Midterm Osteology PDF

Layers of Bone APCEMA - 1122a crust ends messy Bone Growth & Oste...

Layers of Bone APCEMA - 1122a crust ends messy Bone Growth & Osteoprogenitor Cells ① periosteum ↳ outermost ↳ dense& fibrous ↳ layer composed of two layers · of the us > support & structure - bone m ③ endosteum ↳ lines medullary cavity ↳ brous membran - estadoeoprogenitor 3 chondrocyte la Osteoprogenitor cells Osteoblasts osteoclastsbea - medullary cavy the d e out " · osteogenic > bone growth - build bone on top attachment point for tendons & ligaments ⑪ of periosteum medullarycaulte ↳ the marrow ↳ "build from outside" ↳ where erythropoesis occurs (RBC production) ② corte een the periosteum & endoster a & also hemopoesis occurs here · set ↳densecompacte withstand forces Bone Density ↳ can high · provides support cortical bone compact doee - force is applied both ends dense/compact greater stress bone ↳ can withstand · Classification of Bone Structure the neck of * metaphysis is ↳ ↓ % non-mineralized ↳ Force the long bone , which contains length 4 length change ↳ where length - bone ↳ contains bone marrow grows in withstand before (e) femur , numerus , metacarpals ↳ can greater strain fracturing until they fuse at age 18 & , phalanges ↳ less rigid (more flexibility before breaking cuboldaInshaea short bones - surface ( e) ↳ carpals (wrist) &tarsals (ankle) Wolff's Law Bone Composition ↳ the more stress placed on an area mineral salts-inorganic flat bones thin somewhat curved ↳ provide rigidity bones - the - thicker muscles & tendons more bone growth will occur in where attach ↑ bone the of the y ) ↳ ↑ stress ↳ majority makeup mass a = 14 bone formation & doesn't lot of force to shatter require a fibers ↳ le) scapula & sternum collagen organic - ↳ provide flexibility & resilience Irregular bones-nospecificshapecharacterisa withstand ↳ provide strength to resist tension force acted water-makes up wet mass more upon them ↳ le) vertebrae & bones of pelvis sesamoid bones - within tendons ↳helpgudetedolgamentso of certain muscles toe ↳ le) patella , base of thumb a big