Joint Of Upper Extremity

Front 1

Shoulder Joint (Glenohumeral)
*type*

Back 1

ball and socket

Front 2

Shoulder Joint (Glenohumeral)
*bones* 2

Back 2

1. head of humerus
2. glenoid fossa of scapula & glenoid labrum

Front 3

Shoulder Joint (Glenohumeral)
*movements*

Back 3

Flexion
Extension
Abduction Medial Rotation
Adduction Lateral Rotation
Circumduction

Front 4

Shoulder Joint (Glenohumeral)
*ligaments* 5

Back 4

1. capsular
2. Glenohumeral
3. Transverse Humeral
4. Coracohumeral
5. Coracoacromial

Front 5

Shoulder Joint (Glenohumeral)
* Contents

Back 5

1.Tendon of the long head of the biceps brachii
2. Transverse humeral ligament

Front 6

Shoulder Joint (Glenohumeral)
Coracoacromial arch

Back 6

consists of the coracoids process, coracromial ligament and acromiom. Forms a secondary socket for the head of the humerus

Front 7

Shoulder Joint (Glenohumeral)
*Muscles crossing the joint* (5)

Back 7

Subscapularis
Supraspinatus
Infraspinatus
Teres Minor
Biceps Brachi, long head

Front 8

Shoulder Joint (Glenohumeral)
-Sensory nerve Supply (3)

Back 8

Suprascapular N
Axillary
Lateral Pectoral

Front 9

Acromioclavicular Joint (AC)
-type

Back 9

gliding with articular disk

Front 10

Acromioclavicular Joint (AC)
-bones

Back 10

Distal end of clavicle and acromion process of scapula

Front 11

Acromioclavicular Joint (AC)
-Ligaments (3)

Back 11

joint capsule
acromioclavicular
coracoclaviular

Front 12

Acromioclavicular Joint (AC)
-moements

Back 12

sliding to accommodate scapula
Rotation (very small amount)

Front 13

Acromioclavicular Joint (AC)
-muscles

Back 13

none specific for this joint

Front 14

Acromioclavicular Joint (AC)
-Functions *3*

Back 14

Protraction and retraction of scapula are dependent on AC Joint
1. vertical movement of scapula on the thoracic wall when pectoral girdle rises and falls
2. anterior and posterior movement of scapula
3. upward rotation of scapular necessary when arm is abducted

Front 15

Sternoclavicular (SC) Joint
-type

Back 15

gliding with disk

Front 16

Sternoclavicular (SC) Joint
-bones

Back 16

proximal end of cavicle and manubrium of sternum

Front 17

Sternoclavicular (SC) Joint
-Articular cartilage

Back 17

really strong attached to clavicle superior and 1st costal cartilage inferiorly

Front 18

Sternoclavicular (SC) Joint
-ligament *4*

Back 18

articular capsule
Sternoclavicular
Interclavicular
Costoclavicular

Front 19

Sternoclavicular (SC) Joint
-motions 2

Back 19

sliding with some rotation
1. elevation of clavicle
2. protraction of scapula

Front 20

Sternoclavicular (SC) Joint
-muscles

Back 20

most muscles moving clavicle and scapula also move this joint

Front 21

Sternoclavicular (SC) Joint
-function

Back 21

prevents medial displacement of clavicle

Front 22

Elbow Joint
-type

Back 22

hinge joint

Front 23

Elbow Joint
*bones

Back 23

1. distal end of humerus includes trochlea and on the medial side.
2. proximal end of ulna includes the trochlear notch

Front 24

Elbow Joint
-humeroulnar joint

Back 24

between the trochlear notch of the ulna and the trochlea of the humerous

Front 25

Elbow Joint
-movement (2)

Back 25

flexion and extension

Front 26

Elbow Joint
Articular capsule

Back 26

attaches proximally all around articular surface of humerus and distally to neck of radius, coronoid process and olecranon of ulna.

Front 27

Elbow Joint
-ligaments (2)

Back 27

1. Medial (ulnar) collateral
2. Lateral (radial) collateral

Front 28

Elbow Joint
-muscles crossing the joint (6)

Back 28

flexors- biceps brachii and brachialis assisted by pronator teres and brachioradialis.

extensors- triceps brachii and anconeus

Front 29

Elbow Joint
-innervation (4)

Back 29

musculocutaneous, radial, median, and ulnar

Front 30

Proximal Radioulnar Joint
-type

Back 30

trochoid or pivot

Front 31

Proximal Radioulnar Joint
-bones (2)

