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Cards In This Set
| Front | Back |
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Cardiovascular system (CV)
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Composed of the heart and blood vessels
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Three major types of vessels
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1. artery2. capillary3. vein
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Arteries
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Carries blood away from the heart
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LumenÂ
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The size of the lumen can be altered depending on the needs of the body
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Vasoconstriction
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When lumen contracts to decrease blood flow
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Vasodilation
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When lumen relaxes and causes increase in blood flow
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Pulse
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Surge of blood felt in the arteries when blood is pumped from the heart
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Oxygenated
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High concentration of O2 and appears bright red
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Arterioles
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Small arteries that sends blood to the capillaries
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Capillaries
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Microscopic vessels that join the arterial system with the venous system
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Veins
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Return blood to the heart
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DeoxygenatedÂ
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Low concentrations of O2
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Heart
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Muscular pump that propels blood to entire body through a closed vascular system
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Endocardium
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Serous membrane that lines heart chambers
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Myocardium
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Muscular layer of the heart
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