| facilitated diffusion | <physiology> A process by which substances are conveyed across cell membranes faster than would be possible by diffusion alone. This is generally achieved by proteins that provide a hydrophilic environment for polar molecules throughout their passage through the plasma membrane, acting as either shuttles or pores. See: symport, antiport, uniport. (18 Nov 1997) |
|---|---|
| facilitated transport | The protein-mediated transport of a compound across a biomembrane that is not ion-driven; a saturable transport system. Synonym: passive transport. (05 Mar 2000) |
| facilitation | <physiology> Greater effectiveness of synaptic transmission by successive presynaptic impulses, usually due to increased transmitter release. (18 Nov 1997) |
| facilitator neuron | <physiology> A neuron whose firing enhances the effect of a second neuron on a third. This allows the effects of neuronal activity to be modulated. (18 Nov 1997) |
| facility design and construction | Architecture, exterior and interior design, and construction of facilities other than hospitals, e.g., dental schools, medical schools, ambulatory care clinics, and specified units of health care facilities. The concept also includes architecture, design, and construction of specialised contained, controlled, or closed research environments including those of space labs and stations. (12 Dec 1998) |
| facility regulation and control | Formal voluntary or governmental procedures and standards required of hospitals and health or other facilities to improve operating efficiency, and for the protection of the consumer. (12 Dec 1998) |
| facing | A tooth-coloured material (usually plastic or porcelain) used to hide the buccal or labial surface of a metal crown to give the outward appearance of a natural tooth. (05 Mar 2000) |
| facio- | The face. See: prosopo-. Origin: L. Facies (05 Mar 2000) |
| faciodigitogenital dysplasia | A syndrome of ocular hypertelorism, anteverted nostrils, broad upper lip, saddle-bag scrotum, and laxity of ligaments resulting in genu recurvatum, flat feet, and hyperextensible fingers; X-linked and autosomal dominant forms. Synonym: Aarskog-Scott syndrome. (05 Mar 2000) |
| faciolingual | Relating to the face and the tongue, often denoting a paralysis affecting these parts. (05 Mar 2000) |
| facioplasty | Plastic surgery involving the face. Origin: facio-+ G. Plastos, formed (05 Mar 2000) |
| facioplegia | Synonym: facial paralysis. Origin: facio-+ G. Plege, a stroke (05 Mar 2000) |
| facioscapulohumeral atrophy | A relatively benign type of muscular dystrophy commencing in childhood and slowly progressive; characterised by wasting and weakness, sometimes asymmetrical, mainly of the muscles of the face, shoulder girdle, and arms; autosomal dominant inheritance. Synonym: facioscapulohumeral atrophy, Landouzy-Dejerine dystrophy. (05 Mar 2000) |
| facioscapulohumeral muscular dystrophy | A relatively benign type of muscular dystrophy commencing in childhood and slowly progressive; characterised by wasting and weakness, sometimes asymmetrical, mainly of the muscles of the face, shoulder girdle, and arms; autosomal dominant inheritance. Synonym: facioscapulohumeral atrophy, Landouzy-Dejerine dystrophy. (05 Mar 2000) |
| FACNM | <abbreviation> Fellow of the American College of Nuclear Medicine. (05 Mar 2000) |