Extensor digitorum brevis muscle

Extensor digitorum brevis muscle
The mucous sheaths of the tendons around the ankle. Lateral aspect. (Extensor dig. brevis labeled at upper right.)
Details
Origin	calcaneus
Insertion	toes
Nerve	peroneal nerve
Actions	extends digits 2 through 5
Antagonist	Flexor digitorum longus, Flexor digitorum brevis
Identifiers
Latin	musculus extensor digitorum brevis
TA98	A04.7.02.055
TA2	2671
FMA	51140
Anatomical terms of muscle

The extensor digitorum brevis muscle is a muscle on the upper surface of the foot that helps extend digits 2 through 5.

Structure

The extensor digitorum brevis is found on the back of the foot. It arises with the extensor hallucis brevis muscle from the calcaneus bone; many consider these two muscles are a single common muscle.

The extensor digitorum brevis divides into three tendons, which insert on the second, third, and fourth middle phalanges.

Innervation

The extensor digitorum brevis is innervated by the deep fibular nerve (deep peroneal nerve).

Action

The extensor digitorum brevis help to extend the toes to which it attaches.

See also

• Extensor digitorum longus muscle
• Extensor hallucis brevis
• Extensor digitorum muscle

Additional images

• 
  Bones of the right foot. Dorsal surface.
• 
  Muscles of the front of the leg.
• 
  Cross-section through middle of leg.

External links

• Template:MuscleLoyola
• . GPnotebook https://www.gpnotebook.co.uk/simplepage.cfm?ID=-583729075. {{cite web}}: Missing or empty |title= (help)
• Anatomy photo:16:st-0405 at the SUNY Downstate Medical Center - "The Foot: Muscles"
• Template:EMedicineDictionary
• Template:RocheLexicon
• PTCentral