36531
Description
Flashcards by milly.vaughan, updated more than 1 year ago
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Created by milly.vaughan
about 11 years ago
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| Question | Answer |
| Platelets | Cause clotting. |
| Plasma | Transport: -Blood cells. -Ions. -Soluble nutrients. -Hormones. -Carbon dioxide. |
| Lymphocytes | Produced by white blood cells. Creates antibodies which dissolve toxins of the bacteria. |
| Phagocystosis | After lymphocytes dissolve toxins, phagocytes finish off the job by "engulfing" the bacteria. |
| Valves | Controls the direction of the flow of blood. Ensures the blood flows one way. Open & Closes. |
| Oxygenated Blood | Enters second circuit. Supplies brain and entire body with blood. |
| Oxygenated Blood | Enters second circuit. Supplies brain and entire body with blood. |
| Pressure | Blood transported from heart to lungs the pressure is smaller than second circuit. Why?????? First circuit only pumps blood to the lungs. |
| Bicuspid Valve (LEFT) | Tricuspid Valve (RIGHT) |
| Pulmonary Veins | Transports oxygenated blood from the lungs to the left atrium. |
| Aorta | Transports oxygenated blood from the heart to the rest of the body & the brain. |
| Vena Cava | Transports Deoxygenated blood from body to the heart. |
| Pulmonary Artery | Transports deoxygenated blood to the heart into the lungs. |
| Coronary heart disease | Blockage of coronary arteries with cholesterol and O2 & nutrients cannot be transported. |
| Diastole | Heart is being filled with blood. |
| Systole | Atria contracts to force blood into ventricles. Semi-lunar is shut. |
| Effect of Physical Activity on Heart | HR increases to supply muscles with more O2 to produce more energy. Brain sends nerve signals to heart to control rate. |
| Hepatic Artery | Supplies oxygenated blood to the liver, duodenum and pancreas. |
| Renal Artery | Supplies oxygenated blood to the kidney. |
| Renal Vein | Transports blood AWAY from kidney into the inferior Vena Cava. |
| Arteries | Transport blood away from the heart to lungs & rest of the body. |
| Artery Characteristics | High pressure. Fast pumps. Very narrow lumen. Small diameter. Strong & thick outer wall. |
| Veins | Transports blood towards heart. |
| Vein Characteristics | Travels with very low pressure. Lumen is wide. Thin & inelastic walls. Have valves to stop back flow. Nearer surface of skin. Carry deoxygenated blood. |
| Capillaries | Get blood from arteries as close as possible to the tissues in order to exchange material with cells. |
| Capillary Characteristics | Smallest blood vessels. Links arteries with veins. One cell thick. Pores in walles to allow plasma to get out of blood to become tissue fluid. |
| White blood cells | Antibody formation. Phagocytosis. |
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