Joints upper limb Flashcards Preview

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Flashcards in Joints upper limb Deck (12):
1

sternoclavicular joint

- ball and socket
- B/w sternal facet of clavicle and clavicular notch on sternum.
- Has a capsule thats attached to th circumference of the articular srfc.
- Has an articular disc

Ligaments:
- Ant and post sternoclavicular lig
- interclavicular lig
- costoclavicular lig

Movements:

saggital axis: Elevation and depression 0-60
vertical axis: protraction and retraction
transverse axis: forward and backward rotation 0-30

2

Acromioclavicular joint

- Restricted ball and socket
- B/w clacicular facet of acromion and acromial gacet on clavicle.
- Has a capsule thats attached to th circumference of the articular srfc.
- incompleate articular disc (50% of people)

Ligaments:
- Acromioclavicular lig
- Coracoacromial lig
- Coracoclavicular
- trapezoid lig
- conoid lig

Movements:
-Vertical axis: scapula does protraction/retraction
- frontal plane: scapula does elevation/depssion

3

Glenohumeral joint

-Ball and socket
- b/w head of humerus and glenoid cavity of scapula
- Fibrocartilage labrum enlarging the cavity
- hyaline cartilage over the articular srfces
- fibrous capsule around head of humerus and neck of scapula. Has an opening for the tendon of long head of biceps.

Ligaments:
-Glenohumeral (sup,middle,inf)
- coracohumeral
- coracoacromial
-transverse

Bursae:
- subscapular
- subacromial

Movements:
Saggital axis: Abduction(0-90) Adduction (0-75)--scapula move we have elevation 130
Transverse axis: Anteflexion(0-90) Retroflexion (0-50)
vertical axis: Inward and outward rotation (0-90)
All movements together-->circumduction

Rotator cuff muscles:
SITS

4

Elbow joint

Hinge joint made of three joints:
- Humero-ulnar (trochlea and trochlea of humerus)
- Humero-radial, ball&socket ( capitullum and head of
radius)
- Prox radio-ulnar (pivot) head of radius w/ radial notch
on ulna.

Hyaline cartilage above the articular srfces
Capsule at margins of capitullum and trchlea to olecranon fossa. Has synovial membrane lining the inside.

Ligaments:
- radial collateral
- Ulnar collateral
- Annular lig

Bursae:
- subtendinous
- subcutaneous
- intratendinous
- bicioitoradial

Movements:
- transverse axis: flexion (0-145) / Extension( 0-5)

Radio-ulnar-->supination and pronation (0-90)

5

Distal-radioulnar joint

-Pivot
- B/w head of ulna and ulnar notch on radius
- has a fibrocartilage articular disc
Ligaments:
Ant/Post radioulnar ligament
Movements:
- Supination/pronation (0-90)

6

The radiocarpal joint (wrist)

- Ellipsoid/condyloid
- B/w carpal articular srfc of radius and scaphoid,lunate, triquetrum.
- Has a fibrous capsule with synovial membrane

Ligaments:
-Radial collateral lig
- Ulnar collateral lig
- Dorsal/palmar radiocarpal lig
- Dorsal/ palmar ulnocarpal lig

Movements:
- Transverse axis: palmarflexion dorsiflexion(0-80)
- Ulnar abduction (0-45)
- Radial abduction (0-15) triquetrum looses contact

7

Intercarpal joint

- Plane
- b/w carpal bones
- joint capsule made by intercarpal and carpometacarpal joint, (not 1st carbopetacarpal joint of thumb)

Ligaments:
-Dorsal/palmar IC lig
- interossious IC lig

8

Carpometacarpal joint

- Plane joint except 1st CMC -->saddle joint
- distal srfc of carpal with bases of metacarpals
- The first 4 CMC have same capsule and 1st CMC of thumb seperate loose joint.

Ligaments:
- Palmar/dorsal CMC lig
- Pisometacarpal lig

Movement: By thumb
- Abduction(0-70) Adduction
- opposition/reposition

Flexion and extension occus in MCP and IP joint.

9

Intermetacarpal joint

- plane
- B/w the the bases of 2-5 metacarpal bones
- Lig:
- Dorsal/palmar IMC
- Interossious IMC lig
- No movement

10

Metacarpophalangeal joint

- Ball&socket
- Head of metacarpal and bases of prox phalanges

Ligaments:
- Med/lat collateral lig
- Palmar lig (allow long flexor tendon to glide in)
- superficial and deep transverse MC lig

Movements:
- Flexion/extension
- abduction/adduction (away from midline) circumduction
- 1st MP joint for thumb flexion(0-45)/extension (0-15)

11

Interphalangeal joint

- Hinge
- head of phalangeas and bases of distal phalange
- Fibrous capsule w/ synovial membrane

Ligaments:
- Collateral lig
-Palmar ligament

Movements:
- Transverse axis: Flexion/extension

12

All joints of upper limb

-SC
- AC
-GH
-EB
- DRU
- RC
- IC
-IMC
- CMC
- MCP
-IP