![]() ![]() ![]() Red bone marrow fills the spaces between the spongy bone in some long bones. The wider section at each end of the bone is called the epiphysis (plural = epiphyses), which is filled internally with spongy bone, another type of osseous tissue. The outer walls of the diaphysis ( cortex, cortical bone) are composed of dense and hard compact bone, a form of osseous tissue.įigure 6.3.1 – Anatomy of a Long Bone: A typical long bone showing gross anatomical features. Inside the diaphysis is the medullary cavity, which is filled with yellow bone marrow in an adult. The diaphysis is the hollow, tubular shaft that runs between the proximal and distal ends of the bone. Gross Anatomy of BonesĪ long bone has two main regions: the diaphysis and the epiphysis ( Figure 6.3.1 ). This section will examine the gross anatomy of bone first and then move on to its histology. Later discussions in this chapter will show that bone is also dynamic in that its shape adjusts to accommodate stresses. Bone is hard and many of its functions depend on that characteristic hardness. Describe how bones are nourished and innervatedīone tissue (osseous tissue) differs greatly from other tissues in the body. ![]()
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