Arthrokinematics Of The Shoulder And Upper Extremity

Question 1

Sternoclavicular Protraction And Retraction

Answer 1

-Convex head of humerus moves on concave glenoid fossa in open kinetic chain
-Roll and glide in opposite direction

-Concave glenoid fossa moves on convex head of humerus in closed kinetic chain
-Roll and glide in same direction

Question 2

Sternoclavicular Elevation And Depression

Answer 2

-Convex sternal facet of calvicle moves on concave portion of manubrium
-Roll and glide in opposite directions

Question 3

Glenohumeral Joint Arthokinematics

Answer 3

-Convex head of humerus moves on concave glenoid fossa in open kinetic chain
-Roll and glide in opposite direction

-Concave glenoid fossa moves on convex head of humerus in closed kinetic chain
-Roll and glide in same direction

Question 4

Ulnohumeral Flexion And Extension

Answer 4

-Concave trochlea notch of ulna moves on convex trochlea of humerus
-Roll and glide in same direction

Question 5

Radiohumeral Flexion And Extension

Answer 5

-Concave head of radius moves on convex capitulum
-Roll and glide in same direction

Question 6

Proximal Radioulnar Supination And Pronation

Answer 6

-Convex head of radius move son concave radial notch of ulna
-Roll and glide in opposite directions

Question 7

Distal Radioulnar Supination And Pronation

Answer 7

-Concave ulnar notch of radius moves over convex ulna
-Roll and glide in same direction

Question 8

Radiocarpal Flexion And Extension And Radial And Ulnar Deviation

Answer 8

-Convex proximal aspect of scaphoid, lunate and triquetrum move on concave distal radius and disc

Question 9

1st Carpometacarpal Flexion And Extension

Answer 9

-Concave base of 1st metacarpal moves on convex distal trapezium
-Roll and glide in same direction

Question 10

1st Carpometacarpal Abduction And Adduction

Answer 10

-Convex base of 1st metacarpal moves on concave distal trapezium
-Roll and glide in opposite directions

Question 11

5th Carpometacarpal Flexion And Extension

Answer 11

-Concave 5th metacarpal moves on convex articular surface of hamate
-Roll and glide in same direction

Question 12

5th Carpometacarpal Abduction And Adduction

Answer 12

-Convex base of 5th metacarpal moves on concave articular surface of hamate
-Roll and glide in opposite directions

Question 13

Metacarpophalangeal Flexion, Extension, Abduction, And Adduction

Answer 13

-Concave base of proximal phalanx moves on convex head of metacarpal
-Roll and glide in same direction

Question 14

Proximal Interphalangeal And Distal Interphalangeal Flexion And Extension

Answer 14

-Concave base of distal phalanx moves on convex head of proximal phalanx
-Roll and glide in same direction