Which surface is the facet for calcaneonavicular part of bifurcate ligament?

Which surface is the facet for calcaneonavicular part of bifurcate ligament?

• A. Facet for calcaneonavicular part of bifurcate ligament
• B. Facet for plantar calcaneonavicular ligament
• C. Lateral condyle of femur
• D. Perichondrium

Answer: (A)

The surface in question is the specific articular facet on the calcaneus that receives the calcaneonavicular slip of the bifurcate (Y) ligament. The bifurcate ligament splits into two bands as it approaches the front of the foot, with one slip attaching to the navicular bone and the other to the cuboid. Each slip has its own facet on the calcaneus, and the one that corresponds to the navicular attachment is called the facet for the calcaneonavicular part of the bifurcate ligament. This distinguishes it from the plantar calcaneonavicular ligament, which has its own separate attachment area on the calcaneus, and makes unrelated structures like the lateral femoral condyle or the perichondrium irrelevant here.

The surface in question is the specific articular facet on the calcaneus that receives the calcaneonavicular slip of the bifurcate (Y) ligament. The bifurcate ligament splits into two bands as it approaches the front of the foot, with one slip attaching to the navicular bone and the other to the cuboid. Each slip has its own facet on the calcaneus, and the one that corresponds to the navicular attachment is called the facet for the calcaneonavicular part of the bifurcate ligament. This distinguishes it from the plantar calcaneonavicular ligament, which has its own separate attachment area on the calcaneus, and makes unrelated structures like the lateral femoral condyle or the perichondrium irrelevant here.