Term
| what are the 3 major components of the cardiovascular (circulatory) system |
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Definition
1) heart
2) blood vessels
3) blood |
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Term
| what is the major function of the cardiovascular (circulatory) system? |
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Definition
transportation
nutrients and oxygen
waste products like carbon dioxide
hormones |
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Term
| which atrium and ventricle are in the systematic circuit? |
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Definition
| left atrium and ventricle |
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Term
| receives oxygenated blood coming back from lungs |
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Definition
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Term
| discharges oxygenated blood into systematic circuit (to all cells in the body) |
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Definition
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Term
| which atrium and ventricle are in the pulmonary circuit? |
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Definition
| right atrium and ventricle |
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Term
| receives deoxygenated blood |
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Definition
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Term
| discharges deoxygenated blood into the pulmonary circuit-- to lungs then drops off carbon dioxide then goes to left atrium |
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Definition
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Term
| what are the 3 major types of blood vessels? |
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Definition
1) arteries
2) capillaries
3) veins |
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Term
| carries blood away from heart; carries oxygenated blood in systematic circulation; carrier deoxygenated blood in the pulmonary circulation |
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Definition
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Term
| the smallest of the blood vessels |
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Definition
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Term
| the main role of this blood vessel is to allow the exchange of materials between blood and body tissues |
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Definition
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Term
| this blood vessel carriers blood TOWARDS the heart; carriers deoxygenated blood in the systematic circulation; carries oxygenated blood in the pulmonary circulation; |
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Definition
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Term
| what is the smallest vein? |
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Definition
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Term
| what are the 3 types of arteries |
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Definition
1) elastic or conducting arteries
2) muscular or distributing arteries
3) arterioles |
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Term
| largest diameter arteries (greater than 1 cm); walls contain large amounts of elastic fibers; allows arteries to expand and recoil; important vessels in helping propel blood onward while ventricles are relaxing; |
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Definition
| elastic or conducting arteries |
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Term
| function as pressure reserve |
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Definition
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Term
| medium-sized arteries (0.1mm to 10mm) walls contain large amounts of smooth muscle |
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Definition
| muscular or distributing arteries |
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Term
| important in regulating the blood flow to specific body regions; smooth muscle cells in CIRCULAR orientation and are responsible for vasoconstriction (ex. reduction in lumen diameter) and vasodilation (ex. increase in lumen diameter) |
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Definition
| muscular or distributing arteries |
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Term
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Definition
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Term
| connects arterioles to venules |
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Definition
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Term
| known as exchange vessels |
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Definition
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Term
| sites of exchange of nutrients and waste products between blood and tissue cells |
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Definition
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Term
| our red blood cells are 7.8 micrometers in diameter, so they have to fold up to get inside capillary beds because they are 4 to 10 micrometers |
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Definition
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Term
| what are the two types of veins? |
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Definition
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Term
| formed when several capillaries unite; 10 micrometers to 100 micrometers in diameter |
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Definition
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Term
| formed when several larger venules unite; 0.1mm to greater than 1mm in diameter |
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Definition
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Term
| all veins in the limbs have this to prevent the backflow of blood when the ventricle relaxes; created by cusps of the vessel wall |
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Definition
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