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30 Cards in this Set
- Front
- Back
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Animals cell exchange material across cell membrane for
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Fuels for energy, nutrients, oxygen, waste,
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What needs to be transported in circulatory
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Nutrients and fuels
Respiratory Gases Intracellular waste productive agents regulatory molecules |
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All animals have
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Circulatory fluid
tubes muccular pump |
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Open Circulatory
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Invertebrates
No separation between blood and interstitial fluid Hemolymph |
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Closed Circulatory
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Vertebrates
Blood in vessels and separate higher pressure |
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2 cahanmber
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low pressure to body
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3 chamber
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low oxygen to body
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4 chamber
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high pressure sand high o2 to body
Separates oxygen rich and oxygen poor |
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blood
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4 to 5 liters in healthy diet.
55% plasma 45% blood solids |
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Red blood celss
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Erythrocytes
transport oxygen and co2 |
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White blood cells
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Leukocytes
fight infections and cancer live for years |
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Platelets
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help in blood clotting
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normal blood pressure
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120/80
top is systolic bottom is diastolic |
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Atrium
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receive blood
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Ventricle
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pump blood
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arteries
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carry blood away from heart
thick walls provide strength for high pressure pumping |
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veins
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carry blood to heart
wide diameter low pressure |
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capularies
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thin wall, exchange diffusion
very thin walls helps diffusion |
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sphincters
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control blood flow in capilaries
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capillaries
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brain, heart, kidneys, liver
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heart valves
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4 in heart
prevent back flow |
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Atrioventricular valve
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between atrium and ventricle
keeps blood from flowing back into atria |
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Semilunar valves
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between ventricle and arteries
prevent back flow from arteries |
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lub
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ecoil of blood against av valves
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dub
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recoil of blood against semilunar valves
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Heart murmur
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blood squirts back in valve
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contraction phase
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systole
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relaxation phase
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diastole
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heart attacks
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damage of cardiac muscle due to blockage of arteries
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stroke
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death of brain tissue from blockage of arteries in head
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