Ankle

(angf-kl) [ME., ancle]. The joint between the leg and the foot. It is a ginglymus joint, with three ligaments, the anterior, internal, and external. A-bone, the astragalus. A. Clonus, the succe ion of a number of rhythmic muscular contractions in the calf of the leg, when the foot is suddenly flexed by a pre ure upon the sole. It is a symptom of various diseases of the spinal cord, especially those involving the lateral pyramidal tracts. A. -jerk. See A. Clonus. A. -joint. See Ankle. A. Reflex. See A. Clonus. 63