Wvsom Msk - 9/10/14 - Ds Joints Of The Upper Limb

Front 1

List the 3 types of joints:

Back 1

Fibrous, Cartilaginous, Synovial.

Front 2

Describe Fibrous joints:

Back 2

Bony elements united by fibrous tissue, generally the least mobile of joints

Types include syndesmosis & gomphosis.

Front 3

Describe syndesmosis:

Back 3

bony elements united by a sheet of fibrous tissue.

e.g. Radio-ulnar joint.

Front 4

Describe gomphosis:

Back 4

peg-like bony elements stabilized by fibrous tissue.

e.g. dento-alveolar joint

Front 5

Describe the cartilaginous joint:

Back 5

bony elements united by cartilage.

Two types: synchondrosis & symphysis.

Front 6

Describe Synchondrosis:

Back 6

Bony elements united by hyaline cartilage (primary cartilaginous joints)

e.g. Developing long bone epiphysis

Front 7

Describe symphysis:

Back 7

bony elements united by fibrous cartilage (secondary cartilaginous joints)

e.g. intervertebral joints

Front 8

Describe synovial joints:

Back 8

Joint containing an articular cavity containing synovial fluid and are usually reinforced by ligaments.

Types include hinge, pivot, saddle, condylar, plane, ball & socket.

Front 9

Describe the characteristics of each type of synovial joint:

Back 9

Hinge: Flexion/extension; E.g. Elbow joint

Pivot: Rotation; E.g. Atlantoaxial joint

Saddle: Biaxial; E.g. Pollex joint

Condylar: Biaxial; E.g. Metacarpophalangeal joint

Plane: Gliding; E.g. Acromioclavicular joint

Ball-and-socket: Multiaxial; E.g. Coxofemoral joint

Front 10

What type of joint is the Sternoclavicular joint and list the ligaments involved:

Back 10

Synovial joint with Costoclavicular ligaments & Anterior sternoclavicular ligaments.

Front 11

Describe the joint type & ligaments involved with the Acromioclavicular joint.

Back 11

Synovial joint with Acromioclavicular, Coracoclavicular, and Coracoacromial ligaments.

Front 12

What two ligaments comprise the coracoclavicular ligament?

Back 12

Trapezoid & Conoid ligaments.

Front 13

Describe the Glenohumeral joint:

Back 13

Synovial Ball & Socket joint that is very mobile but unstable.

Contents include the Coracoacromial arch, Capsule of glenohumeral joint, Rotator cuff muscles, Tendon of the long head of the biceps brachii muscle, and the subacromial bursa.

Supplied by the post. circumflex humeral artery

Front 14

Describe the Elbow joint:

Back 14

Synovial joint with no primary blood supply that contains the Ulnar collateral & radial collateral ligaments.

The subcutaneous, intratendonous, and subtendonous bursae protect the joint

Front 15

Describe the radio-ulnar joint:

Back 15

Allows for supination & protonation.

The annular ligament keeps the radial head in place, the interosseous ligament (syndesmosis) lies between the shafts of the radial & ulna.

The distal radio-ulnar joint is synovial with a fixed ulna, and an articular disc that unites the radius & ulna.

Front 16

Describe the main vessels supplying the shoulder & elbow:

Back 16

Shoulder: posterior circumflex humeral artery.

Elbow: no primary blood supply, maintained by collaterals.