Retinaculum

A retinaculum (: retinacula) is a band of thickened deep fascia around tendons that holds them in place. It is not part of any muscle. Its function is mostly to stabilize a tendon. The term retinaculum is Neo-Latin, derived from the Latin verb retinere (to retain). Specific retinacula include:


 * In the wrist:
 * Flexor retinaculum of the hand
 * Extensor retinaculum of the hand
 * In the ankle:
 * Flexor retinaculum of foot
 * Superior extensor retinaculum of foot
 * Inferior extensor retinaculum of foot
 * Superior fibular retinaculum
 * Inferior fibular retinaculum
 * In the knee:
 * Lateral retinaculum
 * Medial patellar retinaculum