Back 31

radius- head
ulna- radial notch

Front 32

Proximal Radioulnar Joint
-motions

Back 32

pronation and supination of hand

Front 33

Proximal Radioulnar Joint
-ligaments

Back 33

annular ligament 4/5's of the circle and then the radial notch closes off

Front 34

Injury to the Proximal Radioulnar Joint

Back 34

grabbing children below the elbow, can dislocate the head of the radius but doesnt tear the ligament

Front 35

Proximal Radioulnar Joint
-muscles (4)

Back 35

pronators teres and pronator quadratus

supinator and biceps brachii

Front 36

Middle Radioulnar Joint
-type

Back 36

syndesmosis known as interosseous membrane

Front 37

Middle Radioulnar Joint
-function

Back 37

provides no movement; serves to transfer force recieved from the hand via radius to the ulna (sends to stronger side of forearm)- assists in maintaing the socket of the wrist joint

Front 38

Distal Radioulnar Joint
-type

Back 38

trochoid or pivot

Front 39

Distal Radioulnar Joint
-bones (2)

Back 39

ulna- head plus the ulnar disk

radius-ulnar notch

Front 40

Distal Radioulnar Joint
-motions and muscles

Back 40

same as proximal radioulnar joint
-pronation and supination
-pronator teres, pronator quadratus
-supinator, bicheps brachii

Front 41

Distal Radioulnar Joint
-ligaments (2

Back 41

distal radioulnar- anterior and posterior
Attachements of disk to fovea of ulna and edges of ulnar notch of the radius.

Front 42

Wrist or Radiocarpal Joint
-type

Back 42

ellipsoid

Front 43

Wrist or Radiocarpal Joint
bones

Back 43

radius- distal surface
ulnar disk
carpals-scaphoid, lunate, and triquetrum

Front 44

Wrist or Radiocarpal Joint
-motions (4)

Back 44

flexion
extension
abduction
adduction

Front 45

Wrist or Radiocarpal Joint
-ligaments

Back 45

joint capsule
dorsal and palmar radiocarpal ligaments
radial collateral
ulnar collateral

Front 46

Wrist or Radiocarpal Joint
-muscles crossing joint (8)

Back 46

flexor carpi radialis, flexor carpi ulnaris, palaris longus, long flexors of thumb and fingers

extensor carpi radialis longus and brevis, extensor carpi ulnaris, extensors of thumb and fingers

Front 47

Transverse Carpal Joint
-type

Back 47

gliding

Front 48

Transverse Carpal Joint
-bones

Back 48

proximal row of carpals and distal row of carpals (trapezium, trapezoid, capitate, and hamate

Front 49

Transverse Carpal Joint
-motions

Back 49

nothing independent, supplemental to motions of wrist

Front 50

Transverse Carpal Joint
-ligaments

Back 50

joint capsule reinforced by dorsal and palmar ligaments

Front 51

Transverse Carpal Joint
-muscles

Back 51

any muscle crossing this joint can move it

Front 52

Carpometacarpal Joint
-type (2

Back 52

1. saddle joint with three axes of motion
2. 2nd through 5th -gliding joints

Front 53

Carpometacarpal Joint
motions (3)

Back 53

1. 1st- flexion, extension, add, abduction, medial & lateral
2. 2nd & 3rd- very limited, are of strength in hand
3. 4th & 5th- some flexion and extension increases grasp

Front 54

Metacarpophalangeal Joints (MCP)
-types

Back 54

condyloid

Front 55

Metacarpophalangeal Joints (MCP)
bones (2)

Back 55

metacarpals (1-5)
proximal phalanges (1-5)

Front 56

Metacarpophalangeal Joints (MCP)
motions (2 axes)

Back 56

flexion and extension
adduction and abduction

Front 57

Metacarpophalangeal Joints (MCP)
ligaments

Back 57

joint capsule reinfoced by dorsal and palmar ligaments with heavy transverse metacarpal ligament on palmar side

Front 58

Metacarpophalangeal Joints (MCP)
muscles (4)

Back 58

1. flexion and ext- long flexors and extensors of digits
2. flexion - lumbricales
3. abduction - dosal interosseous muscles (dab
4. adduction - palmar interosseous muscles (PAD)

Front 59

Interphalangeal Joints
-type

Back 59

condyloid

Front 60

Interphalangeal Joints
PIP

Back 60

proximal phalanges (1-5) articulate with middle phalanges forming these joints

Front 61

Interphalangeal Joints
-DIP

Back 61

middle phalanges (2-5) articulate with distal phalanges forming these joints

Front 62

Interphalangeal Joints
-motions

Back 62

flexion and extension

Front 63

Interphalangeal Joints
-muscles

Back 63

all extensor muscles via extensor hood mechanism, lumbricales by insertion into extensor tendons

DIP exclusively by flexor digitorum profundus; PIP by both digital flexors