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The Circulation System
Fichas del conjunto (12)
- 1THE CIRCULATION SYSTEM;* CIRCULATION SYSTEM CONSISTS OF THE BLOOD, ARTERIES , CAPILLARIES AND THE HEART.
- 2THE BLOOD;* PEOPLE HAVE 4 - 5L OF BLOOD;
* 50% BLOOD IS PLASMA;
(pale liquid of 95% water // 3 TYPES)
* PLASMA CONSISTS OF-
glucose,amino acid,wastes,hormones and CO2. - 3Plasma #1 - RED BLOOD CELL;* MOST NUMEROUS = RED COLOUR
* RED CHEMICIAL = HAEMOGOBLIN = O2
* DIS-SHAPED + THICK AT EDGES - 4Plasma #2 - WHITE BLOOD CELL;* NOT MUCH OF THESE;
* NO SHAPE;
* PROTECT BODY AGAINST DISEASE.
- 5Plasma #3 - PLATELETS;* TINY FRAGMENT CELLS;
* CAUSE BLOOD TO CLOT.
- 6FUNCTIONS OF BLOOD #1TRANSPORT;
* transport substances around the body.
* living cells need; food molecules, O2 , hormones. - 7FUNCTIONS OF BLOOD #2DEFENCE AGAINST DISEASE;
* white blood cells engulf bacteria and make antibodies to kill them. - 8BLOOD VESSELS;* 3 TYPES;
* ARTERIES
* VEINS
* CAPILLARIES - 9ARTERIES;* Thick walls,
* Narrow lumen,
* No valves,
* Carry blood AWAY from the heart. - 10VEINS;* Thin walls,
* Wide lumen, valves,
* Carry blood TO THE heart. - 11CAPILLARIES;* Link arteries to veins,
* Wall is only one cell thick allows substances in & out of Blood. - 12THE HEART;* Made of of cardiac muscle - never tires,
* 4 chambers
Información
- Descripción
- idk what im doing
- Creado por
- Jenny Dove · may 2017
- Actualizado
- 5 may 2017
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