Upper limb

Question 1

Nerve supply by Median nerve?

Answer 1

LOAF
Lateral 2 Lumbricals
Opponens Pollicis
Abductor pollicis brevis
Flexor pollicis brevis

Question 2

Muscles supplying Radial nerve?

Answer 2

BESTS
Brachioradialis
Extensors of wrist
Supinator
Triceps
Sensation over anatomical snuffbox

Question 3

Nerve supply by Ulnar?

Answer 3

MAFIA
Medial Lumbricals
Adductor pollicis
Flexor digitorum profundus/Flexor digiti minimi
Interossei
Abductor digiti minimi

Innervates all intrinsic muscles of the hand (EXCEPT 2: thenar muscles & first two lumbricals - supplied by median nerve)

Question 4

Branches of posterior cord?

Answer 4

STAR
Subscapular nerve
Thoracodorsal
Axillary
Radial

Question 5

Borders of anatomical snuffbox?

Answer 5

Floor: trapezium and scaphoid
Content: radial artery
Posterior border: EPL tendon
Anterior border: EPB + abductor pollicis longus
Proximal border: styloid process of radius
Distal border: Apex of snuffbox triangle

Question 6

Erb’s palsy vs Klumpke’s

Answer 6

Erb’s
C5-6
Loss of sensation in the arm and paralysis and atrophy of the deltoid, biceps, and brachialis muscles.[6] “The position of the limb, under such conditions, is characteristic: the arm hangs by the side and is rotated medially; the forearm is extended and pronated. The arm cannot be raised from the side; all power of flexion of the elbow is lost, as is also supination of the forearm”.[7] The resulting biceps damage is the main cause of this classic physical position commonly called “waiter’s tip”.[citation needed]

Klumpke’s
C8-T1
Symptoms include atrophy of the arm or hand, claw hand, constant crying (due to pain),[10] intrinsic minus hand deformity,[11] paralysis of intrinsic hand muscles, and C8/T1 Dermatome distribution numbness. Involvement of T1 may result in Horner’s syndrome, with ptosis, and miosis. Weakness or lack of ability to use specific muscles of the shoulder or arm

Question 7

Branches of axillary artery?

Answer 7

Mnemonic for axillary artery branches
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Superior thoracic artery
Thoracoacromial artery
Lateral thoracic artery
Subscapular artery
Anterior humeral circumflex artery
Posterior humeral circumflex artery