The outer shell of the long bone is made of cortical bone also known as up of yellow marrow in the adult and red marrow in the child.
The human skeleton is the internal framework of the human body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together. The bone mass in the skeleton reaches maximum density around age 21. "Bone structure" and "skeletal system" redirect here.
Skeletal System Anatomy in Adults. Updated: Jul 28, 2015. Author: Murali Poduval, MBBS, MS, DNB; Chief Editor: Thomas R Gest, PhD more Share; Email.
The long bone in a child is divided into four regions: the diaphysis (shaft or primary ossification centre), metaphysis (where the bone flares), physis (or growth.
anatomy. Written By: Warren Andrew. See Article History. Article Contents While the adult human skeletal system includes 206 bones, the infantile skeletal .