Joint movements

Question 1

4 types of movements at synovial joints

Answer 1

1. gliding
2. angular
3. circular
4. “special movements”

Question 2

gliding movements

Answer 2

• tend to happen at plane joints
• many planes, limited by CT or bony features

E.g.
- carpals
- inferior and superior articular processes of vertebrae

Question 3

angular movements

Answer 3

one linear structure bent relative to another, creating an angle

1. FLEXION, EXTENSION
2. ABDUCTION, ADDUCTION

Question 4

plantar vs dorsiflexion

Answer 4

plantar - point foot
dorsi - toes up

Question 5

types of flexion extension

Answer 5

flexion
- lateral
- dorsiflexion, plantarflexion
extension
- hyperextension (extension beyond AP)

Question 6

ulnar vs radial deviation

Answer 6

unlar: adduction of hand
radial: abduction of hand
*relative to forearm

Question 7

circular movement types

Answer 7

1. ROTATION
2. PRONATION, SUPINATION
3. CIRCUMDUCTION

Question 8

pronation movement in bones

Answer 8

head of radius rotates over top of ulna

Question 9

types of special movements

Answer 9

1. DEPRESSION/ELEVATION
2. PROTRACTION/RETRACTION
3. OPPOSITION/REPOSITION
   - opposition: thumb + little finger together
   - reposition: resturn to neutral
4. INVERSION/EVERSION
   - inversion: plantar surface of food towards midline
   - eversion: away from midline