-Coronary arteries and veins are the blood vessels that supply blood and carry blood away from the heart muscle. The left coronary arteries supply blood mainly to the left side of the heart and vice versa.
STRUCTURE
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FUNCTION
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DEOXY/OXY BLOOD
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LEFT ATRIUM
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*collects returning oxygen rich blood
*Forces blood into mitral valve into left ventricle.
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Oxy
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LEFT VENTRICLE
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* Largest and strongest chamber in heart.
* Ventricle wall only half inch thick but still forces blood through aortic valve.
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Oxy
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RIGHT ATRIUM
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* Collets oxygen poor blood.
* Forces it through the tricuspid valve into the right ventricle.
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Deoxy
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RIGHT VENTRICLE
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* Collects oxygen poor blood from right atrium.
* Forces it into pulmonary valve and into lungs.
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Deoxy
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PULMONARY ARTERY
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* Carries blood from heart to lungs to pick up oxygen.
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Deoxy
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AORTA
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* Largest artery
* Carries oxygen rich blood from heart to rest of body
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Oxy
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PULMONARY VEINS
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* Carry oxygen rich blood from lungs back to heart.
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Oxy
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SUPERIOR VENA CAVA
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* Oxygen poor blood returns from upper parts of body to heart.
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Deoxy
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INFERIOR VENA CAVA
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* Oxygen poor blood returns from lower parts of body to heart.
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Deoxy
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ATRIOVENTRICULAR VALVES (Mitral & Tricuspid)
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Tricuspid- controls blood flow from right atrium to right ventricle.
Mitral- Controls blood flow from left atrium to the ventricle.
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Deoxy/Oxy
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CHORDAE TENDINAE
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- bring right ventricular walls closer together during contraction
-pull the AV Valves open during atriole systole.
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Left oxy
Right deoxy
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SEMI LUNAR VALVES (Pulmonary & Aortic)
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Pulmonary-Controls blood flow from right ventricle into pulmonary arteries.
Aortic- Largest artery, oxygen rich blood from heart goes to rest of body.
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deoxy/oxy
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SEPTUM
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* Separates left and right atria and ventricles.
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