Each nephron starts blindly in the cortex at the renal corpuscle and ends with a region known as the collecting duct. (Some consider the collecting duct not to be a part of the nephron, strictly speaking, since it has ... The macula densa is part of the wall of the distal tubule where "it kisses its glomerulus good-bye" (C. C.
histo.life.illinois.edu/histo/lab/kidney/kidney.htm
still not known how these cells are able to sense the changes in tubular Na + or CI- concentration. ... part of the early distal tubule was also present. The length of the cTAL segment proximal to the macula densa region ...
www.springerlink.com/index/J587457J4225RN71.pdf
structures part of the nephron ------ glomerulusBowman's capsuleproximal convoluted tubuleproximal straight tubuledescending and ascending thin limbs of Henle's loopdistal ... Distal straight tubule also known as ------ ... macula densa ------ specialized epithelium; region of the distal tubule wedged between the two arterioles...
www.proprofs.com/flashcards/download.php?title=histolog... www.proprofs.com/flashcards/download.php?title=histology--urinary-system
-deep ; -reddish-brown inner region ; -consists of 8 to 18 cone-shaped renal pyramids ... 1. the ascending limb- the first part of the loop of Henle ; - dips into the renal medulla ... a. the columnar tubule cells in this regior are crowded together- known as the macula densa...
alamo.nmsu.edu/~vlombran/Anatomy-Urinary%20System.html
in the late TALH and macula densa region, COX-2 expression .... monitored through the inner part of the perfusion cannula (Statham. Transducer P 10 EZ), ..... COX-2 in mediating the well known influences of the macula densa on renal ...
jasn.asnjournals.org/cgi/reprint/12/5/867.pdf
To stimulate COX-2 expression in the macula densa region, ... The goal of this study was to assess the possible role of COX-2 in mediating the well known influences of the macula densa on renal vascular resistance and on renin secretion (25). We analyzed this question in an isolated perfused rat kidney system using kidneys...
jasn.asnjournals.org/cgi/content/full/12/5/867
Macula densa (MD) control of renin secretion is one of the key mechanisms in the regulation of the renin-angiotensin system. The MD cells are ... Genotyping was determined by PCR with nNOS or COX-2 gene-specific primers positioned in the targeted region and with Neor-specific primers. ... Thus, in the first part of this study,
ajprenal.physiology.org/cgi/content/full/287/1/F152
These results suggest that COX-2 in epithelial cells in the tubulovascular contact region is a critical component of macula densa control of renin secretion, presumably through release of the renin-stimulating prostaglandins ... The costs of publication of this article were defrayed in part by the payment of page charges.
ajprenal.physiology.org/cgi/content/full/277/5/F706
Renin secretion was found to decrease exponentially when macula densa NaCl concentration was increased from 26/7 mmol/L (Na/Cl) to 46/27, 66/47, and 86/67 mmol/L. Increasing Na/Cl concentrations from 86/67 to 106 ... 14. Itoh S, Carretero OA. Role of macula densa in renin release. Hypertension. 1985;7(part II):II-49-II-54.
hyper.ahajournals.org/cgi/content/full/26/1/137
The arteriolar cells in this region are known in a variety of species to ... macula densa second convoluted tubule. TEXT-FIG. 3. Part of a section of the ...
jcs.biologists.org/cgi/reprint/s3-88/1/39.pdf