joints of the upper extremity 1

Question 1

fibrous joints

Answer 1

sutures
syndesmoses
gomphoses

Question 2

cartilagenous joints

Answer 2

synchondroses

symphyses

Question 3

acromioclavicular joint

Answer 3

synovial; plane

Question 4

glenohumeral joint

Answer 4

synovial ball and socket, multiaxial

Question 5

radius and ulna with humerus

Answer 5

synovial, hinge, uniaxial

Question 6

radioulnar joint

Answer 6

synovial, pivot, uniaxial

Question 7

sternum and clavicle

4 ligaments

Answer 7

synovial, shallow saddle with articular disc,

• anterior and posterior sternoclavicular ligaments
• costoclaviclar ligament to reinforce
• interclavicular ligament
• more likely to fracture clavicle than disrupt strong joint

Question 8

scapulothoracic articulation

Answer 8

back of the scapula, soft tissue, muscle, and fasia, and bursa here
-subscapular bursa

Question 9

sternoclavicular joint actions

Answer 9

multiaxial joint:

• elevation/depression
• protraction/retraction
• rotation

Question 10

dislocation of sternoclavicular joint

Answer 10

rare bc joint is so strong
-most dislocations are the result of fractures through the epiphyseal plate at the sternal end of the clavicle in indiviuals under 25

Question 11

ankylosis of the sternoclavicular joint

Answer 11

stiffeneing fixation or fusion of SC joint

SAPHO syndrome: synovitis, acne, pustulosis, hyperostosis, osteitis

Question 12

2 parts of acromioclavicular joint

Answer 12

superior acromioclavicular ligament

inferior acromioclavicular ligament

Question 13

coracoclavicular ligaments

Answer 13

conoid ligament

trapezoid ligament

Question 14

acromioclavicular joint dislocation

Answer 14

land with hand and arm extended like falling off of a bull

Question 15

separated shoulder
Grade 1
Grade 2
Grade 3

Answer 15

1) acromioclavicular ligament sprain
2) acromioclavicular ligament tear
3) acromioclavicular and coracoclavicular ligaments are torn (piano key sign)