Flat feet, or fallen arches, may cause a number of health problems.
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Bones of the lower limbs are connected to the trunk by the pelvis.
Scoliosis is a medical condition in which a person's spine has a lateral deviation.
This animation demonstrates the parts of the head, the torso and the limbs.
Synovial joints can be categorised by the direction of movement they allow.
Concave and convex lenses are used for the correction of short-sightedness and far-sightedness.