| cell line, transformed | Eukaryotic cell line obtained in a quiescent or stationary phase which undergoes conversion to a state of unregulated growth in culture, resembling an in vitro tumour. It occurs spontaneously or through interaction with viruses, oncogenes, radiation, or drugs/chemicals. (12 Dec 1998) |
|---|---|
| median line | <anatomy> See: anterior median line, posterior median line. (05 Mar 2000) |
| pectinate line | The line between the simple columnar epithelium of the rectum and the stratified epithelium of the anal canal. Synonym: linea anocutanea, anocutaneous line, dentate line. (05 Mar 2000) |
| pectineal line | A ridge running down the posterior surface of the shaft of the femur from the lesser trochanter to which the pectineus muscle attaches; continuous superiorly with intertrochanteric line and inferiorly with the medial lip of the linea aspera. Synonym: linea pectinea. (05 Mar 2000) |
| pectineal line of pubis | The continuation on the superior ramus pubis of the linea terminalis, forming a sharp ridge. Synonym: pecten ossis pubis, pectineal line of pubis. (05 Mar 2000) |
| cement line | The refractile boundary of an osteon or interstitial lamellar system in compact bone. (05 Mar 2000) |
| gluteal line | One of three rough curved lines on the outer surface of the ala of the ilium: anterior (or middle) gluteal line, inferior gluteal line, and posterior gluteal line; the two areas bounded by these give attachment to the gluteus minimus muscle below and gluteus medius above. Synonym: linea glutea. (05 Mar 2000) |
| central line | <equipment> Small, flexible plastic tube inserted into the large vein above the heart, through which drugs and blood products can be given and blood samples withdrawn painlessly. Synonym: central line, Hickman catheter. (12 Jan 1998) |
| central venous line | <equipment> Small, flexible plastic tube inserted into the large vein above the heart, through which drugs and blood products can be given and blood samples withdrawn painlessly. Synonym: central line, Hickman catheter. (12 Jan 1998) |
| retentive fulcrum line | <dentistry> An imaginary line connecting the retentive points of clasp arms on retaining teeth adjacent to mucosa-borne denture bases, an imaginary line connecting the retentive points of clasp arms, around which line the denture tends to rotate when subjected to forces such as the pull of sticky foods. (05 Mar 2000) |
| cervical line | A continuous anatomical irregular curved line marking the cervical end of the crown of a tooth and the cementoenamel junction. (05 Mar 2000) |
| chamberlain's line | <radiology> Line from posterior hard palate to posterior lip of foramen magnum, if dens greater than 3mm above line most likely to be basilar invagination see also: McGregor's line (easier to use) (12 Dec 1998) |
| Chaussier's line | The anteroposterior line of the corpus callosum as appearing on median section of the brain. (05 Mar 2000) |
| mercurial line | A bluish brown pigmentation seen at the gingival margin and associated with mercury poisoning (mercurial stomatitis). (05 Mar 2000) |
| Granger's line | On lateral skull radiographs, the line produced by the groove of the optic chiasm or sulcus prechiasmatis. (05 Mar 2000) |