How are blood cells made?

Answer 1

by red blood cells

Answer 2

by red blood cells

Answer 3

Blood cells are made in the bone marrow. Erythrocytes, or red blood cells, are constantly being produced and released from marrow tissue. Leukocytes, or white blood cells are also produced in the bone marrow. B cells and T cells are leukocytes that are made and mature in the bone marrow while T cells mature in Thymus.

In the Fetus

During embryonic development, blood is first formed extra-embryonically and production gradually shifts into the spleen and fetal liver, before finally occurring primarily in the bone marrow.

Answer 4

in the bone marrow

the bone marrow is located inside the bone. if you have ever taken a look at a bone (even animal bones) they have they tiny little holes in them. these holes transport the new blood from the bone marrow into the blood stream. i held a femur bone of a deer (i think it was a deer) it had only a few or couple of holes in it to allow blood from the bone marrow.

Answer 5

In the liver

blood cells are actually made in the bone marrow or in the bones not the liver.

Answer 6

they are made in the bone marrow