Category: F
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Flower essences
Totally benign, unperfumed water/alcohol extractions of certain flowers. They are believed to emanate the vital healing force or vibratory pattern of the flowers from which they derive. Not to be confused with highly odoriferous essential oils (also known. as essences) used in aromatherapy and perfumery.
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Flavanoids
Yellow pigments composed of a sugar and an aglycone derived from a chromone.
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Fishhook wound
An injury caused by a fishhook becoming embedded in soft tissue. Deeply embedded fishhooks are difficult to remove. One should push the hook through, then cut off the barb with an instrument, and pull the remainder of the fishhook out by the route of entry. Antitetanus treatment should be given as indicated. Because these injuries…
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Fact witness
A person who has knowledge of circumstances surrounding the events of the alleged incident in a complaint or petition for damages.
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Functional visual loss
A reduction in vision with no identifiable lesion of the visual pathways. It may be caused by an occult disease of the eye or of the optical centers in the brain. It may also occur in certain psychiatric disorders.
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Fixed virus
A rabies virus stabilized and modified but only partially attenuated by serial passage through rabbits.
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Fixed vertebra
The sacral and coccygeal vertebrae that fuse to form the sacrum and coccyx.
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Fourth ventricle
The cavity posterior to the pons and medulla and anterior to the cerebellum of the brain. It extends from the central canal of the upper end of the spinal cord to the aqueduct of the midbrain. Its roof is the cerebellum and the superior and inferior medullary vela. Its floor is the rhomboid fossa.
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Fifth ventricle
The cavity of the septum lucidum of the brain. It is between the two laminae of the septum lucidum.
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Foreign bodies in vagina
Objects that enter the vagina accidentally or are inserted deliberately. A great variety of foreign bodies may be present in the vagina, especially in children. Some foreign bodies in adults include vaginal tampons, pessaries, and contraceptive diaphragms. The treatment is to remove the foreign body. Antibiotic therapy is not usually necessary.