What Do Red Blood Cells Do In The Body?

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Kyoko Katayama Profile
Kyoko Katayama answered
Red blood cells carry oxygen to the cells of our body and then they carry carbon dioxide away from the cells.
Steve Theunissen Profile
Respiration is their key function. In your lungs each red blood cell picks up oxygen, just as a truck might load up at a warehouse. A red cell contains an iron-rich protein called hemoglobin that oxidizes or "rusts," as it were, in your lungs, that is, it unites with oxygen, becoming bright red. Then comes a quick trip to deliver this to the customers, your body cells. From your lungs the blood speeds to your heart, where it gets a strong push, carrying it through progressively smaller arteries until it reaches the minute capillaries throughout your body. As each red cell passes single-file through a capillary, it quickly delivers up its cargo of oxygen and makes a pickup for the return trip. Your body cells then "burn" oxygen and nutrients to produce energy for you so you can move, think and keep warm. So in the brief passage through your capillaries the blood delivers oxygen and collects the by-product carbon dioxide, which is brought back to your lungs for discharging.
Anonymous Profile
Anonymous answered
A red blood cell is the primary cell in the human blood. It carries oxygen to our working arteries (A.K.A = the lungs, heart and muscles) and then it collects carbon dioxide and then the cell brings it into the lungs were we then breathe it out.
Anonymous Profile
Anonymous answered
Red blood cells helps you to breath, it floats in your body. The journey starts in the lungs, where they pick oxygen from the air you breath. Then they travel to your heart ,which pumps out the blood, delivering oxygen to all parts of your body.

The red blood last in your body for 120 days in the bloodstream. Red blood cells are red only because they contain a protein chemical called haemoglobin which is bright red in colour.
Matthew Yau Profile
Matthew Yau answered
They bring oxygen around your body. They also keep you warm.
Anonymous Profile
Anonymous answered
They pick up the oxygen and carry it around your body, they basically carry oxygen and they add colour to your skin.
Anonymous Profile
Anonymous answered
They bring oxygen around the body white blood cells kill virus
Anonymous Profile
Anonymous answered
Red blood cells cary oxygen around your body. If you didnt have red blood cells your blood wouldnt be red

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