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Mastitis
Mastitis Infection of the milk ducts in the breast.
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Infection
Anything that invades the body and reproduces. Infections can be bacteria, protozoa, fungi, or viruses. Bacteria and fungi are one celled creatures that cause many infections including strep throat, bladder infections, and some lung infections. Fungi cause “athlete’s foot” and thrush, an infection in the mouth. Protozoa are small organisms with many cells that can cause infections in the guts or in the lungs. Most healthy people do not get protozoal infections, but people with suppressed immune systems can. Viruses are not really organisms; they are tiny particles that can live only inside another cell. They reproduce by taking over a cell and causing that cell to make more virus particles, rather than doing what the cell is supposed to do. Viruses cause most colds and flu cases.
Breast
The breast refers to the front of the chest or, more specifically, to the mammary gland. The mammary gland is a milk producing gland. It is composed largely of fat. Within the mammary gland is a complex network of branching ducts. These ducts exit from sac-like structures called lobules, which can produce milk in females. The ducts exit the breast at the nipple.
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Mast cell
Tissue located cell probably derived from basophils. Possesses receptor for Fc of IgE. Participates in 'Immediate hypersensitivity' reactions.
Mast cells
Cells, which synthesize and store histamines, found in most body tissues, particularly just below the epithelial surfaces, serous cavities and around blood vessels. In an allergic response, an allergen stimulates the release of antibodies, which attach themselves to mast cells.
Mastectomy
Surgical removal of the entire breast. Radical mastectomy is surgical removal of the breast muscle and any number of lymph nodes; bilateral mastectomy is surgical removal of both breasts.
Master
Sadomasochistic vernacular term for the sadistic partner whose role is one of total domination and disciplinarian.
Masterton Hospital
The Masterton Hospital is a hospital in Central North Island, New Zealand.
Mastication
Process of chewing food.
Mastoid
A bony, rounded projection of the skull located behind each ear.
Mastoiditis
An infection of the mastoid bone that can cause redness, warmth, swelling and pain behind the ear, sometimes with drainage from the ear.
Masturbation
Sexuoerotic genital self-stimulation by pressure or touch, self-stimulation, usually though not necessarily climaxing in orgasm [from Latin, manus, hand + st[u]parare, to deflower, ravish, fornicate, or to engage in adultery, incest, or rape]. From its Latin derivation, the literal meaning of masturbation is to use the genitalia to ravish or rape the hand. etymologically, hand-rape, the manual practice of erotic self-stimulation, formerly stigmatized as a crime against nature. Today it is considered normal and healthy and is not limited to either the hands or the self. It includes digital stimulation of the genitalia of a partner as well as of oneself.
Masturbation fantasy
Cognitional rehearsal of erotically stimulating activity that accompanies, and may precede, an episode of masturbation. To the extent that the content of its imagery and ideation, like that of a sleeping dream, has a high degree of autonomy and individual specificity in its power to stimulate genital arousal, it is not voluntarily chosen or preferred. 2. Imagery of erotically stimulating content that accompanies, and may precede, an episode of masturbation. Like the imagery of a sleeping dream, its content has a high degree of autonomy and is not voluntarily chosen.
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Malignant tumor
A mass of cancer cells that may invade surrounding tissues or spread to distant areas of the body.
Mallory-weiss tear
A tear in the lower end of the esophagus. Caused by severe vomiting. Common in alcoholics.
Manometry
Tests that measure muscle pressure and movements in the GI tract.
Marrow
The tissue which fills the cavities of most bones; the medulla. In the larger cavities it is commonly very fatty, but in the smaller cavities it is much less fatty, and red or reddish in color.
Mast cells
Cells, which synthesize and store histamines, found in most body tissues, particularly just below the epithelial surfaces, serous cavities and around blood vessels. In an allergic response, an allergen stimulates the release of antibodies, which attach themselves to mast cells.
Mastitis
Maxillofacial
Of or relating to the upper jaw and face (particularly with reference to specialized surgery of the maxilla).
Meckel's diverticulum
A birth defect in which a small sac forms in the ileum.
Medicaid
Federally and state-funded health care program for low-income individuals.
Medicare
Federally funded health care program for individuals over age 65.
Megacolon
A huge, swollen colon. Results from severe constipation. In children, megacolon is more common in boys than girls. See also Hirschsprung's Disease.
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