What tarsal is lateral to the medial cuneiform? What tarsal is lateral to the medial cuneiform? Solution Answer: The tarsal bone lateral to the medial cuneiform is themiddle cuneiform (or the intermediate cuneiform) . There are seven tarsal bones and they are the calcaneus, talus, cuboid, navicular, and the medial, middle, and lateral cuneiforms. Among the three cuneiforms, the medial cuneiform (also known as first cuneiform) is the largest cuneiform bone. Lateral to the medial cuneiform is the middle cuneiform and its lateral surface is marked by an inverted L-shaped facet along the posterior and superior margins for the middle cuneiform bone..