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Peptic ulcer
A peptic ulcer is an ulcer of one of those areas of the gastrointestinal tract that are usually acidic. A more general term, peptic ulcer disease (PUD), is also in use. Most ulcers are associated ... > more -
Spina bifida
Spina bifida describes birth defects caused by an incomplete closure of one or more vertebral arches of the spine, resulting in malformations of the spinal ... > more -
Unsaturated fat
An unsaturated fat is a fat or fatty acid in which there is one or more double bond in the fatty acid chain. A fat molecule is monounsaturated if it contains one double bond, and polyunsaturated if ... > more -
Sickle-cell disease
Sickle cell disease is a general term for a group of genetic disorders caused by sickle hemoglobin (Hgb S). In many forms of the disease, the red blood cells change shape upon deoxygenation because ... > more -
Oral contraceptive
Oral contraceptives are chemicals taken by mouth to inhibit normal fertility. All act on the hormonal system. Female oral contraceptives, colloquially known as the Pill, are the most common form of ... > more -
Glycemic index
Glycemic index (also glycaemic index, GI) is a ranking system for carbohydrates based on their immediate effect on blood glucose levels. It compares carbohydrates gram for gram in individual foods, ... > more -
Echocardiography
The echocardiogram is an ultrasound of the heart. Using standard ultrasound techniques, two-dimensional slices of the heart can be imaged. The latest ultrasound systems now employ 3D real-time ... > more
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