Joints Of Upper Extremity Flashcards
Where is the sternoclavicular joint
Bw the sternal end of the clavicle and the manubrium of the sternum + first costal cartilage
Most joints of upper extremity are synovial except which one is syndesmosis?
Middle radioulnar joint
What produces the forward movement of the sternoclavicular joint
Serratus anterior
What produces the backward movement of the sternoclavicular joint
Trapezius
Rhomboids
What produces the elevation of the sternoclavicular joint
Trapezius
Sternocleidomastoid
Levator scapulae
Rhomboids
What produces depression of the sternoclavicular joint
Pectoralis minor
Subclavius
What are the two ligaments that support the sternoclavicular joint
Costoclavicular
Sternoclavicular
Where is the acromioclavicular joint located
Between the acromion process and the lateral end of the clavicle
What are the two ligaments associated with the acromioclavicular joint
Superior/inferior acromioclavicular
Coracoclavicular
A “separated shoulder” is really what injury anatomically
Rupture of the acromioclavicular and coracoclavicular
Where is the shoulder joint located
Between the glenoid fossa of the scapula and the head of the humerus
What are the two openings in the shoulder joint
One for long head of biceps brachii to pass
Anterior opening for communication subscapular bursa
What are the ligaments of the shoulder joint
Superior /middle / inferior glenohumoral
Transverse humoral ligament
Coracohumeral ligament
Inferior dislocation of the shoulder can damage what nerve
Axillary
Where is the elbow joint located
Between the trochlea and capitulum of the humerus
Trochlea notch of ulna and head of radius
What two ligaments are important for the elbow joint
Radial collateral ligament
Ulnar collateral ligament
Where is the proximal radioulnar joint located
Between the head of the radius + annular ligament
And Radial notch of ulna
What type of joint is the proximal radioulnar joint
Pivot joint
Allows pronation and supination
What ligament forms a collar around the head of the radius
Annular ligament
What dislocation of the arm is common in preschool age children
Dislocation of the proximal radioulnar joint by tearing the annular ligament
What is the middle radioulnar joint
Where the radius and ulna are linked by a tough fibrous connective sheet
Where is the distal radioulnar joint
Between the head of the ulna and ulnar notch on the distal end of the radius
What kind of joint is the wrist joint
Ellipsoidal joint
Where is the wrist joint
Between radius above and scaphoid and lunate bones below
What are the ligaments of the wrist joint
Dorsal /palmar radiocarpal
Radial / ulnar collateral ligaments
What is a Colles fracture
When the distal fragment of the broken radial fracture is displaced posteriorly
What is a smiths fracture
When the distal fragment of the radial fracture is displaced anteriorly
What kind of joint is at the thumb
Saddle joint
What are the three ligaments associated with the metacarpophalangeal joint
Palmar ligaments
Deep transverse metacarpal ligaments
Collateral ligaments
What movements do interphalangeal joints allow
Flexion /extension
