What structures prevent medial or lateral displacement of the talus?

Ligaments.

The anterior talofibular ligament (ATFL) is a ligament that prevents medial and anterior displacement of the talus.

The Calcaneofibular ligament prevents lateral displacement. connects the talus and calcaneus providing with stabilization in the ankle joint and subtalar joint.

This two ligaments are often associated with sprained ankles.

From our previous experiment, we examined how many drops a penny can hold - and place drops of salt water on the penny after recording 5 trials each, take the average of each solution.