Chin
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  Chin



Chin

   Medically, the mentum. The lower portion of the face below the lower lip including the prominence of the lower jaw and the line of fusion of the two separate halves of the jawbone (mandible). This line of fusion (called the symphysis menti) encloses a triangular area at tip of the chin (termed the mental protuberance). On each side, below the second premolar tooth, is the mental foramen, an opening for the passage of blood vessels and a nerve that supply the chin.

RELATED TERMS
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Face
The anterior portion of the head that includes the skin, muscles, and structures of the forehead, eyes, nose, mouth, cheeks, and jaw.

Fusion
The union and integration of the instincts and drives so that they complement each other and help the organism to deal effectively with both internal needs and external demands.

Chin
Medically, the mentum. The lower portion of the face below the lower lip including the prominence of the lower jaw and the line of fusion of the two separate halves of the jawbone (mandible). This line of fusion (called the symphysis menti) encloses a triangular area at tip of the chin (termed the mental protuberance). On each side, below the second premolar tooth, is the mental foramen, an opening for the passage of blood vessels and a nerve that supply the chin.

Foramen
A natural opening. Although a foramen is usually through bone, it can be an opening through other types of tissue, as with the foramen ovale in the heart. The plural of foramen is foramina.

Blood
The life-maintaining fluid which is made up of plasma, red blood cells (erythrocytes), white blood cells (leukocytes), and platelets; blood circulates through the body's heart, arteries, veins, and capillaries; it carries away waste matter and carbon dioxide, and brings nourishment, electrolytes, hormones, vitamins, antibodies, heat, and oxygen to the tissues.

Nerve
Tissue that conveys sensation, temperature, position information to the brain.



SIMILAR TERMS
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PREVIOUS AND NEXT TERMS
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Childhood ataxia with CNS hypomyelinization
An inherited brain disease that occurs mainly in children and follows a chronic progressive course with additional episodes of rapid deterioration following stress from febrile infection or minor head trauma.

Childhood liver cancer
Primary cancer of the liver (cancer that starts in the liver) in children, a relatively rare malignancy in children. There are 2 main types of primary liver cancer in children -- hepatoblastoma and hepatocellular carcinoma. Hepatoblastomas usually occur before 3 years of age, whereas the incidence of hepatocellular carcinoma varies little with age between 0 and 19 years. The overall survival rate for children with hepatoblastoma is 70% but is only 25% for hepatocellular carcinoma.

Childhood translocation 11 leukemia
A new type of childhood leukemia in which a piece of chromosome 11 has been translocated (broken off and attached itself to another chromosome). Children with this type of leukemia have a particularly poor prognosis (outlook). They do not respond at all well to the standard therapies for ALL (acute lymphoblastic or lymphocytic leukemia) and often suffer from early relapse after chemotherapy.

Children of the dark
Term applied sometimes to children with xeroderma pigmentosum, a genetic disease with such extraordinary sensitivity to sunlight that ordinary sun exposure results in the development of skin cancer at a very early age. Children with xeroderma pigmentosum (XP) can only play outdoors safely after nightfall.

Children of the night
Term applied sometimes to children with xeroderma pigmentosum, a genetic disease with such extraordinary sensitivity to sunlight that ordinary sun exposure results in the development of skin cancer at a very early age. Children with xeroderma pigmentosum (XP) can only play outdoors safely after nightfall.

Chin

Chlamydia trachomatis
A bacterium that causes a disease called trachoma that results in blindness. The disease goes by a number of names such as sandy blight.

Chloroacetophenone
A riot control agent or "tear gas."

Chlorobenzylidenemalononitrile
A riot control agent or "tear gas."

Chloroform
A clear volatile liquid with a strong smell like ether, chloroform was once administered by inhalation to produce anesthesia and given as an analgesic (to relieve pain) and a remedy for cough. It is quite toxic to the kidney and the liver.

Chloropicrin
A riot control agent or "tear gas."

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