The fibular retinacula (also known as peroneal retinacula) are fibrous retaining bands that bind down the tendons of the
fibularis longus and
fibularis brevis muscles as they run across the side of the
ankle
The ankle, the talocrural region or the jumping bone (informal) is the area where the foot and the leg meet. The ankle includes three joints: the ankle joint proper or talocrural joint, the subtalar joint, and the inferior tibiofibular joint. The ...
. (''Retinaculum'' is Latin for "retainer.")
These bands consist of the superior fibular retinaculum and the inferior fibular retinaculum. The superior fibers are attached above to the
lateral malleolus and below to the lateral surface of the
calcaneus
In humans and many other primates, the calcaneus (; from the Latin ''calcaneus'' or ''calcaneum'', meaning heel; : calcanei or calcanea) or heel bone is a bone of the Tarsus (skeleton), tarsus of the foot which constitutes the heel. In some other ...
. The inferior fibers are continuous in front with those of the
inferior extensor retinaculum of the foot; behind they are attached to the lateral surface of the calcaneus; some of the fibers are fixed to the
calcaneal tubercle, forming a
septum
In biology, a septum (Latin language, Latin for ''something that encloses''; septa) is a wall, dividing a Body cavity, cavity or structure into smaller ones. A cavity or structure divided in this way may be referred to as septate.
Examples
Hum ...
between the tendons of the fibularis longus and fibularis brevis.
See also
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Fibularis longus
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Fibularis brevis
References
External links
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Lower limb anatomy
{{Portal bar, Anatomy