Juxtaglomerular apparatus in the domestic fowl (Gallus domesticus). 1982

J A Christensen, and I Morild, and E Mikeler, and A Bohle

The juxtaglomerular apparatus in the kidney of the domestic fowl was studied with the light and electron microscope after fixation by vascular perfusion. The height of the macula densa cells was greater and the internuclear distance less than were those of other distal tubule cells. Goormaghtigh (lacis) cells were found in the angle between the hilar arterioles and the glomerulus. The branching pattern of the basement membrane of the macula densa was extensive, surrounding both the Goormaghtigh cells and the mesangial cells. The basement membrane ended in the walls of both hilar arterioles and in the glomerular capillaries. Thus, all juxtaglomerular and glomerular structures were linked together by the branches of basement membrane. The afferent and efferent arterioles were often found ramifying in the mesangial cell mass. Granular epithelioid cells and adrenergic nerves were found within the glomerulus.

UI MeSH Term Description Entries
D007606 Juxtaglomerular Apparatus A complex of cells consisting of juxtaglomerular cells, extraglomerular mesangium lacis cells, the macula densa of the distal convoluted tubule, and granular epithelial peripolar cells. Juxtaglomerular cells are modified SMOOTH MUSCLE CELLS found in the walls of afferent glomerular arterioles and sometimes the efferent arterioles. Extraglomerular mesangium lacis cells are located in the angle between the afferent and efferent glomerular arterioles. Granular epithelial peripolar cells are located at the angle of reflection of the parietal to visceral angle of the renal corpuscle. Apparatus, Juxtaglomerular
D002645 Chickens Common name for the species Gallus gallus, the domestic fowl, in the family Phasianidae, order GALLIFORMES. It is descended from the red jungle fowl of SOUTHEAST ASIA. Gallus gallus,Gallus domesticus,Gallus gallus domesticus,Chicken
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001485 Basement Membrane A darkly stained mat-like EXTRACELLULAR MATRIX (ECM) that separates cell layers, such as EPITHELIUM from ENDOTHELIUM or a layer of CONNECTIVE TISSUE. The ECM layer that supports an overlying EPITHELIUM or ENDOTHELIUM is called basal lamina. Basement membrane (BM) can be formed by the fusion of either two adjacent basal laminae or a basal lamina with an adjacent reticular lamina of connective tissue. BM, composed mainly of TYPE IV COLLAGEN; glycoprotein LAMININ; and PROTEOGLYCAN, provides barriers as well as channels between interacting cell layers. Basal Lamina,Basement Lamina,Lamina Densa,Lamina Lucida,Lamina Reticularis,Basement Membranes,Densas, Lamina,Lamina, Basal,Lamina, Basement,Lucida, Lamina,Membrane, Basement,Membranes, Basement,Reticularis, Lamina

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