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Related Concept Videos

Nephrons01:10

Nephrons

The kidneys are intricate organs with millions of working units known as nephrons. Each nephron features two major structures: the renal corpuscle, which facilitates blood plasma filtration, and the renal tubule, which handles the glomerular filtrate. Blood supply is directly linked to the nephrons. The renal corpuscle consists of the glomerulus, a capillary network, and the Bowman's capsule, a double-walled epithelial structure that encases the glomerulus. The filtering of blood plasma happens...
Drug Elimination by Renal Route: Tubular Secretion01:15

Drug Elimination by Renal Route: Tubular Secretion

Once the process of glomerular filtration is completed, blood carrying unfiltered drug molecules traverses through efferent arterioles and makes its way into the peritubular capillaries in the proximal tubule. A variety of carriers play a pivotal role in actively secreting drugs from these peritubular capillaries into the tubular fluid. The organic anion transporter transfers acidic drugs, against an electrochemical gradient, from the peritubular capillaries into the renal tubule cells and...
Renal Tubule and Collecting Duct01:24

Renal Tubule and Collecting Duct

The renal tubule is divided into three parts: the proximal convoluted tubule (PCT), the Loop of Henle (LOH), and the distal convoluted tubule (DCT).
Proximal Convoluted Tubule (PCT):
The PCT is the initial segment of the renal tubule, extending from the Bowman's capsule that encloses the glomerulus. Its convoluted structure and microvilli-lined cells increase the surface area for reabsorption. The PCT reabsorbs glucose, amino acids, sodium, and water from the filtrate, ensuring essential...
Dialysis01:15

Dialysis

Dialysis is a diffusion-based purification process that separates analyte molecules from a complex matrix. This is accomplished by allowing molecules in the solution to pass through a semipermeable membrane into a liquid on the other side. The membrane is usually made of cellulose acetate or cellulose nitrate, and the second liquid must be miscible with the solution. Ions (e.g., chloride or sodium) or organic molecules (e.g., glucose) can pass through the membrane pores, which generally have...
Renal Corpuscle01:20

Renal Corpuscle

The glomerulus and Bowman's capsule are two essential components of the nephron, which is the functional unit of the kidney. These microscopic structures play a critical role in the process of blood filtration to produce urine.
Glomerulus: Structure and Function
The glomerulus is a tiny, intricate network of capillaries located at the beginning of the nephron. It's enveloped by the Bowman's capsule and receives its blood supply from an afferent arteriole, which divides into numerous capillaries...
Glomerular Filtration01:15

Glomerular Filtration

The filtration membrane in the renal system is a highly specialized structure essential for filtering blood. It consists of glomerular capillaries and podocytes, forming a selective barrier that permits the passage of water and small solutes while restricting most plasma proteins and blood cells.
Components of the Filtration Membrane
The filtration process involves three key layers: the glomerular endothelial cells, the basement membrane, and the podocyte-formed filtration slits.

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Related Experiment Video

Updated: Jul 2, 2026

Micropuncture of Bowman's Space in Mice Facilitated by 2 Photon Microscopy
07:37

Micropuncture of Bowman's Space in Mice Facilitated by 2 Photon Microscopy

Published on: October 11, 2018

Micropuncturing the nephron.

Volker Vallon1

  • 1Department of Medicine, University of California San Diego & VA San Diego Healthcare System, 92161, USA. vvallon@ucsd.edu

Pflugers Archiv : European Journal of Physiology
|August 30, 2008
PubMed
Summary
This summary is machine-generated.

Renal micropuncture allows direct study of kidney nephron function in vivo. This technique provides insights into glomerular filtration, tubular transport, and tubulo-glomerular communication, advancing understanding of kidney physiology.

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An Efficient Sieving Method to Isolate Intact Glomeruli from Adult Rat Kidney
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An Efficient Sieving Method to Isolate Intact Glomeruli from Adult Rat Kidney

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Related Experiment Videos

Last Updated: Jul 2, 2026

Micropuncture of Bowman's Space in Mice Facilitated by 2 Photon Microscopy
07:37

Micropuncture of Bowman's Space in Mice Facilitated by 2 Photon Microscopy

Published on: October 11, 2018

Using 2-Photon Microscopy to Quantify the Effects of Chronic Unilateral Ureteral Obstruction on Glomerular Processes
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Using 2-Photon Microscopy to Quantify the Effects of Chronic Unilateral Ureteral Obstruction on Glomerular Processes

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An Efficient Sieving Method to Isolate Intact Glomeruli from Adult Rat Kidney
10:14

An Efficient Sieving Method to Isolate Intact Glomeruli from Adult Rat Kidney

Published on: November 1, 2018

Area of Science:

  • Nephrology
  • Renal Physiology
  • Molecular Biology

Background:

  • The kidney maintains body homeostasis through complex renal architecture and regulated functions.
  • Understanding kidney physiology requires methods to study diverse structures within the intact kidney.
  • Systemic hemodynamics, hormones, and nerves regulate renal functions.

Purpose of the Study:

  • To review the application of renal micropuncture techniques for studying kidney physiology.
  • To elucidate single nephron functions including glomerular filtration and tubular transport.
  • To explore tubulo-glomerular communication and molecular mechanisms regulating kidney function.

Main Methods:

  • Utilizes renal micropuncture technique for in vivo studies of superficial nephrons.
  • Applies single nephron analysis to investigate physiological processes.
  • Incorporates experiments with gene-targeted mice to study molecular mechanisms.

Main Results:

  • Micropuncture techniques provide direct insights into nephron function.
  • Studies illustrate approaches to understand glomerular filtration and tubular transport.
  • Gene-targeted mouse studies advance knowledge of molecular regulation in the kidney.

Conclusions:

  • Renal micropuncture is a valuable method for understanding kidney physiology at the single nephron level.
  • This technique facilitates the study of molecular mechanisms underlying kidney function.
  • Further research using these methods can enhance our comprehension of renal homeostasis.