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Increases in vasa recta flow wash away metabolites and cause the medulla to lose osmolarity as well. Increases in flow will disrupt the kidney's ability to form concentrated urine. [3] Overall the loop of Henle reabsorbs around 25% of filtered ions and 20% of the filtered water in a normal kidney. These ions are mostly Na +, Cl −, K +, Ca 2 ...
The epithelium in the thick segment of the descending limb consists of low simple cuboidal cells, which resemble those found in the proximal tubule. In contrast, the epithelium transitions to a simple squamous type in the thin segment, which is less metabolically active and has minimal surface specializations.
Simple squamous sensory: cornea: Stratified squamous, non-keratinized: corneal epithelium: sensory: nose: Pseudostratified columnar: olfactory epithelium: urinary: kidney - proximal convoluted tubule: Simple cuboidal, with microvilli - urinary: kidney - ascending thin limb: Simple squamous - urinary: kidney - distal convoluted tubule: Simple ...
The thin segment is a part of the renal tubule found between the proximal and distal tubules. The renal tubule and the renal corpuscle together comprise the nephron. [1] The thin segment is described as a U-shaped band, consisting of the two continuous parts: descending limb of loop of Henle; ascending limb of loop of Henle
The visceral layer, composed of modified simple squamous epithelium, is lined by podocytes, podocyte foot processes (pedicels), that wrap around glomerular capillaries. These pedicels interdigitate with pedicels of adjacent podocytes forming filtration slits. There are two poles in the renal corpuscle, a vascular pole and a tubular pole. [4]
Simple squamous epithelium falls under the physiological category of exchange epithelium due to its ability to rapidly transport molecules across the tissue layer. To facilitate this movement, some types of simple squamous epithelium may have pores between cells to allow molecules to move through it, creating a leaky epithelium.
Within the nephron of the kidney, the ascending limb of the loop of Henle is a segment of the heterogenous loop of Henle downstream of the descending limb, after the sharp bend of the loop. This part of the renal tubule is divided into a thin and thick ascending limb ; the thick portion is also known as the distal straight tubule , in contrast ...
Fig.6) Cross-sectional histologic preparation showing (b)small connecting tubules with simple columnar epithelium and (a) large connecting tubules with simple cuboidal epithelium. Each distal convoluted tubule delivers its filtrate to a system of collecting ducts , the first segment of which is the connecting tubule .