| RAS | rapid atrial stimulation; recurrent aphthous stomatitis; reflex activating stimulus; reliability, av... |
|---|---|
| ref | reference; reflex |
| refl | reflex |
| RIP | radioimmunoprecipitation; reflex inhibiting pattern; respiratory inductance plethysmography |
| RR | radiation reaction; radiation response; rate ratio; rational recovery [group]; recovery room; relati... |
| fallopian canal | The bony passage in the temporal bone through which the facial nerve passes; the facial canal commences at the internal auditory meatus with the horizontal part which passes at first anteriorly (medial crus of facial canal) then turns posteriorly at the geniculum of the facial canal to pass medial to the tympanic cavity (lateral crus of facial canal); finally, it turns downward (descending part of facial canal) to reach the stylomastoid foramen. Synonym: canalis nervi facialis, aqueductus fallopii, fallopian aqueduct, fallopian canal. (05 Mar 2000) |
|---|---|
| uniting canal | A short membranous tube passing from the lower end of the saccule to the cochlear duct of the membranous labyrinth. Synonym: ductus reuniens, canaliculus reuniens, canalis reuniens, Hensen's canal, Hensen's duct, uniting canal. (05 Mar 2000) |
| femoral canal | The medial compartment of the femoral sheath. Synonym: canalis femoralis. (05 Mar 2000) |
| Ferrein's canal | A space between the closed lids and the eyeball through which the tears flow to the punctum lacrimale. Synonym: Ferrein's canal. Origin: L. Rivus, stream, + Mediev. L. Lacrimalis, fr. L. Lacrima, a tear (05 Mar 2000) |
| urogenital canal | <anatomy, urology> The tube that conveys urine from the bladder to the outside. In the female it measures 25.4 to 38.1 millimetres, in the male 25 centimetres. (27 Sep 1997) |
| uterovaginal canal | A median tubular structure produced in the embryo from the fusion of the caudal parts of the paramesonephric ducts. (05 Mar 2000) |
| Fontana's canal | sinus venosus sclerae |
| lateral canal | A channel leading from the root pulp laterally through the dentin to the periodontal tissue; may be found anywhere in the tooth root, but is more common in the apical third of the root. Synonym: lateral canal. (05 Mar 2000) |
| lateral crus of facial canal | Laterally-placed, posteriorly-directed second portion of the horizontal part of the facial canal. See: horizontal part of facial canal. Synonym: lateral crus of horizontal part of the facial canal. (05 Mar 2000) |
| lateral crus of horizontal part of the facial canal | Laterally-placed, posteriorly-directed second portion of the horizontal part of the facial canal. See: horizontal part of facial canal. Synonym: lateral crus of horizontal part of the facial canal. (05 Mar 2000) |
| Laurer's canal | A tube originating on the surface of the ootype of trematodes, directed dorsally to or near the surface; it may have originally served as a vagina or possibly as a reservoir of excess shell material. (05 Mar 2000) |
| Lauth's canal | sinus venosus sclerae |
| Lowenberg's canal | Spiral tube in the bony canal of the cochlea, lying on its outer wall between the scala vestibuli and scala tympani. (12 Dec 1998) |
| abdominocardiac reflex | Mechanical stimulation (usually distention) of abdominal viscera causing changes (usually a slowing) in the heart rate or the occurrence of extrasystoles. (05 Mar 2000) |
| Abrams' heart reflex | A contraction of the myocardium when the skin of the precordial region is irritated. (05 Mar 2000) |