ANSC 23000 Lecture Notes - Lecture 7: Osteoid, Ossification, Foramen Magnum
7 Oct 2018
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Document Summary
Osteology: study of the structure and function of the skeleton and bony structures. Bone: provide rigid structure to the body and shield internal organs from damage. House bone marrow and maintain body"s reservoirs of calcium and phosphorus. Remodeling: old bone tissue is constantly replaced with new bone tissue. Girdle: flat broad bone that connects the four limbs to the spine. Structural types of bone: cortical (compact) bone. Contains yellow marrow: cancellous (spongy or trabecular) bone. Consists of meshwork of bony bars (trabeculae) with many interconnecting spaces containing bone marrow. Consists of a central portion or shaft and two ends called epiphyses. Epiphyseal plate: where new cartilage is laid down and then gradually converted to bone. Growth plate or epiphyseal line: marks the place where increase in length of the bone occurred: irregular bone. Femur, humerus, radius, ribs, ulna, metacarpals: short bones. Carpi, patella, hammer, vertebrae, jaw, tarsi: flat bones. Scapula, clavicle, face, sternum, parietal, temporal: the smallest bone.
