Structure/Fxn of MSK

Question 1

Three types of joints from least to most movement

Answer 1

fibrous (skull,interosseus membrane), cartilaginous (intervertebral discs, pubic symphysis), synovial

Question 2

synchondrosis

Answer 2

cartilaginous joint of hyaline cartilage (growth plate of growing long bone)

Question 3

amphiarthosis vs diarthrosis

Answer 3

some movement, freely movable

Question 4

abduction/adduction is done on what axis?

Answer 4

anterior-posterior

Question 5

relationship b/w mobility and stability

Answer 5

inverse

Question 6

two shapes of articulating surfaces

Answer 6

ovoid and sellar/hinge (uniaxilar)

Question 7

types of ovoid joints

Answer 7

plane (biaxial), condyloid (biaxial), spheroid (multiaxial)

Question 8

Purpose of ligaments? damage is called?

Answer 8

limit range of motion, sprain

Question 9

eversion vs inversion of ankle

Answer 9

eversion is outward, inversion is inward

Question 10

avulsion fracture

Answer 10

bone fragment tears away due to muscular contraction or ligament attachment (osgood schlater)

Question 11

aponeurosis vs tendon

Answer 11

spreads out force, concentrates force

Question 12

three types of contraction

Answer 12

concentric (shorter), eccentric (longer), isometric (no change)

Question 13

three components of muscle group

Answer 13

protagonist, antagonist, synergist