3 million
Red blood cells are produced in bone marrow.
3000000/second
Red blood cells are produced by the bone marrow.
Human blood is constantly being produced in the bone marrow at a rate of about 100 billion cells per day. It takes about 120 days for a red blood cell to go from production in the bone marrow to circulation in the bloodstream. White blood cells have a shorter lifespan and are constantly being produced in response to the body's immune needs.
In the bone marrow
Blood cells are produced in bone marrow , blood proteins in liver .
The blood cells are produced in the bone-marrow
blood is produced in your bone, called bone marrow.
Approximately 2 million red blood cells are produced every second in the bone marrow.
Blood is produced in spongy bone marrow. That is why doctors perform bone marrow transplants in an attempt to replace weak or lost blood-producing cells with healthy ones.
Blood is produced in your bone marrow, the tissue within your bones.
Blood is not produced in the arm, it is produced in spongy bone marrow. If it is produced in the arm, it is in the spongy marrow of the humerus, ulna, and radius bones.