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Radial nerve

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

  • 34 explained questions
  • 25 flashcards
  • 88 estimated course minutes

Updated

What you will learn

  • Locate the radial nerve origin and follow it from the axilla to the forearm.
  • Distinguish the superficial and deep branches and their anatomical relationships.
  • Map the motor and sensory territories and link injury to its functional signs.

Course outline

  1. Finding the radial nerve in the upper limb

    Build a mental map of the radial nerve before following its relationships and branches.

    8 min

  2. Origin and course through the arm

    Follow the radial nerve around the humerus and identify its relationships with muscles and the profunda brachii artery.

    15 min

  3. Terminal division in the forearm

    Identify the proximal bifurcation and assign each branch its dominant role and course.

    12 min

  4. Superficial branch and dorsal territory

    Relate the course beneath brachioradialis to distal landmarks and the radial sensory territory on the dorsum of the hand.

    17 min

  5. Deep branch, supinator and arcade of Frohse

    Visualize the deep branch crossing the supinator and continuing in the posterior interosseous plane.

    14 min

  6. Motor territories and consequences of injury

    Link radial-innervated muscles to their actions and recognize common settings of radial palsy.

    22 min

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