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31 Cards in this Set
- Front
- Back
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Cardiovasuclar Functions
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Gaseous exchage
Delivery of nutrients Delivery of hormones Defense lukocytes+antibodies Thermal exchange Transportation of water |
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Hmostasis
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prevention of blood loss
1 platelet plug 2 coagulation 3 growth of fibrous tissue |
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General info
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75 heart beats/min
75 mL blood ejects/beat 5 liters of blood |
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Pulmonary circuit
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rt. heart pumps blood to lungs
arteries deoxgenated blood |
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systemic circuit
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lt heart pumps blood to body
veins oxygenated |
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Walls of blood vessel
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tunica intima: inner
tunica media tunica adventitia |
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Vasoconstriction
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Narrow
contruction when stiulated b sympathic |
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Vasodilation
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smooth muscle relax
blood vessels open up |
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Heart wall layers
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Epicardium: outer
Myocarium Endocardium |
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Blood enters right heart
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superior inferor vena cava
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Blood leavs right heart
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plumonary trunk> left and right pulmonary arteries
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Blood enters left heart
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left/right pulmonary veins
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blood leaves left heart
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aorta
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coronary arteries
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provides blood to heart wall
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cardiac and cornary sinus
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drains into right atrium
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Blood Flow Right Side
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1. superior and inferior vena cava get blod from body
2.right atrium 3.pulmonary trunk 4.right semilunar valve 5.right ventricle |
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Blood Flow Left Side
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1.pulmonary veins gets blood from lungs
2.left atrium 3.left ventricle 4.left semilunar valve 5.aorta 6.cornary arteries |
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Atrioventricular AV valves
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guard entrace to ventricles from aorta
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Semilunar Valve
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guards exits of ventricles
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Cornary arteries
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supplies tissue of heart
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Cardiac veins
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collects blood
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right AV valvue
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tricuspid valve
chordae tendiae papillary muscles prevents vavlve from turing inside out into atrium during contraction |
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right semilunar valve
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blocks rightvent and pulmonary trunk
pulmonary valve |
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left AV valvue
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bicuspid/mitral
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left semilnar
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gblocks left vent ad aorta
aortic semilunar valve |
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blood supplied to tissue of heart by
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right and left coronary arteries
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venous blood colleted by
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cardiac veins
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venous blood drains into
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coronary sinus
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week 3
week 4 week 5 week 8 |
one chamber
begins beating four chambers 4 chambers and valves |
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umbilical vein
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brings nutrients and oxygen
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umbilical artery
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co2 and wastes retured to products
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