#wagnertonight. #maddow. Science break. Bone marrow is a spongy substance found in the center of the bones.

02 Nov 2023, 01:30

#wagnertonight #maddow Science break. Bone marrow is a spongy substance found in the center of the bones. It manufactures bone marrow stem cells and other substances, which in turn produce blood cells. Each type of blood cell made by the bone marrow has an important job.