Category: H
-
Hemianalgesia
Loss of sensitivity to pain on one side of the body. Numbness or lack of pain sensation on one side of the body.
-
Haustra
Pouchlike structures in the intestinal walls that expand and contract to hold varying amounts of food during digestion.
-
Hamstring muscle group
A collective mass of muscles of the upper posterior leg that flex the leg; composed of biceps femoris, semitendinosus, and semimembranosus muscles.
-
Halo traction
Use of pins inserted into the cranium and attached to a circular metal ring, forming a halo and stabilizing cervical fractures.
-
Hallux rigidus
A painful condition of the great toe where the joint cartilage deteriorates at the articular surface of the metatarsal, resulting in painful ambulation and stiffening of the joint. A form of degenerative arthritis in the bottom joint of the big toe. Hallux rigidus causes a prominent outgrowth of bone at the back edge of the…
-
Hallucis flexus
Permanent contracture of the great toe; commonly referred to as a hammertoe.
-
Hallucinatory neuralgia
Sensation of localized pain following the cessation of an episode of severe throbbing pain. An impression of local pain without an actual stimulus to cause the pain.
-
Haif-life
Time required by the body to eliminate half of the blood concentration level of the original drug dose.
-
Hypothrombinemia
Lower than normal levels of prothrombin (Factor II) in the circulating blood, leading to poor clot formation, long clotting time, and sometimes excessive bleeding. It often results from vitamin K deficiency or anticoagulant therapy.
-
Hypoproteinemia
Abnormally low level of protein in the blood, usually with abdominal pain, nausea, diarrhea, and edema. It may be caused by inadequate dietary intake of protein or by intestinal or renal disease. A decrease in the quantity of protein in the blood. It may result from malnutrition, impaired protein production (as in liver disease), or…