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Kathy Sheriff, RN, BSN Applications of Therapeutic Services. Skeletal System. Functions. Framework and Support Protection Blood Cell Production or Hematopoiesis Mineral (Calcium and Phosphorus)and Growth Factor Storage Movement *Sound Transduction Triglyceride Storage *Detoxification.
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Kathy Sheriff, RN, BSN Applications of Therapeutic Services Skeletal System
Functions • Framework and Support • Protection • Blood Cell Production or Hematopoiesis • Mineral (Calcium and Phosphorus)and Growth Factor Storage • Movement • *Sound Transduction • Triglyceride Storage • *Detoxification
Cartilage Characteristics Examples Ends of bones, ribs—sternum, nose, and larynx Ear and epiglottis Knee and vertebrae • Hyaline—frosted glass • Elastic—stretchy • Fibrocartilage—highly compressible, strong
206 (270) Bones: Axial and Appendicular • Long axis • Skull • Vertebral Column (7,12,5) • Rib cage (12-7/3/2) • Three main functions: • Protection • Support • Carrying body parts • Upper and lower limbs • Girdles • Two functions: • Locomotion • Interact with the environment
Other characteristics • Classified as organs because contain different tissues • Bone markings—look at bones closely, bumps, holes, and ridges • Two types: Projections and Depressions or Cavities
crest (ex iliac crest) http://quizlet.com/2915545/bio-210-unit-2-bone-markings-flash-cards/
epicondyle (ex medial epicondyle of the femur) • (projections that are sites of muscle and ligament attachment) raised area on or above a condyle
foramen (ex infraorbital foramen) • (depressions and opening s for passage of blood vessels and nerves) round or oval opening through a bone
Structure of Long Bone • Shaft--Diaphysis • Bone ends—Epiphyses • Epiphyseal Line • Membrane—Endosteum and Periosteum • Red and Yellow Marrow Page 119
Bone Formation and Growth • Skeleton begins as cartilage • Ossification • Childhood and adolescence • Early adulthood thru middle age • After age 35 • Anterior pituitary and growth hormone • Dwarfism • Giantism • Acromegaly
Bone Remodeling • Osteoblasts • Osteoclasts • Continuous cycle • Regulated by parathyroid hormone, calcium-regulating hormones, sex hormones—estrogen and adrogen, vitamin D • 20% replaced annually
Joints • Ball and Socket –shoulder and hip • Saddle—thumb • Hinge—knee, elbow, knuckle • Pivot—atlas and axis • Gliding—ankle, vertebrae • Ellipsoid—wrist
Pathophysiology Vitamin D-calcium absorption • Deficiency= • Rickets • Osteomalacia Vitamin C-collagen formation (foundation of connective tissue) Deficiency=Scurvy
Bone Fracture Repair • Hematoma Formation • Soft Callus Formation • Hard Callus Formation