Joints Flashcards
Classify the Glenohumeral Joint
Ball and Socket Synovial Joint
Articulating surfaces of the Glenohumeral Joint
Humeral Head and
Glenoid Fossa of Scapula
What is the capsule attachment of the glenohumeral joint
Margin of glenoid cavity and
Anatomical neck of humerus
Encloses Long Head of Biceps
What does the synovial membrane of the glenohumeral joint line
Entire inside surface of joint capsule
Humerus
Glenoid Labrum
Joint cavity part of Biceps tendon
What are the ligaments associated with the glenohumeral joint
Glenohumeral ligaments (3 of them on anterior side)
Coracohumeral Ligament
Transverse humeral Ligament
Coracoacromial ligament
What muscles act on the glenohumeral joint?
Axio-appendicular muscles (Indirectly) Scapulohumeral muscles (directly) Shunt muscles (prevent dislocation)
What is the blood supply of the glenohumeral joint?
Anterior and Posterior circumflex humeral arteris
suprascapular artery
subscapular artery
What is the innervation of the glenohumeral joint?
Articular br. of Axillary N.
Articular br. of Suprascapular N.
Articular br. of Lateral pectoral N.
What are the bursae associated with the glenohumeral joint?
Subscapular bursa
Subtendinous bursa of subscsapula
Subacromial bursa (subdeltoid bursa)
What does the coracoacromial arch consist of
coracoid process
coracoacaromial ligament
acromion
What does the coracoacromial arch do
prevents upward dislocation of the humerus
What is the subacromial bursa (subdeltoid bursa) inferior to
coraco-humeral arch
coracoacromial ligament
deltoid
What are the attachments of the coracohumeral ligament
Inferior surface of coracoid process
Greater tubercle of humerus
Describe the transverse humeral ligament
covers the superior intertubulcular sulcus
Classify the elbow joint
hinge type of synocial joint
What are the articulating surfaces of the elbow joint
trochlea and trochlear notch of ulna
Capitulum and head of radius
What is the capsule attachment of the elbow joint
attaches to humerus at medial and lateral ends of articulating surfaces
Attaches to coronoid and olecranon fossae
Where does the synovial membrane run of the elbow joint
lines interior surface of capsule
Intracapsular and non-articular parts of humerus
continuous with synovial membrane of radio-ulnar joint
strengthened by collateral ligaments on each side
What are the ligaments associated with the elbow joint
Radial collateral Ligament
-Blends distally with annular ligament of radius
Ulnar collateral ligament
-From medial epicondyle of humerus to coronoid process of ulna
What muscles act on the elbow joint
chief flexors =
biceps brachii and barchialis
Chief extensors = triceps brachii
What is the blood supply of the elbow joint
derived from anastomosis of elbow joint
What is the nerve supply of the elbow joint
musculocutaneous N.
Radial N.
Ulnar N.
What are the bursae associated with the elbow joint
Intratendinous olecranon bursa
Subtendinous olecranon bursa
Subcutaneous olecranon bursa
Bicipitoradial bursa
Which ligament keeps the head of the radius in place
Annular ligament
What does the anular ligament continue as distally
Sacciform recess of radio-ulnar joint
What is Hilton’s law
Motor nerve to a muscle supplies branch to joint on which muscle has action as well as to the overlying skin
What is the classification of the sternoclavicular joint
Saddle type of synovial joint
BUT FUNCTIONS AS A BALL AND SOCKET JOINT
What are the articulating surfaces of the sternoclavicular joint
Medial clavicle
Manibrius of sternum
First costal cartilage
What is the function of the sternoclavicular joint
Shock absorer
Prevents medial clavicle displacement
What are the ligaments assiciated with the sternoclaavicular joint
Anterior and posterior sternoclavicular ligaments
Interclavicular ligament
Costoclavicular ligament
What are the movements that take place at the sternoclavicular joint
Flexion Extension Medial/lateral rotation Abduction Adduction
What is the classification of the acromioclavicular joint
Plane type of synovial joint
What are the articulating surfaces of the acromioclavicular joint
Acromion of scapula
Lateral end of clavicle
What ligaments are associated with the acromioclavicular joint
Acromioclavicular ligament
Coracoclavicular ligament
What movements take place at the acromioclavicular joint
Rotation of acromion
What is the blood supply of the acromioclavicular joint
Suprascapular A.
Thoracoacromial A.
What is the innervation of the acromioclavicular joint
suprascapular N.
Lateral Pectoral N.
Acilary N.
What is the classification of the radiocarpal joint
condyloid type of synovial joint
What are the articulating surfaces of the radiocarpal joint
distal radius
Scaphoid, Lunate, Triquetrium
Articular disk
What are the ligaments associated with the radiocarpal joint
Palmar and dorsal radiocarpal ligaments
Ulnar collateral ligament
Radial collateral ligament
What are the movements that take place at the radiocarpal joint
Flexion
Extension
Abduction
Adduction
Classify the proximal radio-ulnar joint
picot type of synovial joint
Describe the capsule of the proximal radio-ulnar joint
continuous with that of the elbow joint
Classify the distal radio-ulnar joint
Pivot type synovial joint
What are the ligaments associated with the distal radio-ulnar joint
Firbrocartilage disk (articular disk) = Triangular
Anterior lig.
Posterior Lig.
What is the movement that takes place at the distal radio-ulnar joint
Rotation of the ulnar head
What is the movement that takes place at the proximal radio-ulnar joint
rotation of radius
What is the classification of the Carpometacarpal joints and the Intermetacarpal joints
plane type of synovial joint
Thumb:
Saddle type of synovial joint
What are the ligaments associated with the carpometacarpal and intercarpal joints
Anterior and Posterior carpometacarpal ligaments
Anterior and Posterior Intermetacarpal Ligaments
Interosseous Ligaments
What is the classification of the metacarpophalangeal joint
Condyloid type of synovial joint
What are the ligaments associated with the metacarpophalangeal joints
Collateral Lig.
Palmar Lig.
Deep transverse Lig.
What is the classification of the Proximal Interphalangeal and Distal Interphalangeal joints
Hinge type of synovial joints
What are the ligaments associated with the proximal interphalangeal and distal interphalangeal joints
Palmar and dorsal interphalangeal Ligs.
Collateral Ligs.
What is the Subacromial Bursa (Subdeltoid Bursa) superior to
Joint capsule
Tendon of supraspinatus
What are the three types of joints
Fibrous joints
Catilaginous joints
Synovial joints
