Which ligament connects the calcaneus to the navicular bone on the plantar surface of the foot?

• A. Patellotibial Ligament
• B. Plantar Calcaneonavicular Ligament
• C. Dorsal Ulnocarpal Ligament
• D. Ischiofemoral Ligament

Answer: (B)

The main idea here is recognizing ligaments by where they connect and where they sit. The ligament that directly links the calcaneus (heel bone) to the navicular bone on the plantar surface is the plantar calcaneonavicular ligament, also known as the spring ligament. It runs from the sustentaculum tali of the calcaneus to the navicular bone and plays a key role in supporting the medial longitudinal arch of the foot during weight bearing. This connection is specific to the plantar aspect and to those two bones, which is why it’s the correct choice. The other ligaments listed belong to different joints or surfaces: one is in the knee, another in the wrist, and another in the hip.