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21 Cards in this Set
- Front
- Back
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5 types of blood vessels in order |
1.Artery 2.Arteriole 3.Capillary 4.Venule 5.Vein |
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Arteries (Characteristics & Function) |
- Thick walled and elastic - High blood pressure - Carries blood away from heart - Rich in oxygen |
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Vein (Characteristics & Function) |
- Thin & Valves - Low blood pressure - Carries blood back to heart - Oxygen poor |
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Capillary (Characteristics & Function) |
- One cell thick - Main function: Diffusion of oxygen - Connects arterioles to venules - Oxygen rich & poor |
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Pulmonary Circuit |
The right side of heart pumps blood to lungs (deoxygenated) |
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Systemic circuit |
The left side of heart pumps blood to body (oxygenated) |
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Sinoatrial Node (SA node) |
SA node gets stimulated which L & R atria contracts then signals AV node |
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Atrioventricular Node (AV node) |
Av node impulses purkinji fibers, those fibers cause L & R ventricles to contract |
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Systole |
Ventricle Action: Contracted Pressure in heart: High Blood movement: Into aorta AV valves: Closed Semilunar valves: Open Sound: Lub |
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Diastole |
Ventricle action: Relaxed Pressure in heart: Low Blood movement: into ventricles AV valves: Open Semilunar valves: Closed Sound: Dub |
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5 factors that influence blood pressure |
- Elasticity of the artery - Diameter of the artery - Viscosity of the blood - Heart rate - Volume of blood |
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Components of blood |
- Plasma - Red blood cells - White blood cells - Platelets |
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Antigen definition |
A market on the surface of a cell that signals its identity |
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Antibodies definition |
Specifically made for a certain antigen (lock and key) |
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Immune system (3 Lines of Defense) |
1st: Physical/Chemical 2nd: Inflammatory response 3rd: Adapted immune response |
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Macrophage function |
Surround invader & kills it |
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Helper T cell function |
Identify invader and pass it to B cell |
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Killer T cell function |
break membranes of infected cells and kills them |
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Suppressor T cells |
Turns off immune system |
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Memory B cell function |
Remembers shape of antigen so they can make antibodies of invader |
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Lymphatic system |
Transport and filters lymph fluid, plasma and proteins become interstitial fluid |
