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Flatfeet
Flatfeet A condition of the feet in which the arch of the instep is flattened and the entire sole touches the ground. All babies have flat feet because their arches are not yet built up (and their feet tend to be plump). This condition may persist into adulthood, or an arch may form as the child grows. Flat feet can also be acquired, as in jobs that require a great deal of walking and carrying heavy objects. People with flat feet sometimes experience clumsiness and fatigue from prolonged walking or running. Wearing shoes with built-in arch supports can help. People with weakness in the ankle as well as flat feet may find that their feet turn in or roll toward the middle, damaging shoes and causing discomfort. Shoes with both built-in arch supports and rigid counters (side supports) are helpful. Exercises may also be useful in reducing discomfort.
RELATED TERMS--------------------------------------
Condition
The term "condition" has a number of biomedical meanings including the following: 1.An unhealthy state, such as in "this is a progressive condition." 2.A state of fitness, such as "getting into condition." 3.Something that is essential to the occurrence of something else; essentially a "precondition." 4.As a verb: to cause a change in something so that a response that was previously associated with a certain stimulus becomes associated with another stimulus; to condition a person, as in behavioral conditioning.
Feet
The plural of foot, both an anatomic structure and a unit of measure. As an anatomic structure, the foot is the end of the leg on which a person normally stands and walks. The foot is a particularly complex structure made up of dozens of bones that work together with muscles and tendons to execute precise movements. The bones of the foot include the 10 metatarsal bones and the 28 phalanges (toe bones).
Arch
Describes the alignment of the upper or lower teeth.
Acquired
"Anything that is not present at birth but develops some time later. In medicine, the word ""acquired"" implies ""new"" or ""added."" An acquired condition is ""new"" in the sense that it is not genetic (inherited) and ""added"" in the sense that was not present at birth. For example, AIDS (the acquired immune deficiency syndrome) is an acquired form of immune deficiency due to the acquisition of HIV (the human immunodeficiency virus). An acquired mutation is a change in a gene that occurs in a single cell after the conception of the individual. That change is then passed along to all cells descended from that cell. Acquired mutations are involved in the development of cancer."
Fatigue
Physical or mental exhaustion. Weariness.
Ankle
A gliding joint between the distal ends of the tibia and fibula and the proximal end of the talus.
SIMILAR TERMS--------------------------------------
Flat affect
An affect type that indicates the absence of signs of affective expression.
Flat condyloma
A manifestation of the secondary stage of syphilis that takes the form of broad flat wartlike growths in moist creased areas, as around the anus and external genitalia. Also called condyloma latum.
Flat feet
A condition of the feet in which the arch of the instep is flattened and the entire sole touches the ground. All babies have flat feet because their arches are not yet built up (and their feet tend to be plump). This condition may persist into adulthood, or an arch may form as the child grows. Flat feet can also be acquired, as in jobs that require a great deal of walking and carrying heavy objects. People with flat feet sometimes experience clumsiness and fatigue from prolonged walking or running. Wearing shoes with built-in arch supports can help. People with weakness in the ankle as well as flat feet may find that their feet turn in or roll toward the middle, damaging shoes and causing discomfort. Shoes with both built-in arch supports and rigid counters (side supports) are helpful. Exercises may also be useful in reducing discomfort.
Flatfoot
A condition in which the normal arch of the foot is absent.
Flatulence
Excessive gas in the stomach or intestine.
Flatulent
Pertaining to flatulence, the generation of excess gas in the intestinal tract. From the Latin flastus, meaning blowing, as a breeze or snort.
Flatus
Gas in the intestinal tract or passed through the anus. The intestinal gases are hydrogen, nitrogen, carbon dioxide, and methane, all of which are odorless. The unpleasant smell of flatus is the result of trace gases such as indole, skatole, and, most commonly, hydrogen sulfide.
PREVIOUS AND NEXT TERMS--------------------------------------
Fixative
A medium such as a solution or spray that preserves specimens of tissues or cells. Most biopsies and specimens removed at surgery are fixed in a solution such as formalin (dilute formaldehyde) before further processing takes place. Other common ingredients used in fixatives are alcohol, mercuric chloride, potassium dichromate and sodium sulfate.
Flail chest
When enough ribs are broken (usually from a crush injury) to compromise the rigidity of the chest wall. On inspiration, the chest wall moves inward instead of outward and the opposite on expiration.
FLAP
A gene that helps make a leukotriene, a signal that activates the white blood cells involved in inflammation. FLAP stands for 5-lipoxygenase-activating protein. FLAP has been implicated in a number of inflammatory responses, including asthma, arthritis, psoriasis, heart attack and stroke. FLAP was the first gene discovered to be a major risk factor for the common form of heart attack and the second major genetic factor identified in the common form of stroke. Also known, confusingly, as 5-lipoxygenase activating protein, five-lipoxygenase-activating protein, five-lipoxygenase activating protein, arachidonate 5-lipoxygenase-activating protein, arachidonate 5-lipoxygenase activating protein, and ALOX5AP.
Flat condyloma
A manifestation of the secondary stage of syphilis that takes the form of broad flat wartlike growths in moist creased areas, as around the anus and external genitalia. Also called condyloma latum.
Flat feet
A condition of the feet in which the arch of the instep is flattened and the entire sole touches the ground. All babies have flat feet because their arches are not yet built up (and their feet tend to be plump). This condition may persist into adulthood, or an arch may form as the child grows. Flat feet can also be acquired, as in jobs that require a great deal of walking and carrying heavy objects. People with flat feet sometimes experience clumsiness and fatigue from prolonged walking or running. Wearing shoes with built-in arch supports can help. People with weakness in the ankle as well as flat feet may find that their feet turn in or roll toward the middle, damaging shoes and causing discomfort. Shoes with both built-in arch supports and rigid counters (side supports) are helpful. Exercises may also be useful in reducing discomfort.
Flatfeet
Flatulent
Pertaining to flatulence, the generation of excess gas in the intestinal tract. From the Latin flastus, meaning blowing, as a breeze or snort.
Flatus
Gas in the intestinal tract or passed through the anus. The intestinal gases are hydrogen, nitrogen, carbon dioxide, and methane, all of which are odorless. The unpleasant smell of flatus is the result of trace gases such as indole, skatole, and, most commonly, hydrogen sulfide.
Flaviviridae
A family of viruses transmitted by mosquitos and ticks that cause some important diseases, including dengue, yellow fever, tick-borne encephalitis virus, and West Nile fever. The flaviviruses are positive-strand RNA viruses containing three structural proteins and a host-derived lipid bilayer.
Flavivirus
A family of viruses transmitted by mosquitos and ticks that cause some important diseases, including dengue, yellow fever, tick-borne encephalitis virus, and West Nile fever. The flaviviruses are positive-strand RNA viruses containing three structural proteins and a host-derived lipid bilayer.
Flavivirus encephalitis
Encephalitis (inflammation of the brain) due to a flavivirus, a virus transmitted by a mosquito or tick. Flavivirus encephalitis includes West Nile fever, Japanese encephalitis, St. Louis encephalitis, and Murray Valley encephalitis. These diseases typically develop after an incubation period of 5 to 15 days. The neurologic manifestations depend on which part of the nervous system is infected -- the meninges (to cause meningitis), the body of the brain (encephalitis), or the spinal cord (myelitis). The more important features include a reduced level of consciousness, which may be associated with seizures, a flaccid (floppy) paralysis resembling that of poliomyelitis, and parkinsonian movement disorders.
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