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Fracture hematoma
- step 1 of Fracture healing
- blood vessels bleed until a fracture hematoma (clot) pccurs.
- 6-8 hours after injury.
- bone cells die producing debris that phagocytes ( macrophages) clean up
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fibrocartilaginous callus
- step 2 of fracture healing
- fibroblast make collagen fibers
- chrondoblasts make more fibrocartilginous callus
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bony callus
- step 3 of fracture healing
- osteoblasts produce spongy bone trabeclae (bony callus)
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Compact bone
- step 4 of fracture healing
- compact bone replaces spongy bone by osteoclasts
- osteoblasts lay down osteocytes
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open fracture
peirces skin
-
simple fracture
doesnt peirce the skin
-
comminuted fracture
crushed bone
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green stick fracture
in kids, partial fracture
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impacted
bone goes into another
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-
colles
fracture of radius
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synarthroses
immovable, skull
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amphoarthroses
slightly movable vertebral
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diarthroses
freely movable, limb
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fibrous joints
sutures, syndesmoses, and gomphoses
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cartiaginous joints
synchodroses and symphyses
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synovial joints
- have synovial fluid for gliding, in all movable joints
- fibrous
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suture
- immovable joint
- site of growth and shock absorbtion in skull
-
syndesmoses
- some movement
- fibrous
- between scapula and clavicle
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gomophoses
- no movement, joint between roots of teeth and the socket
- fibrous
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synchondroses
- immovable
- where rib meets the sternum
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symphyses
- fibrocartilaginous
- slightly movable
- two sides of madibles fuse making the mental symphysis
-
gliding/plane joints
between tarsus of the foot
-
hinge
between trochlea of humerus and trochlear notch of ulna
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