The proximal sesamoid bones serve as attachment points for which ligament?

The proximal sesamoid bones serve as attachment points for which ligament?

• A. The check ligaments of the superficial digital flexor tendon
• B. The navicular ligaments
• C. The suspensory ligament
• D. The lateral collateral ligaments

Answer: (C)

The fetlock’s stay apparatus relies on a pulley-like setup where the suspensory ligament attaches to the proximal sesamoid bones. The suspensory ligament runs down the back of the cannon and attaches to these small bones, with its branches continuing to the proximal phalanx. This arrangement allows the ligament to tense as the limb bears weight, effectively supporting the fetlock and preventing overextension. The navicular ligaments relate to the navicular bone and coffin joint, the lateral collateral ligaments stabilize the joint laterally, and the check ligaments of the superficial digital flexor tendon are involved with limiting movement but do not serve as the primary attachment point to the proximal sesamoids.

The fetlock’s stay apparatus relies on a pulley-like setup where the suspensory ligament attaches to the proximal sesamoid bones. The suspensory ligament runs down the back of the cannon and attaches to these small bones, with its branches continuing to the proximal phalanx. This arrangement allows the ligament to tense as the limb bears weight, effectively supporting the fetlock and preventing overextension. The navicular ligaments relate to the navicular bone and coffin joint, the lateral collateral ligaments stabilize the joint laterally, and the check ligaments of the superficial digital flexor tendon are involved with limiting movement but do not serve as the primary attachment point to the proximal sesamoids.