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14 Cards in this Set

  • Front
  • Back
Carry blood away from the heart, rapid blood movement, high pressure 
Carry blood back to the heart, low blood velocity, low pressure
Prevent backflow of blood
Exchange of materials, lack outer two layers, thin endothelium wall, network of capillaries infiltrate every organ and tissue
Vessel that transports blood between an artery and capillary bed
Vessel that transports blood between a capillary bed and vein
Atria (Mammalian Heart)
Thin walls, function as collection chambers for blood returning to heart
Thick, powerful walls that pump blood to organs
Cardiac Cycle
One complete sequence of pumping, as heart contracts, and filling, as it relaxes and chambers fill with blood (lasts ~0.8 secs)
"Lub" (Heart Sound)
Created by recoil of blood against the closed AV valves
"Dup" (Heart Sound)
Recoil of blood against semilunar valves
Cardiac Output
the volume of blood per minute that the left ventricle pumps into the systemic circuit; depends on heart rate and stroke volume
Stroke Volume
Amount of blood pumped by left ventricle each time it contracts
Sinoatrial Node (SA node)
"Pacemaker", sets the rate and timing at which cardiac muscle cells contract – located in wall of right atrium