Extensor Digitorum Longus

Diagram of posterior muscles.

The extensor digitorum longus is a muscle located in the inside upper-thigh.

It is easy to work out the function of the extensor digitorum longus muscle because an extensor is a muscle that causes a movement that increases the angle between articulating bones. The actions of the extensor digitorum longus muscle include extending the toes - especially the four lateral toes as the extensor hallucis longus extends the great toe.

Origin, Insertion and Actions of the Extensor Digitorum Longus muscles:

Point(s) of Origin:
Point(s) of Insertion:
  • Phalange of the 2nd toe
  • Phalange of the 3rd toe
  • Phalange of the 4th toe
  • Phalange of the 5th toe, these phalanges being bones at the distal ends of the respective toes

The extensor digitorum longus muscle is labelled on our diagram of human anterior muscles.

More about Muscles:

The following are some popular pages in the section about the human muscular system:

There are also more pages about the words used to describe muscles (terminology), the anatomy and physiology of muscles, muscular disorders and associated topics. See also books about sports medicine.

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