Pes anserinus

Pes anserinus is the anatomic name given to the conjoined tendons at the medial aspect of the knee that insert onto the anteromedial aspect of the tibia. Its name comes from the webbed-foot appearance of the tendons insertion onto the tibia.

The three tendons that form the pes anserinus (from anterior to posterior) are:

See here for mnemonics for remembering the three conjoined tendons that make up the pes anserinus.

A bursa (known as the pes anserinus bursa) lies between the pes anserinus tendons and the more deeply located semimembranosus tendon at the level of the knee joint. This bursa can become inflamed and symptomatic: pes anserinus bursitis.

The name comes from the Latin for goose's foot, in view of the similarity of the structure to the webbed foot of the bird.

The term "pes anserinus" may also be used to describe the branching point of the facial nerve (CN-VII) within the parotid gland.   

Anatomy: Lower limb
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Article information

rID: 16865
Section: Anatomy
Synonyms or Alternate Spellings:
  • Pes anserine
  • Pes anserinus tendons

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Cases and figures

  • Figure 1: annotated image
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  • Figure 2: anatomy diagram
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