Obstetrics notes

Apr 16th, 2015
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Skeletal SystemComposed of the bodys bones andassociated ligaments, tendons, andcartilages.Functions:1.Support2.The bones of the legs, pelvic girdle, and vertebralcolumn support the weight of the erect body.The mandible (jawbone) supports the teeth.Other bones support various organs and tissues.ProtectionThe bones of the skull protect the brain.Ribs and sternum (breastbone) protect the lungsand heart.Vertebrae protect the spinal cord.Skeletal SystemFunctions:3.Movement4.Skeletal muscles use the bones as levers tomove the body.Reservoir for minerals and adipose tissue99% of the bodys calcium is stored in bone.85% of the bodys phosphorous is stored inbone.Adipose tissue is found in the marrow ofcertain bones.5.What is really being stored in this case? (hint it starts with an E)HematopoiesisA.k.a. blood cell formation.All blood cells are made in the marrow ofcertain bones. There are 206 named bones inthe human body. Each belongs to one of 2 largegroups: Axial skeleton Forms long axis of the body. Includes the bones of the skull,vertebral column, and rib cage. These bones are involved inprotection, support, andcarrying other body parts. Appendicular skeleton Bones of upper & lower limbsand the girdles (shoulder bonesand hip bones) that attach themto the axial skeleton. Involved in locomotion andmanipulati

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