human transport system

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Human Transport System

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Content:

• Blood:• Platelets• red blood cells• white blood cells

• Blood vessels:• arteries• veins• capillaries

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Blood

Platelets:• Small• Irregularly shaped• 2-3 mm in diameter

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Platelets also help clog blood…

What will happen if platelets do not clog our blood?

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If we DO NOT have platelets…

If we get a cut, we will keep bleeding and bleeding until we are out Of blood.

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Blood

Red Blood Cells:• Delivers oxygen(o2)• Quarter of cells in human body are

red blood cells

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Blood

• White Blood Cells:• Defends body against infectious

diseases• 7000 white blood cells per microlitre

of blood • Make up about 1% of blood in a

healthy adult body.

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Blood vessels

• Arteries:• Carries blood from the heart to the

lungs• Blood picks up oxygen at lungs• Blood rich in oxygen goes back to

heart• Aorta is the largest artery in the

human body

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Blood vessels

• Veins:• Transport blood from other parts of

body to heart

• Categorized into 4 parts(only going to talk about 2 of them):

• Pulmonary• Systemic

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Blood vessels

• Pulmonary veins:• Carries oxygenated blood for the

lungs to the left atrium of the heart

• Systemic veins:• Returns deoxygenated blood from the

rest of the body to the right atrium of the heart

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Blood vessels:

• Capillaries:• Transport blood from artery to veins.

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CREDITS

LeanneJun HongKhairilYing Lin