Muscles
Name two muscles which adduct and medially rotate the arm?
Teres major and latissimus dorsi
The brachial artery passes medially / laterally to the biceps tendon
Medially
Which nerve is compressed in carpal tunnel syndrome?
Which carpal bone is most commonly fractured and has retrograde blood supply?
Scaphoid
Tennis elbow presents with pain at the ________ epicondyle of the elbow
Lateral
What is the action of infraspinatus?
Lateral rotation of the arm
Which artery is a high risk of causing avascular necrosis of the humeral head with a surgical neck fracture?
Posterior humeral circumflex artery
Which nerve innervates the thenar muscles and lateral two lumbricals?
Median
What part of the humerus does the ulna articulate with?
Trochlea
What would a "painful arc" most likely indicate?
Supraspinatus tendinopathy
Which muscle of the forearm initiates pronation and lies between the radius and ulna?
Pronator quadratus
At which bony landmark is the subclavian artery renamed the axillary artery?
Lateral border of 1st rib
A 20-year-old male has been stabbed in the axilla. He has altered sensation over his lateral forearm. Which nerve of the brachial plexus is most likely to have been damaged?
Musculocutaneous
Name the bones of the axillary inlet
First rib, scapula, clavicle
A patient suffers a fall and reports numbness over the upper lateral shoulder. Where is the specific region of the humerus where the fracture is most likely to be?
Surgical neck of the humerus
Describe the innervation of subscapularis
Upper and lower subscapular nerves
Which artery runs in the radial groove of the humerus?
Profunda brachii
Which peripheral branch of the brachial plexus is derived solely from the medial cord?
Ulnar
What component of the ulna articulates with the head of the radius to form the proximal radioulnar joint?
Radial notch
A skier fell while holding skiing poles, forcing the thumb back and away. She now has pain and laxity at the MCP joint. What structure at the MCP joint is most likely to be damaged?
Ulnar collateral ligament
What is the action of the lumbricals on the interphalangeal joints?
Extension
Name the six branches of the axillary artery
Superior thoracic, thoracoacromial trunk, lateral thoracic, subscapular, anterior circumflex humeral and posterior circumflex humeral arteries
What nerve is most at risk during removal of the axillary lymph nodes?
Long thoracic
Name the ligaments
From L -> R: Conoid, trapezoid, AC
A patient with long-standing rheumatoid arthritis presents with signs of Boutonnière deformity. How would this be described anatomically (i.e. flexion of...)
Flexion at the PIP, hyperextension at the DIP