Ligaments of Upper Extremity Flashcards
Coracoclavicular - Function
stabilizes acromioclavicular joint limiting medial displacement, protraction & elevation
Coracoclavicular - Attachments
- Trapezoid
attachments- from coracoid process to trapezoid line of clavicle - Conoid
attachments- from coracoid process to conoid tubercle of clavicle
Acromioclavicular - Function
stabilizes acromioclavicular joint
Acromioclavicular - Attachments
from superior aspect of acromial end of the clavicle to adjacent acromion
Coracoacromial - Function
prevents the superior displacement of the humeral head by forming the coracoacromial arch
Coracoacromial - Attachments
from lateral border of coracoid process to acromion adjacent to clavicular articulation
Coracohumeral - Function
reinforces superoanterior aspects of joint capsule
Coracohumeral - Attachments
from base of coracoid process to anterior aspect greater tubercle
Costoclavicular - Function
stabilizes sternoclavicular joint, limiting elevation of the clavicle
Costoclavicular - Attachments
from superior aspect of cartilage of first rib to undersurface of the clavicle
Superior transverse scapular - Function
closes off the suprascapular notch
Superior transverse scapular - Attachments
from the base of the coracoid process to the medial edge of the scapular notch
Glenoid capsule - Attachments
from the circumference of glenoid cavity to anatomical neck of the humerus
Glenohumeral (three ligg.; superior, middle, inferior) - Function
stabilizes glenohumeral articulation
Glenohumeral (three ligg.; superior, middle, inferior) - Attachments
from upper part of medial margin of glenoid cavity to lesser tubercle & anatomical neck
Ulnar collateral - Function
resists excessive cubital valgus
Ulnar collateral - Attachments
from medial epicondyle to medial margin of coronoid process & olecranon process
Radial collateral - Function
resists excessive cubital varus
Radial collateral - Attachments
from lateral epicondyle to anular ligament
Annular - Function
stabilizes proximal radioulnar joint
Annular - Attachments
from the anterior margin of the radial notch to posterior margin of radial notch surrounding head of radius
Interosseous membrane - Attachments
from interosseous border of radius to interosseous border of ulna
Transverse carpal - Function
prevents bowstringing of the tendons of the flexor pollicis longus, flexor digitorum superficialis & flexor digitorum profundus muscles
Transverse carpal - Attachments
from the pisiform & hook of the hamate to scaphoid & trapezium
Collateral ligaments of the metacarpophalangeal joints - Function
stabilizes metacarpophalangeal joints
Collateral ligaments of the metacarpophalangeal joints - Attachments
from the head of the metacarpals to base of adjacent proximal phalanx
