Upper limb random anatomy Flashcards
The infraspinatus is innervated by which nerve roots?
C5 and C6
Which nerve is at risk of damage in medial epicondyle fractures?
Ulnar nerve
Which nerve supplies the deltoid muscle?
Axillary nerve (C5, C6)
Describe the position of the ulnar nerve at the elbow.
Runs posterior to the medial epicondyle
Winging of the scapula is caused by weakness of which muscles?
Serratus anterior (long thoracic nerve).
The extensor retinaculum attaches laterally to what?
Radius
The extensor retinaculum attaches medially to what?
Triquetrum and pisiform carpal bones
Lunate dislocation can damage which nerve?
Median nerve
The ulnar artery forms which palmar arch?
Superficial palmar arch
The radial artery supplies which palmar arch?
Deep palmar arch
Wartenberg’s sign is suggestive of what?
An ulnar nerve lesion
Supraspinatus is innervated by which nerve?
Suprascapular nerve
Which 2 nerves does the brachialis receive innervation from?
Musculocutaneous
Radial
What is the innervation of the subscapularis?
Subscapular nerves
What structures are contained within the anatomical snuff box?
Cephalic vein
Radial artery
Superficial branch radial nerve
All interossei of the hand are innervated by which nerve?
Deep branch of the ulnar nerve.
The empty can test is a can for which muscle?
Supraspinatus
Muscles of the hypothenar eminence are innervated by which branch of the ulnar nerve?
Deep branch of ulnar nerve.
What is the main function of the dorsal interossei?
Abduct fingers away from middle finger.
The musculocutaneous nerve is derived from which nerve roots?
C5, C6, C7
Which nerve supplies the deep flexor muscles?
Anterior interosseous nerve
The lift-off test tests which muscle?
Subscapularis.
