Blood, blood vessels, heart
Heart, lungs, skin
Blood, heart, aorta
Vein
Capillary
Artery
Brain
Stomach
Chest
Aorta
Capillary
Septum
1
2
3
4
Artery
Capillary
Vein
White blood cells
Red blood cells
Platelets
Lungs
Lungs
Skin
Blood
75%
85%
90%
100%
Carbon dioxide
Oxygen
Carbon monoxide
Red blood cells
White blood cells
Platelets
Skin
Tissue
Muscle
Red blood cells
White blood cells
Platelets
Plasma
Red blood cells
White blood cells
Platelets
Plasma
Arm
Brain
Fist
Leg
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