NURS312 Lecture Notes - Lecture 11: Muscular Dystrophy, Muscle Atrophy, Skeletal Muscle
18 Dec 2018
School
Department
Course
Professor
Document Summary
Tearing down of small parts of bones and then reforming. Reabsorption - tearing down by osteoclasts within the central portion of each bone. Existing bone is reabsorbed and new bone is laid down to replace this. See it a lot in children, and in adults after fractures. Reverses in aging as we decrease bone density: remodeling is important in repair of fractures/wounds. Callus is formed - which is woven fibroblasts. Increase in tissue pressure within the closed fascial space resulting in tissue ischemia. Fascial space - where the bone injury is; the muscles are right there. Pressure increases and clamps down on blood supply; causes muscle tissue surrounding the bone to die. Recognized symptom - pain is out of control. Goes for er surgery for fasciotomy - release of fascial space; if not done immediately, lose use of that limb.
