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BONE (FUNCTIONS (PROTECTION of organs, SHAPE, MOVEMENT, BLOOD PRODUCTION,…
BONE
FUNCTIONS
PROTECTION of organs
SHAPE
MOVEMENT
BLOOD PRODUCTION
MINERAL STORAGE
SOUND TRANSDUCTION
ACID-BASE BALANCE
CHARACTERISTICS
STRONG & RIGID
VASCULAR
OSTEOCYTE cells
COLLAGEN fibres
INTRACELLULAR MATRIX
TYPES
LONG
ARMS & LEGS
SHORT
WRIST & ANKLES
FLAT
SKULL
SESAMOID
KNEECAP
IRREGULAR
SPINE
DEVELOPMENT
BEFORE BIRTH
COMPLETE = 25 yrs old
INTRAMEMBRANOUS OSSIFICATION
FORMATION OF FLAT BONES
ENDOCHONDRIAL OSSIFICATION
FORMATION OF LONG BONES
BONE DISEASES
OSTEOPOROSIS
PAGET'S DISEASE
RICKET'S
OSTEOMALACIA
BONE TUMOURS
METASTASES (malignant)
EXTOSES (benign)
OSTEOSARCOMA (rapid growing)
CHONDROSARCOMA (slow growing)
COMPOSITION
20% WATER
30-40% ORGANIC
40-50% INORGANIC
STRUCTURE
CELLS
OSTEOBLASTS
OSTEOCLASTS
OSETOCYTES
MATRIX
ORGANIC
INORGANIC
PERIOSTEUM
TISSUE
COMPACT
CENTRAL HAVERSIAN CANAL
SPONGY
BONE HEALING
4 STAGES
DELAYING FACTORS
INFECTION
OLD AGE
DEFICIENT BLOOD SUPPLY
MEDICATIONS
TISSUE FRAGMENTS
MOBILITY
BONE ABNORMALITIES
OSTEOGENESIS IMPERFECTA
ACHONDROPLASIA
BONE INFECTION
OSTEOMYELITIS