Anatomy Block 1

Block 1: Back and Upper Limb


  • Median Nerve vs. Ulnar Nerve: MEAT LOAF
    • Median Nerve innervates most Flexor Forearm muscles except: Flexor Carpi Ulnaris and Flexor Digitorum Profundus, which are both innervated by ulnar nerve.
    • Ulnar Nerve innervates most Hand muscles except: Lumbricals 1 &2, Opponens Pollicis, Abductor Pollicis Brevis, Flexor Pollicis Brevis (Superficial head), which are all innervated by Median Nerve.  “MEAT LOAF”
  • Hand Nerve Pathologies: DR. CUMAB
    • DR = Radial Nerve damage –> Drop Wrist
    • CU = Ulnar Nerve damage –> Claw Hand
    • MAB = Median Nerve Damage –> Ape Hand, Benediction Hand
  • Ulna vs. Radius Attachments: HURLS
    • HU = Humerus attaches to Ulna
    • RLS = Radius attaches to Lunate and Scaphoid
  • Scaphoid in Greek means “boat” — scaphoid shaped like boat.
Brachial Plexus Nerves and the Muscles they innervate!
Cutaneous Innervations of the Hand! Notice the areas of skin that Radial, Ulnar, and Median Nerve innervate!


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