77684
Descrição
Mapa Mental por Scott Church, atualizado more than 1 year ago
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Criado por Scott Church
quase 12 anos atrás
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Blood & Circulation
- Red Blood Cells
- Contain no nucleus (doesn't have a dip in the centre)> more oxygen carried
- Large surface area compared to volume > oxygen close to surface
- Contain no nucleus (doesn't have a dip in the centre)> more oxygen carried
- Platelets
- Platelets clot the blood after a wound > prevents infection and blood loss
- People with haemophilia have a faulty gene that codes for the clotting process
- Platelets clot the blood after a wound > prevents infection and blood loss
- White Blood Cells
- Larger than red blood cells, flexible shape to help engulf disease organism
- Protects against infection by digesting harmful microbes, bacteria digested inside WBC
- Able to squeeze out of capillaries to defend different tissues
- Has a dip in the centre and has a nucleus
- Larger than red blood cells, flexible shape to help engulf disease organism
- Plasma
- Contains mostly water, dissolved food, urea, hormones and carbon dioxide
- Pale yellow fluid carries blood cells, useful and waste
substances around the body through blood vessels
- Contains mostly water, dissolved food, urea, hormones and carbon dioxide
- Arteries = Away
- Arteries have thick walls because the blood pressure
is very high. They also have thick elastic walls
- Arteries have thick walls because the blood pressure
is very high. They also have thick elastic walls
- veINs = IN
- Capillaries = Small cells
- Valves = Open and close to let blood through and to prevent back flow
- Heart is made out of muscle
- Capillaries take blood to small cells
- The heart has a double circulation, meaning blood can
be pumped to the lungs and body at the same time
- Pulmonary Artery > Carries blood from the heart to the lungs
- Aorta (Artery) > Carries blood from heart to body
- Pulmonary Vein > Carries blood from lung to heart
- Vena Cava (Vein) > Carries blood from body to heart
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