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ANATOMY / REFERENCE GALLERY1 / 4 references
upper nerves: original labelled anatomical illustration.
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ulnar nerve

Ulnar nerve leaves the anterior arm neurovascular axis toward the medial elbow.

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upper nerves: original labelled anatomical illustration.

Image: Henry Vandyke Carter / Gray’s Anatomy (1918) · Source / original · Public domain

Numbered markers and focused views are Mediveerse learning overlays; the original reference is linked above.

Ulnar nerve

Nerves & vessels

Ulnar nerve

STRUCTURE & FUNCTION

Understand what you see.

Supplies most intrinsic hand muscles and sensation over the medial hand.

Zoom into the original labels. Practise pointing out each structure, then explain it aloud. Diagrams are teaching references; specimen appearance and slide staining vary.

01 / IDENTIFICATION

How to recognise it.

  1. Medial cord terminal branch
  2. Passes behind medial epicondyle
  3. Enters hand superficial to flexor retinaculum through Guyon canal
02 / KEY STRUCTURES

Point them out.

Tap a number to open its reference, zoom in and locate the structure. Numbers stay the same across views. This key follows landmarks visible in the reference images.

Related features & study points (3)

Additional relations, attachments or microscopic details to revise alongside this plate. These are separate from its numbered image landmarks.

  • Flexor carpi ulnaris supply
  • Deep hand branch
  • Superficial sensory branch
03 / VIVA PRACTICE

Think first. Then reveal.

Say your answer aloud before opening the suggested response.

01How do you identify ulnar nerve?
SUGGESTED ANSWER

Medial cord terminal branch. Passes behind medial epicondyle. Enters hand superficial to flexor retinaculum through Guyon canal.

02Which lumbricals does it supply?
SUGGESTED ANSWER

Usually the third and fourth through its deep branch.

03Is it inside the carpal tunnel?
SUGGESTED ANSWER

No. It passes in Guyon canal, superficial to flexor retinaculum.

04What is its main functional or developmental significance?
SUGGESTED ANSWER

Supplies most intrinsic hand muscles and sensation over the medial hand. Key structures to recognise: Flexor carpi ulnaris supply; Deep hand branch; Superficial sensory branch.

Read the references.

Credited anatomical plates, microscopy and university teaching references. Individual image credits appear below the viewer. Historical plates can use older terminology; use the lesson text for current names.