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Extensor digitorum muscle: Structure, Function & Overview

The extensor digitorum muscle (also known as extensor digitorum communis) is a muscle of the posterior forearm present in humans and other animals. It extends the medial four digits of the hand. Extensor digitorum is innervated by the posterior interosseous nerve, which is a branch of the radial nerve.

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Extensor digitorum muscle topic overview

The analysis highlights Structure, Function and Overview as prominent areas in the source structure around Extensor digitorum muscle.

Related topics
17
Source areas
3
Connected nodes
20
Extracted relationships
25
Concept neighborhoods
14
Bridge connections
20

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Structure · 12 topics
Function · 4 topics
Overview · 1 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Actions
Extension of hand, wrist and fingers
Antagonist
Flexor digitorum superficialis muscle, flexor digitorum profundus muscle
Artery
Posterior interosseous artery
FMA
38500
Insertion
Extensor expansion of middle and distal phalanges of the 2nd, 3rd, 4th, and 5th fingers
Latin
musculus extensor digitorum

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Structure

Function

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How Extensor digitorum muscle connects Entity context

The extracted context around Extensor digitorum muscle shows recurring relationship patterns in the source. For example, Extensor digitorum muscle → Bones, Cross-section, Extensor, Muscles, Posterior, Tendons, The, Transverse Another extracted example is Extensor digitorum muscle → Extension, In, It, The. Use these groups to spot repeated connection types before inspecting the individual relationships.

Extensor digitorum muscle

Top relations

related to Additional images · 8
Extensor digitorum muscle → Bones, Cross-section, Extensor, Muscles, Posterior, Tendons, The, Transverse
related to Function · 4
Extensor digitorum muscle → Extension, In, It, The
related to Structure · 3
Extensor digitorum muscle → It, Opposite, The
Actions · 1
Extensor digitorum muscle → Extension of hand, wrist and fingers
Antagonist · 1
Extensor digitorum muscle → Flexor digitorum superficialis muscle, flexor digitorum profundus muscle
Artery · 1
Extensor digitorum muscle → Posterior interosseous artery
FMA · 1
Extensor digitorum muscle → 38500
Insertion · 1
Extensor digitorum muscle → Extensor expansion of middle and distal phalanges of the 2nd, 3rd, 4th, and 5th fingers
Latin · 1
Extensor digitorum muscle → musculus extensor digitorum
Nerve · 1
Extensor digitorum muscle → Posterior interosseous nerve

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

extensor digitorum posterior hand muscle tendons tendon fingers phalanges wrist forearm dorsal muscles middle distal communis extends extension also surface

Extensor digitorum muscle relationships Subject–Predicate–Object triples

TTTA extracted 25 structured relationships around Extensor digitorum muscle. Examples in this analysis include Extensor digitorum muscle → Actions → Extension of hand, wrist and fingers and Extensor digitorum muscle → Antagonist → Flexor digitorum superficialis muscle, flexor digitorum profundus muscle. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Extensor digitorum muscleActionsExtension of hand, wrist and fingers1.00infobox
Extensor digitorum muscleAntagonistFlexor digitorum superficialis muscle, flexor digitorum profundus muscle1.00infobox
Extensor digitorum muscleArteryPosterior interosseous artery1.00infobox
Extensor digitorum muscleFMA385001.00infobox
Extensor digitorum muscleInsertionExtensor expansion of middle and distal phalanges of the 2nd, 3rd, 4th, and 5th fingers1.00infobox
Extensor digitorum muscleLatinmusculus extensor digitorum1.00infobox
Extensor digitorum muscleNervePosterior interosseous nerve1.00infobox
Extensor digitorum muscleOriginLateral epicondyle (common extensor tendon)1.00infobox
Extensor digitorum muscleTA225001.00infobox
Extensor digitorum muscleTA98A04.6.02.0421.00infobox
Extensor digitorum musclerelated to Additional imagesBones0.60section
Extensor digitorum musclerelated to Additional imagesPosterior0.60section

Related concept clusters Concept neighborhoods

The concept neighborhoods around Extensor digitorum muscle bring nearby vocabulary together. In this analysis, examples include Extensor, Muscle and Tendon. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Extensor digitorum muscle
    • Extensor
    • Muscle
    • Tendon
    • Communis
    • Flexor
    • Phalanges
    • Posterior
    • Hand
    • Anatomy
    • Interosseous
    • Known
    • Nerve
  • extensor digitorum muscle
    • Muscle
    • Extensor
    • Communis
    • Anatomy
    • Phalanges
    • Flexor
    • Wrist
    • Hand
    • Interosseous
    • Muscles
    • Nerve
    • Tendon
  • common extensor tendon
    • Muscle
    • Tendon
    • Communis
    • Flexor
    • Phalanges
    • Posterior
    • Hand
    • Anatomy
    • Interosseous
    • Known
    • Nerve
    • Tendons
  • extensor indicis
    • Muscle
    • Tendon
    • Communis
    • Flexor
    • Phalanges
    • Posterior
    • Hand
    • Anatomy
    • Interosseous
    • Known
    • Nerve
    • Extension
  • extensor retinaculum
    • Muscle
    • Tendon
    • Communis
    • Flexor
    • Phalanges
    • Posterior
    • Hand
    • Anatomy
    • Interosseous
    • Known
    • Nerve
    • Extension
  • proximal and distal interphalangeal joints
    • Section
    • Extension
    • Transverse
    • Hand
    • Middle
    • Phalanges
    • Fingers
    • Epicondyle
    • Labeled
    • Lateral
    • Phalanx
    • Interossei
  • muscle
    • Anatomy
    • Flexor
    • Wrist
    • Hand
    • Muscles
    • Phalanges
    • Epicondyle
    • Labeled
    • Lateral
    • Posterior
    • Across
    • Digits
  • metacarpophalangeal joint
    • Joint
    • Metacarpophalangeal
    • Phalanx
    • Surface
    • Interossei
    • Dorsal
    • Interphalangeal
    • Phalanges
    • Second
    • Tendon
    • Tendons

Connections between topic areas Semantic bridges

For Extensor digitorum muscle, one of the stronger structural bridges in this analysis connects Extensor digitorum muscle with Structure. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Extensor digitorum muscleStructure · splits 8 ⟂ 13
Extensor digitorum muscleFunction · splits 16 ⟂ 5

Map overview Semantic statistics

Extensor digitorum muscle

Nodes21
Edges20
Triples25
Avg. degree1.9
Density0.095238
Components1

Source & methodology

TTTA analyzes the structure around Extensor digitorum muscle to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Structure, Function & Overview, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Extensor digitorum muscle · EN edition · Analysis: TopicsToTalkAbout

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