Innervation

Explore the curriculum

• Brachial plexus

  Organization, relations, distribution, and main consequences of brachial plexus injury.

• Median nerve

  Plexus origin, regional course, relations, collateral and terminal branches, and territories of the median nerve.

• Musculocutaneous nerve

  Origin, course, relations, and collateral and terminal branches of the musculocutaneous nerve.

• Lumbar plexus

  Formation, topography, collateral and terminal branches of the lumbar plexus, from L1 to the femoral and obturator nerves.

• Sacral plexus and sciatic nerve

  Formation and relations of the sacral plexus, distribution of its branches, sciatic-nerve course and tibial and fibular territories.

• Ulnar nerve

  Origin, regional course, terminal branches, motor and sensory territories, and the main compression sites of the ulnar nerve.

• Radial nerve

  Origin, course, branches, motor and sensory territories, and the main clinical settings of radial-nerve injury.

• Axillary nerve

  C5–C6 origin, course through the quadrangular space, motor and sensory branches, and clinical landmarks of the axillary nerve.

• Medial cutaneous nerves of the arm and forearm

  Origins, courses, branches and sensory territories of the medial cutaneous nerves of the arm and forearm, with key clinical landmarks.