(n.) The part of the mesoblast which gives rise to the connective tissues and blood.
Example Sentences:
(1) Ac-MPS of the hyaluronic acid type prevail in the ground substance of the myxoid and fibroblastic mesenchyma, while the substances containing sulfuric groups predominate in the tissue matrix exhibiting fibrogenic tendencies.
(2) At late cap stage and at early bell stage receptors are not present at inner enamel epithelium level but they can be detectable in the mesenchyma of dental papilla and in some cells of the follicle.
(3) Pulmonary blastoma arises from primitive lung mesenchyma and histologically resembles fetal lung.
(4) Remnants of embryonic mesenchyma in the human middle ear are visible until the end of the first year of life.
(5) Today the cause of LPD is seen in a specific hormonal stimulation of the pluripotent subperitoneal mesenchyma of the müllerian duct in the minor pelvis.
(6) The process begins in the paravasal mesenchyma which is gradually disguised by hemopoietic cells (in chicken embryos--at the stage of 8 days, in crocodiles--23 days of incubation).
(7) In 9,5-day embryos the primary sex cells are localized in the mesenchyma of the allantois and in the intestinal entoderm.
(8) The development of liver parenchyma starts from entodermal cells which grow out from the gut into the mesenchyma of the septum transversum.
(9) In the two cases reported, the epithelial component consisted of a well differentiated squamous cell carcinoma and the mesenchyma of a malignant fibrous histiocytoma.
(10) The origin of intraventricular arachnoid cysts seems to be secondary to the displacement of arachnoid cells by the vascular mesenchyma, through the choroid fissure, during the process of choroid plexus development.
(11) It is oval when sectioned transversally and is the result of the proliferation of epiblastic cells into the underlying mesenchyma during the 11th-12th week.
(12) The level of chemical differentiation of the mesenchyma, changes according to the maturity of cellular factor in connective tissue.
(13) In the subchondral area, the difference between the columnar mesenchyma and haematogenous narrow was outstanding.
(14) Linear differences were discovered in the quantitative ratio and proliferative activity of the cells of the epithelium and mesenchyma of organ cultures of the normal embryonal pulmonary tissue of mice resistant (C57BL) and predisposed (A) to lung blastomogenesis.
(15) The latter shows in the early prenatal morphogenesis of the trunk wall an intensive course and in the time aspect leaves behind the terms of differentiation of myocytes from mesenchyma cells.
(16) The myometrium with the common connective tissue derive from primary mesenchyma.
(17) Vogel combines Fromme's mesenchymal theories with the anthroposophical ideas on carcinoma development in that he designates the mesenchyma as the organic vehicle of the 'ethereal body' (Atherleib).
(18) Compared to adult rat, hyaluronectin-immunoreactive material was more abundant in embryonal rat brain and mesenchyma.
(19) The findings thus suggest that the spindle tumor cells are undifferentiated in nature and derived from mesenchyma, the osseous component being interpreted as evidence of a specific differentiation.
(20) In the embryo and after separation of the tracheal diverticulum, the esophagus is lined with ciliated cells which are able cover a "cystic duplication", which is surrounded by an esophageal muscular coat or can be "included" in a common mesenchyma, which explains the possible presence of bronchial elements in the wall of an esophageal cyst.
Parenchyma
Definition:
(n.) The soft celluar substance of the tissues of plants and animals, like the pulp of leaves, to soft tissue of glands, and the like.
Example Sentences:
(1) While stereology is the principal technique, particularly in its application to the parenchyma, other compartments such as the airways and vasculature demand modifications or different methods altogether.
(2) Vascular surgical procedures sparing renal parenchyma are relatively new, as the most common treatment for this condition had been nephrectomy.
(3) Surrounding parenchyma may be partially compressed.
(4) Injection of T-dependent antigens into the subarachnoid space and brain parenchyma induced a marked antibody production in the spleen, as detected by plaque-forming cells (PFC).
(5) In chronic active hepatitis and liver cirrhosis, both carbohydrate antigen 19-9 positive biliary ductular cells and factor VIII-related antigen positive endothelial cells were not only observed in the enlarged portal area but also extended into the parenchyma.
(6) A pathogenetic mechanism is postulated to explain the subacute evolution of fluid collection with diffusion of proteolytic enzymes between the splenic capsule and parenchyma.
(7) The decortication is aimed at removing the chronic pleural sack and the possible parenchymatous lesions and at the recovery of the maximum functional pulmonary parenchyma.
(8) Our experience in 6 cases show the helpful use of intraoperative ultrasonography in the judgement of normal parenchyma.
(9) A wide window setting permits both pleura and lung parenchyma to be examined simultaneously.
(10) After birth, laminin mRNA was associated with intrahepatic bile channels; no laminin mRNA was detected in the parenchyma and protein deposition was restricted to blood sinus BM.
(11) Histopathological evaluations showed that sulfuric acid particles alone did not cause inflammatory responses in centriacinar units of rat lung parenchyma (expressed in terms of percent lesion area) but did cause significant damage (cell killing followed by a wave of cell replication) in nasal respiratory epithelium, as measured by uptake of tritiated thymidine in the DNA of replicating cells.
(12) Of the 20 expanding tumors, only six had direct spread in the liver parenchyma adjacent to the tumor (p less than 0.02).
(13) Relatively weaker GUS activity was also detected in pith parenchyma.
(14) Light and electron microscopic analysis showed a high concentration of this enzyme in stellate cells, particularly heavily distributed under the organ capsule and scattered in the parenchyma, where they form a widespread three-dimensional network.
(15) We observed that the distribution of three isoforms of smooth muscle myosin heavy chains is different in airways compared to pulmonary arteries, and in central airways and arteries compared to lung parenchyma.
(16) The electron-microscopic study has shown that ultrastructure of tumours and their growth rate depend on a degree of the parenchyma cell differentiation and on the maturity of connective tissue being the result of their specific interaction.
(17) Observations up to 16 weeks revealed diffuse involvement of the lung parenchyma with extensive collagenization.
(18) As shown earlier, at zero turgor pressure the intracellular freezing point of the parenchyma cells matches closely the negative pressure in the xylem sap.
(19) Studies in severe combined immunodeficient mice that were engrafted with selected lymphocyte subpopulations show that B cells, and hence anti-Cryptococcus antibodies, are not necessary for the CD4+ T cell-dependent responses that isolate and subsequently destroy this opportunistic pathogen in the lung parenchyma.
(20) Although approximately 29% of the inoculum was recovered from the hepatic parenchyma of the sheep, F. hepatica was found in only one of six inoculated deer.