cavity and it leads to swelling around the heart and compression of the heart, preventing the heart from adequately filling with blood and effects its ability to pump
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4 chambers of the heart
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right side- right atrium, and right ventricle
left side- left atrium, and left ventricle |
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what does a atrioventricular valve do?
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on each side of the heart this separates the atrium from the ventricle
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what are coronary arteries
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they are the first branches from the aorta that carry oxygenated blood to the heart tissue
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three layers of the heart wall
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Endocardium-innermost
myocardium-middle layer epicardium-outer layer |
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how many sets of valves are in the heart
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2
atrioventricular valves semilunar valves |
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describe the atrioventricular valves
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they are between the atria and venticles
right- has 3 flaps; tricuspid valve left- 2 flaps; bicuspid valve also called mitral valve |
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describe the semilunar valves
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leaving the right ventricle: pulmonary valve
leaving the left ventricle; aortic valve |
