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In the kidney, the macula densa is an area of closely packed specialized cells lining the wall of the distal tubule where it touches the glomerulus. Specifically, the macula densa is found in the terminal portion of the distal straight tubule (thick ascending limb of the loop of Henle), after which the distal convoluted tubule begins. [1][2][3]
14 lut 2024 · The macula densa is a collection of densely staining epithelial cells found in the distal straight tubule of the nephron as it makes contact with the arterioles at the vascular pole of its related renal corpuscle.
30 paź 2023 · It is formed by 3 types of cells; macula densa, juxtaglomerular granular (JG) cells and extraglomerular mesangial (Lacis) cells. The macula densa is located in the wall of the distal tubule, at the point where the tubule comes in contact with the glomerulus.
The macula densa is a zone of compact, heavily nucleated cells located in the convoluted tubule of the kidney, where it makes contact with the vascular end of the glomerulus; it is closely associated anatomically with the juxtaglomerular cells of the afferent arteriole (Dorland, 2011).
12 mar 2023 · The macula densa is a patch of densely-packed epithelial cell nuclei along the distal convoluted tubule, adjacent to the afferent arteriole at the vascular pole of the corpuscle from which the tubule arose. It may function as a sensor for sodium and/or chloride concentration.
Have a thorough look at the microscopic structure of the kidney and its cell types. Watch the video tutorial now.
Learning Objectives. By the end of this section, you will be able to: Distinguish the histological differences between the renal cortex and medulla. Describe the structure of the filtration membrane. Identify the major structures and subdivisions of the renal corpuscles, renal tubules, and renal capillaries.
