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ANATOMY / REFERENCE GALLERY1 / 1 reference
This multipart figure shows the intrinsic muscles of the hand with the major muscle groups labeled.
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Dorsal interossei

Locate dorsal interossei on this anatomical reference. Read the original plate labels to confirm the view and adjacent structures.

Zoom in, then drag to inspect. Keyboard: + / − to zoom, arrows to pan, 0 to reset. Tap the numbered markers to explore parts.

This multipart figure shows the intrinsic muscles of the hand with the major muscle groups labeled.

Image: OpenStax / University of Hawaiʻi adapted teaching figures; original contributors credited at source · Source / original · CC BY 4.0 — figure credits at source

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

Interossei of hand

Hand & wrist

Interossei of hand

STRUCTURE & FUNCTION

Understand what you see.

Dorsal interossei abduct and palmar interossei adduct fingers relative to the middle-finger axis.

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. Muscles between metacarpals
  2. Dorsal and palmar groups
  3. Insert on proximal phalanges and expansions
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 (1)

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

  • Deep ulnar nerve
03 / VIVA PRACTICE

Think first. Then reveal.

Say your answer aloud before opening the suggested response.

01How do you identify interossei of hand?
SUGGESTED ANSWER

Muscles between metacarpals. Dorsal and palmar groups. Insert on proximal phalanges and expansions.

02What does DAB/PAD mean?
SUGGESTED ANSWER

Dorsal abduct, palmar adduct, using the third digit as the reference axis.

03Which nerve supplies them?
SUGGESTED ANSWER

Deep branch of ulnar nerve; intrinsic weakness may impair finger spreading and precision movements.

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

Dorsal interossei abduct and palmar interossei adduct fingers relative to the middle-finger axis. Key structures to recognise: Dorsal interossei; Palmar interossei; Deep ulnar nerve.

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.