exercise and health the circulatory system. blood circulates to every cell in the body. the...
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Exercise and Health
The Circulatory System
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The Circulatory System
Blood circulates to every cell in the body.
The following diagram shows the main blood vessels and explains how blood circulates to all parts of the body.
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head and arms
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head and arms
pulmonary artery
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head and arms
pulmonary artery pulmonary vein
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head and arms
pulmonary artery pulmonary veinlungs
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head and arms
pulmonary artery pulmonary veinlungs
vena cave
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head and arms
pulmonary artery pulmonary veinlungs
vena caveaorta
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head and arms
pulmonary artery pulmonary veinlungs
vena caveaorta
liver
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head and arms
pulmonary artery pulmonary veinlungs
vena caveaorta
liver
hepatic artery
hepatic vein
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head and arms
pulmonary artery pulmonary veinlungs
vena caveaorta
liver
hepatic artery
hepatic vein
digestive system
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head and arms
pulmonary artery pulmonary veinlungs
vena caveaorta
liver
hepatic artery
hepatic vein
digestive system
hepatic portal vein
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head and arms
pulmonary artery pulmonary veinlungs
vena caveaorta
liver
hepatic artery
hepatic vein
digestive system
hepatic portal vein
kidneys
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head and arms
pulmonary artery pulmonary veinlungs
vena caveaorta
liver
hepatic artery
hepatic vein
digestive system
hepatic portal vein
kidneys
renal arteryrenal vein
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head and arms
pulmonary artery pulmonary veinlungs
vena caveaorta
liver
hepatic artery
hepatic vein
digestive system
hepatic portal vein
kidneys
renal arteryrenal vein
legs
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Blood
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Red cells
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Red cells
Do not have a nucleus Biconcave discs Contain the chemical
haemoglobin. Haemoglobin carries
oxygen around the body.
At the centre of the haemoglobin molecule is an iron atom.
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air sac in the lung
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air sac in the lung
oxygen
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air sac in the lung
oxygen
1 as blood flows through the lungs the haemoglobin in the red cells picks up oxygen
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air sac in the lung
oxygen
1 as blood flows through the lungs the haemoglobin in the red cells picks up oxygen
2 Haemoglobin and oxygen join to make oxyhaemoglobin
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air sac in the lung
oxygen
1 as blood flows through the lungs the haemoglobin in the red cells picks up oxygen
2 Haemoglobin and oxygen join to make oxyhaemoglobin
3 when the blood flows past cells with very little oxygen in them the oxyhaemoglobin breaks down
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air sac in the lung
oxygen
1 as blood flows through the lungs the haemoglobin in the red cells picks up oxygen
2 Haemoglobin and oxygen join to make oxyhaemoglobin
3 when the blood flows past cells with very little oxygen in them the oxyhaemoglobin breaks down
oxygen diffuses into the cells of the body
oxygen is used for respiration
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air sac in the lung
oxygen
1 as blood flows through the lungs the haemoglobin in the red cells picks up oxygen
2 Haemoglobin and oxygen join to make oxyhaemoglobin
3 when the blood flows past cells with very little oxygen in them the oxyhaemoglobin breaks down
oxygen diffuses into the cells of the body
oxygen is used for respiration
4 the haemoglobin in the red cells goes back to the lungs to pick up more oxygen
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Functions of the blood
Oxygen is carried in the red cells
Carbon dioxide is carried in the plasma
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Functions of the blood
digested foods are carried in the plasma
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Functions of the blood
Urea (waste substance) is carried in the plasma from the liver to the kidneys
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Functions of the blood
Hormones are carried in the plasma
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Functions of the blood
Heat is carried in the blood
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BIOLOGY TEXT
Read p26-27 and answer question 1 off p27