Coronary arteries:
- It needs oxygen -rich blood to survive
-blood is supplied to the hearty by its own vascular system called the coronary circulation
- aorta branches off into 2 main coronary blood vessels
- these coronary arteries branch off into smaller arteries which supply oxygen-rich blood to the entire heart muscle
- right coronary artery supplies blood mainly to right side of heart, right side is smaller because it pumps blood only to lungs
- left coronary artery branches into left anterior descending artery and the circumflex artery, supplies blood to the left side of the heart
-left side is larger and more muscular because it pumps blood to the rest of the body
STRUCTURE
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FUNCTION
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DEOXY/OXY BLOOD
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LEFT ATRIUM
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collects oxygen-rich blood returning from the lungs and then forces it through the mitral valve and into the left ventricle
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OXY BLOOD
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LEFT VENTRICLE
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largest and strongest chamber in heart, wall 1/2 inch thick but strong enough to force push blood through aortic valve and into your body.
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DEOXY BLOOD
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RIGHT ATRIUM
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collects oxygen-poor blood returning from the body, then forces it through the tricuspid valve and into the right ventricles
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OXY BLOOD
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RIGHT VENTRICLE
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collects oxygen-poor blood from right atrium and then forces it through pulmonary valve and into lungs.
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DEOXY
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PULMONARY ARTERY
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carries blood into the lungs and picks up oxygen
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DEOXY BLOOD
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AORTA
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largest artery, carries oxygen-rich blood from lungs back to heart.
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OXY BLOOD
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PULMONARY VEINS
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carries oxygen-rich blood from lungs back to the heart.
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OXY BLOOD
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SUPERIOR VENA CAVA
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oxygen-poor blood from the upper parts of the body returns to the heart the superior vena cave
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DEOXY BLOOD
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INFERIOR VENA CAVA
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oxygen-poor blood from the lower parts of the body returns to the heart through the inferior vena cava
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DEOXY BLOOD
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ATRIOVENTRICULAR VALVES (Mitral & Tricuspid)
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controls blood flow from the left atrium into ventricle
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OXY BLOOD
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CHORDAE TENDINAE
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cord like tendors that connect the papillary muscles to the tricuspid valve and the mitral valve in the heart.
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OXY BLOOD
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SEMI LUNAR VALVES (Pulmonary & Aortic)
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controls blood flow from the right ventricle into pulmonary arteries
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DEOXY BLOOD
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SEPTUM
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wall of muscle called septum separates left and right atria and left and right ventricles.
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