Upper Extremity Joints Flashcards
What is the articulation of the Glenohumeral joint?
Head of humerus and glenoid fossa of scapula.
Describe the ACL of the elbow joint.
3 bands: Anterior, Posterior, and Oblique.
What are the ligaments of the elbow joint?
- Radial collateral ligament
- Ulnar collateral ligament
What is the articulation of the elbow joint?
Humeroulnar articulation
Trochlea and capitulum of humerus ariculate with troclear notch of ulna and radial head
What is the role of rotator cuffs?
Rotator cuff tendons stabilize glenohumeral joint
What are the ligaments of the glenohumeral joint?
- Glenohumeral ligaments
- Coracohumeral ligament
- Transverse humeral ligament
- Glenoid labrum
- Rotator cuff tendons
What is the role of the A-C ligament?
Strengthens joint superiorly
What is the role of the coracoclavicular ligament?
Anchors clavicle to coracoid process of scapula.
What makes up the coracoacromial arch?
Acromion, coracoid, and coracoacromial ligament
What are the articulations of the acromioclavicular joint?
Lateral end of clavicle and acromion
What is the role of the Glenoid labrum?
Fibrocartilage of glenoid which deepens and supports joint
(Glenohumeral joint)
What is the role of the Transverse humeral ligament?
Stabilizes long biceps tendone
(Glenohumeral joint)
What is the role of the Coracohumeral ligament?
Strengthens joint superiorly
(Glenohumeral joint)
What is the role of the Glenohumeral ligaments?
Strengthen anterior joint
(Glenohumeral joint)
What are the ligaments of the Sternoclavicular joint?
- Anterior and Posterior sternoclavicular ligaments
- Costoclavicular ligament
What are the articulations of the sternoclavicular joint?
Sternal end of the clavicle with the manubrium and first costal cartilage.
What are the ligaments of the Acromioclavicular joint?
- A-C ligament
- Coracoclavicular ligament
- Coracoacromial arch (acromion, coracoid, and coracoacromial ligament)
Describe the ligaments of the carpometacarpal and intermetacarpal joints.
United via anterior, posterior, and interosseus ligaments.
Describe the ligaments of the intercarpal joints.
Connected by anterior, posterior, and interosseus ligaments.
What are the ligaments of the wrist?
- Anterior and posterior ligaments (Strengthens capsule)
- Ulnar collateral ligament (Styloid process to triquetrum)
- Radial collateral ligament (Styloid process of radius to scaphoid)
Describe the articulation of the wrist.
Distal radius articulates with scaphoid, lunate, and triquetral bone via articular disc.
Describe the ligaments of the Distal radioulnar joint.
Anterior and posterior ligaments support the joint capsule.
Describe the articulation of the Distal radioulnar joint.
Head of ulna articulates with ulnar notch of radius.
Describe the movement within the proximal radioulnar joint.
Head of radius rotates within annular ligament during pronation and supination.
Name the ligament of the proximal radioulnar joint and describe it.
**Annular ligament **surrounds head of radius like a collar.
Describe the articulation of the proximal radioulnar joint.
Head of radius articulates with radial notch of ulna.
Describe the articulation of the metacarpophalangeal joints.
Heads of metacarpals articulate with proximal phalanges.
What are the ligmants of the metacarpophalangeal joints?
- Palmar ligaments (volar plates) (Prevents hyperextension
- Collateral ligaments (Provide valgus and varus support)
- Deep transverse metacarpal ligaments (Hold metacparls together)
What type of joint are the interphalangeal joints?
Hinge joint
What are the ligaments of the interphalangeal joints?
- Palmar ligaments (volar plate) (Prevents hyperextension)
- Collateral ligaments (Provide valgus and varus support to PIP and DIP joints
