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31 Cards in this Set
- Front
- Back
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What is the role of hemoglobin? |
Accompany oxygen in the blood From lungs to tissues |
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Name granulations in the cytoplasm of the granulocytes BEN |
basophils eosinophils neutrophils |
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what are white blood cells part of? name their functions. |
immune system |
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Explain "white bloods cells are phagocytes". |
Gobble up solid bodies Microbes which they digest and destroy |
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what happens if white blood cells are not able to destroy the microbes by phagocytosis? |
Toxins secreted by germs can kill white blood cells on site. Small abcess with pus (yellow viscous liquid made up of toxins and dead white blood cells. |
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What is the main element of plasma? |
Water |
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What is the name of the disks that are involved in the coagulation process? |
Platelets |
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What is the role of coagulation? |
Natural means of defense against hemorrhage. |
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Where is oxygenated blood found? |
Left heart |
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Name the two kinds of heart chambers. |
Atrium Ventricles |
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At what level of the blood vessels does nourishment take place? |
Capillaries |
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What is the role of the valves in the veins. |
Prevent blood from flowing backwards. |
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Name the 3 phases of the cardiac cycle and give each one a short explanation. (AVD) |
Atrial systole : 2 atria contract simultaneously Ventricular systole: 2 ventricles contract simultaneously Diastole: 4 chambers dilate completely, resting phase |
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How many times does the blood flow in 1min? |
70 times per min |
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Where is the aorta? |
Left ventricle part |
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What influence does the autonomic system have on the heart? |
Can slow down or accelerate heartbeats. |
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What mechanism helps the blood flow into the arteries? |
Pressure created by heart's contractions. |
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What irrigates the tissues? |
Capillaries |
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What can improve veinous circulation? |
Physical exercise |
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Where does blood oxygenate itself? |
Lungs |
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Where are lymph nodes found? GAN |
Groin Armpits Neck |
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Lymph originates from ... |
Blood plasma |
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What do lymphocytes produce? What are they good for? |
Antibodies Attack antigens and destroy them |
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Name advantages of good lymphatic circulation. CREPS |
Combats free radicals Regenerates tissues Evacuation of toxins Purifies skin Smoothes wrinkles |
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What is the role of mucus in the trachea? |
Trap dust Humidify air |
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Name functional elements of lungs. |
Alveoli |
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How much blood passes through lungs in a day? |
10 000 L |
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Name the 2 respiratory movements. |
Inspiration Expiration |
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What is in the air before it gets expired? |
Carbon dioxide |
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What absorbs the oxygen released by the hemoglobin? |
Cells |
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What slows down good lymphatic circulation? |
Cold weather Ageing Sedentary lifestyle High protein diet Physical and emotional stress |
