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33 Cards in this Set
- Front
- Back
aorta
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(a-OR-tah)
largest artery in body; carries blood from left ventricle of heart to thorax and abdomen |
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arteriole
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(are-TEER-ee-ole)
blood vessel between artery and capillary, surrounded by smooth muscle; primary site of vascular resistance |
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artery
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(ARE-ter-ee)
thick-walled elastic vessel that carries blood away from heart to arterioles |
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atrium
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(AY-tree-um)
chamber of heart that receives blood from veins and passes it on to ventricle on same side of heart |
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blood
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pressurized contents of the cardiovascular system composed of a liquid phase (plasma) and cellular phase (red and white blood cells, platelets)
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blood vessels
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tubular structures of various sizes that transport blood throughout the body
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bulk flow
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movement of fluids or gasses from region of higher pressure to one of lower pressure
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capillary
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one of the smallest blood vessels
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cardiovascular system
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heart and blood vessels
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circulatory system
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(SIRK-you-la-tor-ee)
the heart and system of vessels that deliver blood to all parts of the body |
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erythrocytes
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(eh-RITH-roh-site)
red blood cells |
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formed elements
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solid phase of blood, including cells (erythrocytes and leukocytes) and cell fragments (platelets)
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heart
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muscular pump that generates blood pressure and flow in the cardiovascular system
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hematocrit
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(heh-MAT-oh-krit)
percentage of total blood volume occupied by blood cells |
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hemodynamics
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the factors describing what determines the movement of blood, in particular, pressure, flow and resistance
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hydrostatic pressure
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(hy-droh-STAT-ik)
pressure exerted by fluid |
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inferior vena cava
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(VEE-nah KAY-vah)
large vein that carries blood from lower half of body to right atrium of heart |
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leukocytes
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(LOO-koh-site)
white blood cell |
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microcirculation
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blood circulation in arterioles, capillaries, and venules
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plasma
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(PLAS-muh)
liquid portion of blood; component of extracellular fluid |
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platelet
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(PLATE-let)
cell fragment present in blood; plays several roles in blood clotting |
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pulmonary artery
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large, branching vessel carrying oxygen-poor blood away from the heart toward lungs
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pulmonary circulation
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cirulation through lungs; portion of cardiovascular system between pulmonary trunk, as it leaves the right ventricle, and pulmonary veins, as they enter the left atrium
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pulmonary trunk
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large artery that carries blood from right ventricle of heart to lungs
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pulmonary veins
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large, converging vessels returning oxygen-rich blood toward the heart from the lungs
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resistance (R)
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hindrance to movement through a particular substance, tube, or opening
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superior vena cava
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large vein that carries blood from upper half of body to right atrium of heart
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systemic circulation
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circulation from left ventricle through all organs except lungs and back to heart
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vascular system
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closed system of blood vessels that includes all arteries, arterioles, capillaries, venules, and veins
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vein
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any vessel that returns blood to heart
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ventricle
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cavity, as in cerebral ventricle or heart ventricle; lower chamber of heart
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venule
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small vessel that carries blood from capillary network to vein
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viscosity
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measure of friction between adjacent layers of a flowing liquid; property of fluid that makes it resist flow
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