The Skeletal System: The Structure And Structure Of The Skeletal System

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The skeletal system helps with endocrine regulation, protection, support, movement, calcium storage, and blood cell production. The skeletal system consists of 206 bones, in the adult human body, all of which are divided into two major divisions. One division, the axial skeleton made up from 80 bones, runs along the body’s midline and the other division, the appendicular skeleton which has 126 bones.
80 percent of the human skeleton is made up of compact bone, which is dense and filled with organic minerals and nutrients.

Spongy bone or cancellous bone, much lighter than compact bone, provides the body support and flexibility. The cancellous bone may turn into compact bone through osteoblasts

Bone marrow is usually red or yellow, however at birth all bone marrow begins red and throughout time half of it becomes yellow. The yellow coloring in the bone marrow is caused by the numerous amounts of fat cells; those cells are then used by the body during starvation for energy. The red marrow, usually found in flat bones, signals its importance to blood cell reproduction.
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