Figure 1
From: Anatomical evaluations of the adipose tissue surrounding the flexor hallucis longus tendon

Coordinate axis settings. X-axis: Straight line to the Y-axis through the maximum bulge of the lateral malleolus. Y-axis: Straight line through the center of the talus and center of the Achilles tendon. Red circle: each center point; yellow circle: origin. FHL-T, flexor hallucis longus tendon; A-T, Achilles tendon; P-T, peroneal tendon; TP-T, tibialis posterior tendon; T, talus, MM, medial malleolus; LM, lateral malleolus; Pos, posterior; Ant, anterior; Lat, lateral, Med: medial.