Corpus3D

Ankle and foot

Tuberosity of the navicular

Tuberositas ossis navicularis

How to find it
On the medial border of the foot, about halfway between the medial malleolus and the head of the first metatarsal.
What you use it for
Insertion of the tibialis posterior and the top of the medial arch; the navicular drop test measures how far this point sinks on loading.
On the bone
Navicular bone
Body region
Ankle and foot