pumps them around your body to where they are most needed
eg. if you are doing exercise then your heart will pump them to the muscles that are being used
red blood cells are to the right side of your heart
No, red blood cells are produced in the bone marrow, specifically in the spongy tissue found in the cavities of bones. The heart pumps oxygenated blood throughout the body but does not play a role in the production of red blood cells.
Red blood cells contain hemoglobin. These cells are also known as erythrocytes.
white blood, red blood, and more
the red blood cells
In the heart.
Red blood cells give oxygen to the lungs. Also, they carry oxygen out to the body from the heart.
the heart
the pumping of your heart
The red blood cells carry the oxygen from the lungs round the body. The heart pumps the red blood cells to go around the body. When the oxygen is given to the cells, the red blood cells return to the heart and get pumped back to the lungs while carrying carbon dioxide.
Red blood cells give oxygen to the lungs. Also, they carry oxygen out to the body from the heart.
Red blood cells are part of the blood and travel where the blood goes. Blood is moved through the heart to the lungs and back to the heart. Then it is moved through arteries to all the tissues of the body and back to the heart through the veins.