(n.) Any sac or saclike cavity; especially, one of the synovial sacs, or small spaces, often lined with synovial membrane, interposed between tendons and bony prominences.
Example Sentences:
(1) The bursa of Fabricius, thymus glands and spleen of chickens were also shown to express mRNA coding for ANP.
(2) The B.2+ cells represent the second major cell population of the bursa.
(3) An operation for chronic prepatellar bursitis is described in which only the posterior wall of the bursa is excised, thus preserving, undamaged, healthy and normally sensitive skin.
(4) Bacterial cultures were also made of condemned bursas taken at processing.
(5) It's not just a word, it's an ornament [for women]," Arinç told a crowd celebrating the end of Ramadan in the city of Bursa in an address that decried "moral corruption" in Turkey.
(6) A radiological survey of 1204 members of the population of Bursa revealed a high prevalence of spina bifida occulta (16.3%).
(7) Bursas from some of these chicks were examined for infectious bursal agent-specific fluorescence four days after vaccination and bursas from others were examined for histological lesions of infectious bursal disease 21 days after vaccination.
(8) The patients all responded well to local drainage and excision of the bursa.
(9) The past history of the bursa will be remembered for its contribution to present and future research and the present and future will be promising if the experiences of the past are not forgotten.
(10) The MI response was however depressed in both age groups, and the thymus and bursa were involuted.
(11) We have previously shown that progesterone receptor (PR) is expressed in the mesothelium of the chick oviduct and ovary and in the smooth muscle cells of the oviduct and the bursa of Fabricius.
(12) The avian bursa is easily accessible experimentally, and in the chicken, it has been the subject of extensive research.
(13) Coccidial life-cytle stages were detected in the bursa of Fabricius of broiler chickens inoculated with Eimeria tenella, whether or not the chickens had previously been infected with infectious bursal disease virus (IBDV).
(14) Infectious bursal disease virus alone induced a persistent depression of Ia-expressing cells in the bursa and the spleen and no measurable change in the bone marrow lymphocyte subpopulations.
(15) The trochanteric bursa is anatomically quite susceptible to traumatic injury.
(16) Furthermore, the spleen is reached by B-determined stem cells as early as the bursa, but these stem cells seem not to proliferate in the former to any considerable extent until hatching.
(17) The proportion of rats that maintained a bursa-free ovary did not change over the 5-week period (80-89%).
(18) Essential bursal microenvironmental elements, however, are altered or lost following TP treatment, while bursae from Cy-injected birds can be reconstituted with donor precursors.
(19) (f) Fluid is not detected in subacromial-subdeltoid bursae.
(20) The lining cells were flat fibrocytes one cell thick in the smaller bursas, and round stratified cells in the larger bursas.
Sac
Definition:
(n.) See Sacs.
(n.) The privilege formerly enjoyed by the lord of a manor, of holding courts, trying causes, and imposing fines.
(n.) See 2d Sack.
(n.) A cavity, bag, or receptacle, usually containing fluid, and either closed, or opening into another cavity to the exterior; a sack.
Example Sentences:
(1) Both apertures were repaired with great caution using individual sutures without resection of the hernial sac.
(2) Tracheal mucus transport rate (TMTR) and quantitative clearance of aerosolized Escherichia coli from the trachea, lung, and air sac were measured in healthy unanesthetized turkeys and in turkeys exposed by aerosol to a La Sota vaccine strain of Newcastle disease virus (NDV).
(3) The wall of the yolk sac thickens as a result of this infolding and the densely packed capillaries.
(4) After intravenous or dorsal lymph sac injections of 3H-22:6, most of the retinal label was seen in rod photoreceptor cells.
(5) The buccal glands of adults of the Southern Hemisphere lamprey Geotria australis consist of a pair of small, bean-shaped, hollow sacs, embedded within the basilaris muscle in the region below the eyes and to either side of the piston cartilage.
(6) Ultrastructural examination of noncartilaginous regions of the tumor demonstrated mesenchymal cells with features suggestive of cartilaginous differentiation, viz, scalloped cell membranes, sac-like distension of abundant rough endoplasmic reticulum, and a matrix containing fibrillary and finely granular material.
(7) On the other hand, esophageal emptying of solid isotopic meals may show the persistence of food in the diverticular sac long time after the meal.
(8) Both genes are expressed in the fetal liver, gut, and visceral endoderm of the yolk sac and are repressed shortly after birth in the liver and gut.
(9) The in vitro absorption by rat jejunal and ileal gut sacs of soluble antigen-antibody complexes and of antigen alone was compared.
(10) In two almost identical experiments, all OTC treatment groups had significantly lower mean air sac lesion scores than the unmedicated challenged controls.
(11) After clusters of pigmented epithelial cells have rested immobile in the yolk sac of Blennius pholis for 2-4 days (Trinkaus, '88), their constituent cells transform into mesenchymal, dendritic melanocytes.
(12) The patient, a 28-year-old woman, in her ninth week of pregnancy, was operated on for stage Ia, mixed germ cell tumor (grade 3 immature teratoma + yolk sac tumor) of AFP decreased to the normal level.
(13) Using the experimental model of the everted sac prepared from rat jejuna, kinetic studies on [14C]oleic acid uptake from bile salt micelles were conducted in the presence and absence of phosphatidylcholine.
(14) Cadmium, anti-visceral yolk sac antibody (AVYS) and trypan blue all inhibited pinocytosis in a concentration-dependent fashion when added to the culture medium, although at low concentrations trypan blue was slightly stimulatory.
(15) In each rabbit, a single fetal sac was opened, the umbilical vessels were cannulated and the placenta was perfused in situ with buffered Krebs solution containing Dextran.
(16) Although small amounts of AFP are synthesized by sharks in the liver, the greatest site of synthesis is actually the stomach, with smaller amounts synthesized in the intestinal mucosa; no synthesis was observed in the shark yolk sac.
(17) A stem cell line has been obtained with cell culture, having a germ cell character and a yolk sac configuration.
(18) We postulate that the apposition of trophotaenial epithelium to the internal ovarian epithelium constitutes a placental association equivalent to a noninvasive, epithelioform of an inverted yolk sac placenta.
(19) In vivo recirculating perfusion (n = 5) and in vitro everted sac incubation (n = 8) were employed.
(20) In the second hypertrophied form [Type II], the endoplasmic reticulum is very prominent and occurs as a series of grossly dilated sacs of irregular shape.