Achilles tendon: One of the longest tendons in the body, a tough sinew that attaches the calf muscle to the back of the heel bone (calcaneus). The name comes from Greek mythology: The hero Achilles was invulnerable to injury except for his heel, which proved his downfall when it was pierced by Paris’s arrow. It has also proved, literally, to be the downfall of many athletes who have experienced the sudden pain of its rupture.
Achillobursitis: Pain due to inflammation of the bursa associated with the Achilles tendon. . The Achilles tendon is one of the better known anatomic features in sports medicine due to the abrupt dramatic nature of some injuries to this tendon. It is in the back of the lower leg and connects the calf muscle (the […]
Achillodynia: Pain due to inflammation of the Achilles tendon or the bursa associated with it. The Achilles tendon is one of the better known anatomic features in sports medicine due to the abrupt dramatic nature of some injuries to this tendon. It is in the back of the lower leg and connects the calf muscle […]
Achlorhydria: A lack of hydrochloric acid in the digestive juices in the stomach.
Achondrogenesis: A genetic disorder of bone. There are a number of different types of achondrogenesis.
- Achondrogenesis type II
Achondrogenesis type II: A severe inherited disorder of bone growth characterized by a short body and limbs and a lack of bone formation in the spine and pelvis. Infants with this disorder have short arms and legs, a small chest with short ribs, and underdeveloped lungs. The skull bones may be soft, but they often […]