Joints of the Shoulder And Upper Extremity

Question 1

Glenohumeral Joint

Answer 1

Articulating Surfaces:
-Glenoid fossa of scapula
-Head of humerus

Classification:
-Multiaxial ball and socket

Movements:
-Flexion and extension
-Abduction and adduction
-Horizontal abduction and adduction
-Internal and external rotation

Question 2

Acromioclavicular joint

Answer 2

Articulating surfaces:
-Acromial facet of clavicle
-Medial acromion

Classification:
-Non-axial plane

Movements:
-Superior and inferior rotation
-Protraction and retraction
-Upward tip

Question 3

Sternoclavicular joint

Answer 3

Articulating surfaces:
-Sternal facet of clavicle
-Superolateral manubrium
-Superior aspect of costal cartilage of rib 1

Classification:
-Multi-axial saddle

Movements:
-Elevation and depression
-Protraction and retraction
-Rotation

Question 4

Radiohumeral Joint

Answer 4

Articulating surfaces:
-Capitulum of humerus
-Head of radius

Classification:
-Uniaxial hinge

Movements:
-Flexion and extension

Question 5

Ulnohumeral joint

Answer 5

Articulating surfaces:
-Trochlea of humerus
-Trochlear notch of ulna

Classification:
-Uniaxial hinge

Movements:
-Flexion and extension

Question 6

Proximal Radioulnar Joint

Answer 6

Articulating surfaces:
-1/5 head of radius
-Radial notch of ulna

Classification:
-Uniaxial pivot

Movements:
-Pronation and supination

Question 7

Distal Radioulnar Joint

Answer 7

Articulating surfaces:
-Ulnar notch of radius
-Head of ulna

Classification:
-Uniaxial pivot

Movements:
-Pronation and supination

Question 8

Radiocarpal Joint

Answer 8

Articulating surfaces:
-Distal radius and trifolar cartilage/disc
-Scaphoid, lunate and in extreme ulnar deviation triquetrum

Classification:
-Biaxial condyloid

Movements:
-Flexion and extension
-Radial and ulnar deviation

Question 9

Middle/intermediate radioulnar Joint

Answer 9

Articulating surfaces:
-Medial interosseous border of radius
-Lateral interosseous border of ulna

Classification:
-Fibrous syndesmosis, amphiarthroidal

Movements:
-Pronation and supination

Question 10

Intercarpal Joint

Answer 10

Articulating surfaces:
-Proximal row of carpals
-Distal row of carpals

Classification:
-Non-axial plane

Movements:
-Gliding motions with flexion, extension, radial, and ulnar deviation

Question 11

1st Carpometacarpal Joint

Answer 11

Articulating surfaces:
-Distal trapezium
-Base of 1st metacarpal

Classification:
-Biaxial saddle

Movements:
-Flexion and extension
-Abduction and adduction
-Opposition

Question 12

2nd-5th Carpometacarpal Joints

Answer 12

Articulating surfaces:
-Base of 2nd MC with trapezoid
-Base of 3rd MC with capitate
-Base of 4th MC with capitate and hamate
-Base of 5th MC with hamate

Classification:
-2-4 non-axial plane
-5 biaxial saddle

Movements:
2-4 - flexion and extension

5 - Flexion and extension
-Abduction and adduction

Question 13

Intermetacarpal Joints

Answer 13

Articulating surfaces:
-Adjacent bases of metacarpals 2-5

Classification:
-Non-axial plane

Movements:
Gliding with movement of CMC joints

Question 14

Metacarpophalangeal Joints

Answer 14

Articulating surfaces:
-Head of metacarpals
-Bases of proximal phanlges

Classification:
-Biaxial condyloid

Movements:
-Flexion and extension
-Abduction and adduction

Question 15

1st Interphalangeal Joint

Answer 15

Articulating surfaces
-Heads of proximal
-Bases distal

Classification:
-Uniaxial hinge

Movements:
-Flexion and extension

Question 16

Proximal Interphalangeal And Distal Interphalangeal Joints 2-5

Answer 16

PIP Articulating surfaces:
-Heads of proximal phalanges
-Bases of intermediate phalanges

DIP Articulating surfaces:
-Heads of intermediate phalanges
-Bases of distal phalanges

Classification:
-Uniaxial hinge

Movements:
-Flexion and extension