Upper Extremity Ligaments

What ligaments make up the coracoclavicular ligament?

Trapezoid and Conoid Ligaments

Function of Coracoclavicular Ligament

Stabilizes acromioclavicular joint limiting medial displacement, protraction and elevation

Attachment of Trapezoid ligament

From: Coracoid Process
To: Trapezoid line of clavicle

Attachment of Conoid Ligament

From: Coracoid Process

To: Conoid Tubercle of Clavicle

Function of Acromioclavicular Ligament

Stabilizes acromioclavicular joint

Attachment of Acromioclavicular Ligament

From: Superior aspect of acromial end of the clavicle

To: Adjacent Acromion

Function of Coracoacromial Ligament

Prevents the superior displacement of the humeral head by forming the coracoacromial arch

Attachment of Coracoacromial Ligament

From: Lateral border of coracoid process

To: Acromion adjacent to clavicular articulation

Function of Coracohumeral ligament

Reinforces superoanterior aspects of joint capsule

Attachment of Coracohumeral Ligament

From: Base of coracoid process

To: Anterior aspect of Greater Tubercle

Function of Costoclavicular Ligament

Stabilizes sternoclavicular joint, limiting elevation of the clavicle

Attachment of Costoclavicular Ligament

From: Superior aspect of cartilage of first rib

To: Undersurface of the clavicle

Function of Superior Transverse Scapular Ligament

Closes off the suprascapular notch

Attachment of Superior Transverse Scapular Ligament

From: Base of the coracoid process

To: Medial Edge of the scapular notch

Attachment of Glenoid Capsule

From: Circumference of glenoid cavity

To: Anatomical neck of the humerus

How many glenohumeral ligaments are there?

3: Superior, Middle, Inferior

Function of Glenohumeral Ligament

Stabilizes glenohumeral articulation

Attachment of Glenohumeral ligament

From: Upper part of medial margin of glenoid cavity

To: Lesser tubercle and anatomical neck

Function of Ulnar Collateral Ligament

Resists excessive cubital valgus

Attachment of Ulnar Collateral Ligament

From: Medial Epicondyle

To: Medial margin of coronoid process and olecranon process

Function of Radial Collateral Ligament

Resists excessive cubital varus

Attachment of Radial Collateral Ligament

From: Lateral Epicondyle

To: Anular Ligament

Function of Anular Ligament

Stabilizes proximal radioulnar joint

Attachment of Anular Ligament

From: Anterior Margin of the Radial Notch

To: Posterior margin of Radial Notch surrounding head of radius

Attachment of Interosseous Membrane

From Interosseous border of Radius

To: Interosseous border of Ulna

Function of Transverse Carpal Ligament

Prevents bowstringing of the tendons of the flexor pollicis longus, flexor digitorum suferficialis, and flexor digitorum profundus muscles

Attachment of Transverse Carpal Ligament

From: Pisiform and hook of hamate

To: Scaphoid and trapezium

Function of Collateral Ligaments of the Metacarpophalangeal Joints

Stabilizes the metacarpophalangeal joints

Attachment of Metacarpophalangeal Ligaments

From: Head of the metacarpals

To: Base of adjacent proximal phalanx