Malleolus

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Malleolus
Gray357.png
Coronal section through right talocrural and talocalcaneal joints.
Gray1239.png
Back of left lower extremity. (Medial malleolus labeled at bottom right.)
Details
LatinMalleoli
Identifiers
Gray'sp.5
Dorlands
/Elsevier
m_02/12511187
Anatomical terms of bone
 
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This article deals with human anatomy. For other organisms, see respective articles, e.g. Solifugae, or see malleolus, malleus, or Malleus (disambiguation)
Malleolus
Gray357.png
Coronal section through right talocrural and talocalcaneal joints.
Gray1239.png
Back of left lower extremity. (Medial malleolus labeled at bottom right.)
Details
LatinMalleoli
Identifiers
Gray'sp.5
Dorlands
/Elsevier
m_02/12511187
Anatomical terms of bone

Malleolus (Latin, "small hammer") is the bony prominence on each side of the ankle.

Each leg is supported by two bones, the tibia on the inner side (medial) of the leg and the fibula on the outer side (lateral) of the leg. The medial malleolus is the prominence on the inner side of the ankle, formed by the lower end of the tibia. The lateral malleolus is the prominence on the outer side of the ankle, formed by the lower end of the fibula.

Medial malleolus[edit]

The medial surface of the lower extremity of tibia is prolonged downward to form a strong pyramidal process, flattened from without inward - the medial malleolus.

Structures that pass behind medial malleolus deep to flexor retinaculum:

Lateral malleolus[edit]

The lower extremity of the fibula, also called the distal extremity or external malleolus, is of a pyramidal form and somewhat flattened from side to side; it descends to a lower level than the medial malleolus.

Structures that pass behind the lateral malleolus:

  • Sural nerve
  • Short saphenous vein
  • Peroneus longus tendon
  • Peroneus brevis tendon

Additional images[edit]

See also[edit]

References[edit]

This article incorporates text from a public domain edition of Gray's Anatomy.

External links[edit]