Upper Extremity Arthrology

Question 1

How do we classify joints?

Answer 1

Synarthrodial
Amphiarthrodial
Diarthrodial

Question 2

What is a synovial joint?

Answer 2

saddle joint
ball-and-socket
bicondylar
hinge
planar

Question 3

Describe the motions that take place at each type of joint.

Answer 3

Synarthrodial- no joint movement
Amphiarthrodial- slight joint movement
Diarthrodial- free joint movement

Question 4

Describe the classification of all identified joints.

Answer 4

Temperomandibular: hinge
Atlanto-occipital: condylar
Atlanto-axial: pivot
Castotransverse:
Castovertebral:
Sternoclavicular: saddle
Acromioclavicular: planar
Glenohumeral: ball-and-socket
Elbow (cubital): hinge
Proximal + Distal Radioulnar: pivot
Radiocarpal: ellipsoid (condylar)
Intercarpal: planar
Carpometacarpal: saddle (digit 1), planar (digits 2-5)
Metacarpophalangeal: condylar
Interphalangeal: hinge