Glossary - D
Dermal ridges - ridges of the skin produced by the projecting papillae of the corium on the palm of the hand and sole of the foot, producing a fingerprint and footprint characteristic of the individual; called also dermal ridges.
Dextrality - the preferential use, in voluntary motor acts, of the right member of the major paired organs of the body, as the right eye, hand, or foot.
Diabetic Ulceration - Ulcers are breaks in the layers of the skin that fail to heal. They may be accompanied by inflammation. Sometimes they don't heal and become chronic
Didactylism - the presence of only two digits on a hand or foot.
Digital ray - a digit of the hand or foot and corresponding metacarpal or metatarsal bone, regarded as a continuous unit.
Dislocation - An injury to the ankle so that the adjoining bones are displaced and no longer touch each other. Ankle dislocations are almost always associated with sprains (damage to ligaments) and fractures.
Dorsalis pedis pulse - the pulse felt on the top of the foot, between the first and second metatarsal bones. In 8 to 10 per cent of the population this pulse cannot be detected.