Insertion. - The tendon, which commences above the hock, is tied down by three transverse bands, one above the hock, another below it, and a third in front of it. It then passes in front of the canon, where it is joined by the tendons of two muscles, viz. the peroneus and the flexor metatarsi parvus. In passing over the fetlock-joint a synovial bursa intervenes between it and the capsular ligament. About the middle of the first phalanx (suffraginis) it is joined on either side by a strip from the suspensory ligament, and ultimately becomes attached to the coronal process of the os pedis, or foot-bone.