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Circulatory system
Circulatory system
Circulatory system
Circulatory system
Circulatory system
Circulatory system
Circulatory system
Circulatory system
Circulatory system
Circulatory system
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Circulatory system

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Biology presentation

Biology presentation

Published in: Education, Business, Technology
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  • The red blood cells inside the capillary release their oxygen which passes through the wall and into the surrounding tissue. The tissue releases its waste products, like carbon dioxide, which passes through the wall and into the red blood cells.
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    • 1. Done By: Nazanin, Rachel, Agnes and Shalini
    • 2.  Transport      Water and nutrients from the intestine to the cells. Oxygen from the respiratory organ to the cells and Carbon Dioxide from the cells back to the respiratory organ. hormones from endocrine glands. toxic or waste molecules to the excretory organ. Protection    of the organism from foreign invaders (immune system) of itself from loss of blood (clotting mechanism) Skeletal, especially in some invertebrates.
    • 3.      Works all the time- till you die Pumps blood through your circulatory system. Provides crucial oxygen and other nutrients to all organs Double pumps- 1 time to the body, 1 time to the lungs Gets blood too- through coronary system
    • 4. VEIN        Thick, handles high pressure of the blood flowing through the arteries. From the heart to various parts of the body. Arteries carry oxygenated blood Arteries are red blood vessels that carry blood away from the heart. resistance vessels more rigid Deeper in the body Aren't present (except for semi-lunar valves) ARTERIES        Thin, prevents the blood from flowing in the opposite direction. From various parts of the body to the heart. Veins carry deoxygenated blood Veins are darker blood vessels that carry blood towards the heart. capacitance vessels collapsible Closer to the skin Are present, especially in limbs
    • 5. ARTERY    Carries pure, filtered and clean blood away from the heart, to all the parts of the body with an exception of the pulmonary artery and the umbilical cord. As the arteries move away from the heart, they divide into smaller vessels. Thinner arteries are called arterioles. VEIN  Veins are needed to carry the deoxygenated blood back to the heart for purification.
    • 6.     Are very thin and fragile Only one epithelial cell thick Blood cells can only pass through them in single file The exchange of oxygen and carbon dioxide takes place through the capillary wall.
    • 7.     http://www.youtube.com/watch?v=PgI80UeAMo http://www.youtube.com/watch?v=gn6QmE TEm8s&feature=endscreen http://www.youtube.com/watch?v=06iQlVM SB34 http://www.youtube.com/watch?v=Q530H1 WxtOw
    • 8. DONE BY: NAZANIN, RACHEL, AGNES AND SHALINI

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