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Filial
Filial 1. In genetics, the first generation that results from the crossing of two parental lines, as the filial generation. 2. In general, pertaining to the relationship of children, both sons and daughters, to their parents.
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Genetics
The scientific study of heredity. Genetics pertains to humans and all other organisms. So, for example, there is human genetics, mouse genetics, fruitfly genetics, etc.
Filial
1. In genetics, the first generation that results from the crossing of two parental lines, as the filial generation. 2. In general, pertaining to the relationship of children, both sons and daughters, to their parents.
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Filipino doctor
A doctor who, being or not a citizen of that country, has been admitted to practice medicine in the Philippines.
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Fibrous dysplasia, polyostotic
A genetic disorder of bones, skin pigmentation and hormonal problems with premature sexual development. Also called McCune-Albright syndrome or the Albright syndrome. In the syndrome, there is bone disease with fractures and deformity of the legs, arms and skull; pigment patches of the skin; and endocrine (hormonal) disease with early puberty (early menstrual bleeding, development of breasts and pubic hair) and an increased rate of growth. Polyostotic fibrous dysplasia is usually caused by mosaicism for a mutation in a gene called GNAS1 (Guanine Nucleotide binding protein, Alpha Stimulating activity polypeptide 1).
Fibulin 3
A protein that belongs to a family of extracellular proteins expressed in the basement membranes of blood vessels. The gene that encodes fibulin 3 is FBLN3 (or EFEMP1). FBLN3 is located on chromosome 2 in band 2p16. A single mutation in FBLN3 is responsible for an autosomal dominant form of macular degeneration.
Fibulin 5
A protein that belongs to a family of extracellular proteins expressed in the basement membranes of blood vessels. Fibulin 5 may be essential for the polymerization of elastin. Missense mutations in FBLN5, the gene that encodes fibulin 5, appear responsible for 1-2% of cases of age-related macular degeneration (AMD). FBLN5 is located on chromosome 14 in band 14q32.1.
Field, visual
The entire area that can be seen when the eye is directed forward, including that which is seen with peripheral vision.
Fifth cranial nerve
The fifth cranial nerve is the trigeminal nerve. The trigeminal nerve is quite complex. It functions both as the chief nerve of sensation for the face and the motor nerve controlling the muscles of mastication (chewing). Problems with the sensory part of the trigeminal nerve result in pain or loss of sensation in the face. Problems with the motor root of the trigeminal nerve result in deviation of the jaw toward the affected side and trouble chewing. The cranial nerves, the trigeminal nerve included, emerge from or enter the skull (the cranium), as opposed to the spinal nerves which emerge from the vertebral column. There are twelve cranial nerves.
Filial
Filler
An inactive substance used to make a product bigger or easier to handle. For example, fillers are often used to make pills or capsules because the amount of active drug is too small to be handled conveniently.
Film
Slang shortening of X-ray film, an X-ray, a radiograph.
Film, AP
An X-ray picture in which the beams pass from front-to-back (anteroposterior). As opposed to a PA (posteroanterior) film in which the rays pass through the body from back-to-front.
Film, lateral
An X-ray picture taken from the side.
Film, PA
An X-ray picture in which the beams pass from back-to-front (posteroanterior). As opposed to an AP (anteroposterior) film in which the rays pass through the body from front-to-back.
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