Mitosis
The ordinary division of a body cell (a somatic cell) to form two daughter cells, each with the same chromosome complement as the parent cell.
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- MHC
Major histocompatability complex.
- mGy
Abbreviation for milligray.
- MG (myasthenia gravis)
There is currently no cure for myasthenia gravis, but today at least 90 percent of patients with MG survive. A number of treatments are available that help, including steroids and other immunosuppressive medications and cholinergic medications.
- mg
Abbreviation for milligram, a unit of measurement of mass in the metric system equal to a thousandth of a gram. A gram is equal to the mass of one milliliter, one thousandth of a liter, of water at 4 degrees C. MG (in capital letters) is the abbreviation for the disease myasthenia gravis.
- Mitral valve
A valve in the heart that is situated between the left atrium and the left ventricle. The mitral valve permits blood to flow from the left atrium into the left ventricle, but not in the reverse direction. The mitral valve has two flaps (cusps). It is so named because it looks like a bishop’s miter […]