Reference is often made to a transverse arch of the foot, distinguishing it from the longitudinal arch. The cardboard model should help to make it clear that some transverse arching results from the twisted configuration of the foot. This is simply a transverse component of the arch discussed previously. This transverse component will increase and decrease along with twisting and untwisting of the foot. There is also a structural component to the transverse arching of the foot, resulting from the contours and relationships of the tarsals and metatarsals. It must be realized, however, that at the level of the metatarsal heads in the standing subject, no transverse arch exists, as each of the heads makes contact with the floor.