Week 7 : Musculoskeletal Flashcards
ankylosis
Stiffness or fixation of a joint, usually resulting from
destruction of articular cartilage and subchondral bone
with subsequent tissue scarring
ankylosis etiology
chronic joint inflammation
atrophy
Decrease in the size of a tissue or organ caused by a
reduction in the number or size of the individual cells;
characterized by decreased circumference and flabby
appearance and leading to decreased function and tone
atrophy etiology
Muscle denervation, contracture, and prolonged disuse
as a result of immobilization
contracture
Abnormal, usually permanent flexion and fixation of a
muscle or joint; resistance to movement is a result of
fibrosis of supporting soft tissues
contracture etiology
Shortening of muscle or ligaments, tightness of soft
tissue, incorrect positioning of immobilized extremity
crepitation
Crackling sound or grating sensation as a result of friction
between bones, broken bone, or cartilage bits in joint
crepitation etiology
Fracture, dislocation, chronic inflammation, osteoarthritis
kyphosis
Forward bending of thoracic spine: exaggerated thoracic
curvature
kyphosis etiology
Poor posture, tuberculosis, arthritis, osteoporosis,
growth disturbance of vertebral epiphyses
lordosis
Lumbar spinal deformity that results in exaggerated
lumbar curvature
lordosis etiology
Secondary to other spinal deformities, muscular
dystrophy, obesity, flexion contracture of hip,
congenital dislocation of hip
scoliosis
Deformity resulting from lateral S-shaped curvature of the
thoracic and lumbar spine
scoliosis etiology
Idiopathic or congenital condition, fracture or
dislocation, osteomalacia
What are the bone cells that function in the breakdown of bone tissue (resorption) called?
osteoclasts