longitudinal arch
anatomy
Quick Summary
The longitudinal arch of the foot is formed by the tarsal and metatarsal bones. This arch is crucial for bipedal locomotion, as it helps carry and transfer weight efficiently. In humans, there are seven tarsal bones in the ankle, with the talus connecting to the lower leg bones and the calcaneus forming the heel. The arch's integrity is maintained by bone shape, ligaments, and muscles, though muscle weakness can lead to flatfoot, a condition where the arch is flattened.123
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