Bones » Human Hand Bone Anatomy Shoulder Anatomy
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FACT: The cross-section of a hair strand is made up of 3 key layers. The outer layer is called the cuticle, within that is the cortex (which contains the keratin), while the center layer is called the medulla.

Human Hand Bone Anatomy Shoulder Anatomy

You may think involving bone for a hard, heavy material, however only one type of bone is much like this. This dense, hard bone is referred to as cortical bone. Cortical your bones are generally the “structure” bones.

Human Hand Bone Anatomy Shoulder Anatomy Pictures

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