Posterior colliculus
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The posterior colliculus is the posterior portion of the medial malleolus of the distal
tibia The tibia (; ), also known as the shinbone or shankbone, is the larger, stronger, and anterior (frontal) of the two bones in the leg below the knee in vertebrates (the other being the fibula, behind and to the outside of the tibia); it connects ...
which is smaller in size comparing to the anterior colliculus. It has an attachment of the posterior tibiotalar ligament which is a part of
deltoid ligament The deltoid ligament (or medial ligament of talocrural joint) is a strong, flat, triangular band, attached, above, to the apex and anterior and posterior borders of the medial malleolus. The deltoid ligament is composed of 4 fibers: 1. Anterior t ...
on the medial side of the ankle.


References

Tibia {{musculoskeletal-stub