Osteology of the Upper Limb Flashcards
What is the Axilla more commonly known as?
Armpit
Which joint is common for rotator cuff tendonopathy?
Glenohumeral Joint
Explain in terms of the movements of your bony anatomy which structures enable forearm pronation?
Radius and Ulnar
A Posterior dislocation to sternoclavicular joint is medical emergency. True or False?
True
What type of joint is the AC joint?
Synovial Joint
What does supra mean?
Above
What does Infra mean?
Below
What muscles insert into the coracoid process?
Pec minor/coracobrachialis / short head of the biceps
What inserts into the Supraglenoid tubercle?
long head of the bicep
What runs through the suprascapula notch?
suprascapular artery and nerves
What are the most common ligaments to feature in an AC joint injury?
Conoid ligament and trapezoid ligament
Which muscle does the Subscapular fossa house?
Subscapularis
Intertubercular groove and bicipital groove are the same thing. True or False?
True
Where is a common referral pain area for rotator cuff injury?
Deltoid Tuberosity
Which epicondyle is closer to the trochlea?
Medial Epicondyle
Which epicondyle is bigger?
Medial epicondyle
Which epicondyle is closer to the capitellum?
Lateral Epicondyle
Where do flexors and extensors of the arm originate?
The epicondyles
What could a medial epicondyle issue indicate?
Golfer’s Elbow
What could a lateral epicondyle issue indicate?
Tennis Elbow
What muscle inserts into the tuberosity of ulna?
Brachialis
What is the Brachialis muscle?
Flexor of the arm
What muscle inserts into the radial tuberosity?
Biceps Brachii
What type of joint is the sternoclavicular joint?
Saddle Joint
What type of joint is the Acromioclavicular Joint?
Plane joint
What ligaments help form the sternoclavicular joint?
Anterior Sternoclavicular ligament, Posterior SC, Interclavicular & Costoclavicular
AC joint is weak and is easily injured by a direct blow. True or false?
True
What happens with a Dislocation of AC joint?
When both AC and coracoclavicular ligaments are torn, the shoulder separates (falls away) from the clavicle because of the weight of the upper limb
Where is the Glenohumeral Joint?
Attached medially to margin of glenoid cavity & laterally to anatomical neck of humerus
Encloses proximal attachment of long head of biceps brachii (supraglenoid tubercle)
Where are the bursa’s on the Glenohumeral Joint?
Subscapular bursa
Between tendon of subscapularis and neck of scapula
Communicates with cavity of shoulder joint
Extension of glenohumeral joint cavity
Subacromial bursa (Subdeltoid bursa)
Large bursa inferior to acromion, coracoacromial ligament & deltoid muscle
Facilitates movement of supraspinatus tendon under coracoacromial arch and of the deltoid over the capsule of glenohumeral joint and greater tubercle of humerus
What are the muscles of the rotator cuff?
Supraspinatus, Infraspinatus, teres minor and subscapularis.
In a dislocation of the GH joint, Due to coracoacromial arch & rotator cuff (superior stability), most dislocations of humeral head are…?
Downward
Where is the weakest part of the clavicle?
junction of its middle & lateral thirds
What is the ligament at the Proximal Radioulnar Joint?
Annular
What ligaments are at the Distal Radioulnar Joint?
Anterior and Posterior
What ligaments are in the wrist joint?
Palmar radiocarpal
Dorsal radiocarpal
Ulna Collateral
Radial Collateral
What type of joint is the wrist?
Condyloid joint
What ligaments are in the intercarpal joints?
Anterior
Posterior
Interosseous
What ligaments are in the carpometacarpal and intermetacarpal joints?
Anterior and Posterior Carpometacarpal
Anterior and Posterior Metacarpal
Posterior Interosseous
What ligaments are in the metacarpophalangeal and interphalangeal joints?
Collateral, Palmar and Transverse Metacarpal
What is superficial fascia?
composed of loose fatty highly variable connective tissue
Is a thermal regulator and provides protection for the skin from boney prominences
What is deep fascia?
Dense, organised connective tissue layer that invests deep structures such as the muscles
E.g. Medial and lateral intermuscular septa divides the arm into the anterior (flexor) and posterior (extensor) fascial compartments
Where is the Apex of the Axilla?
Between first rib, clavicle and superior edge of subscapularis
Where is the base of the Axilla?
Skin, subcutaneous tissue and axillary fascia
Where is the anterior wall of the Axilla?
Pectoralis major and minor and associated fascia
Where is the posterior wall of the Axilla?
Scapula and subscapularis, and inferiorly by teres major and latissimus dorsi
Where is the medial wall of the Axilla?
Thoracic wall (1st-4th ribs and intercostal muscles), serratus anterior
Where is the lateral wall of the Axilla?
Intertubercular groove of humerus
What are the 5 axillary lymph nodes?
pectoral (anterior)
lateral
posterior
central
apical
What is the branch from the first part of the Axillary artery?
Superior Thoracic
What are the branches from the second part of the Axillary artery?
thoracoacromial
lateral thoracic
What are the branches from the third part of the Axillary artery?
subscapular
anterior humeral circumflex
posterior humeral circumflex