Summary Upper Limb Anatomy Night Before EXAM REVISION

UPPER LIMB NIGHT BEFORE
Bones & Joints
Clavicle → midshaft fracture → Radial nerve

Humerus → midshaft: Radial nerve; distal: Median/Ulnar nerve

Radius/Ulna → distal fractures; Colles fracture = “dinner fork” deformity

Carpals (8) → Some Lovers Try Positions That They Can’t Handle; Scaphoid
fracture → avascular necrosis risk

Joints:

Shoulder: Ball-and-socket → flex/ext, abduction/adduction, rotation

Elbow: Hinge → flex/ext, minor pronation/supination

Wrist: Condyloid → flex/ext, radial/ulnar deviation


Muscles & Nerves
Elbow flex: Biceps brachii, Brachialis → Musculocutaneous

Elbow ext: Triceps brachii → Radial

Forearm supination: Biceps brachii → Musculocutaneous

Wrist flex: Flexor carpi radialis → Median

Wrist ext: Extensor carpi radialis → Radial

Hand intrinsics: Interossei → Ulnar

Thenar: Opponens pollicis → Median


Clinical Correlations
Wrist drop → Radial nerve

Claw hand (4th/5th) → Ulnar nerve




UPPER LIMB NIGHT BEFORE 1