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| Consists of the bones of the skull, thorax, and vertebral column. These elements form the longitudinal axis of the body. Made of 80 bones. |
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| Includes the bones of the limbs and the pectoral and pelvic girdles that attach the limbs to the axial skeleton. Has 126 bones. |
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Also known as bone markings. Each bone in the body has characteristic external and interal features that are related to the function. Elevations or projections form where tendons and ligaments attach. Depressions, grooves, and tunnels in the bone indicate where blood vessels or nerves lie alongside or penetrate the bone.
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| Spongy Bone or Trabecular Bone |
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Definition
| Consists of an open network of struts and plates that resemble latticework with or thin covering or cortex, of compact bone. |
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They are mature bones cells that do not have the ability to divide, but yet they are the most numerous bone cell type. They also have the ability to maintain protein and mineral content of adjacent matrix. |
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They are created by the osteoblasts in the periosteum cellular layer. They also strongly connect the tendons, ligaments, and joint capsules to bone through posterium.
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Definition
| Is an incomplete cellular layer that lines the medullary cavity. It covers the spongy bone and lines central canals. It consists of simple layer of osteoprogenitor cells. This is also where the incomplete osteoclasts and osteoblast remodel the matrix. |
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Definition
| Has a thin rough parallel surface. They provide protection for the underlying soft tissue and offer extensive surface area for the attachment of skeletal muslces. |
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| Sutural Bones or Wormian Bones |
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Definition
| Small, flat irregularly shaped bones between the flat bones of the skull. There are indiviual variations in the number, shape and position of sutural bones. |
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| Bones that are relatively long and slender. |
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| Also known as the marrow cavity. This is the space within the hallow shaft. In life, it is filled with bone marrow, a highly vascular tissue. |
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| The tunnel that penatrates the diaphysis and provides access for the nutrient artery and/or the vein. |
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| Are cells that remove and recycle the bone matrix. |
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| Intramembranous Ossification |
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Definition
| Is the formation of bone within connective tissue without the prior development of cartilaginous model. |
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| also known as the shaft is long and tubular |
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| narrow zone that connects the epiphysis to the shaft of the bone. |
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Definition
| Expanded area found at each end of the bone. |
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