What is countercurrent multiplier in loop of Henle?
The loop of Henle utilizes the countercurrent multiplier system to increase the concentration of solute and ions within the interstitium of the medulla. This ultimately allows the nephron to reabsorb more water and concentrate the urine while at the same time using as little energy as possible.
Why is the loop of Henle called a countercurrent multiplier?
The structure of the loop of Henle and associated peritubular capillary create a countercurrent multiplier system (Figure 25.6. 1). The countercurrent term comes from the fact that the descending and ascending loops are next to each other and their fluid flows in opposite directions (countercurrent).
What is known as the countercurrent multiplier?
Countercurrent multiplication in the kidneys is the process of using energy to generate an osmotic gradient that enables you to reabsorb water from the tubular fluid and produce concentrated urine.
What is the role of countercurrent multiplier?
The counter-current multiplier or the countercurrent mechanism is used to concentrate urine in the kidneys by the nephrons of the human excretory system. The nephrons involved in the formation of concentrated urine extend all the way from the cortex of the kidney to the medulla and are accompanied by vasa recta.
What do you mean by counter current?
Countercurrent means flowing in opposite directions to increase contact. COLLOCATIONS: ~ flow. The most efficient way to transfer heat between two fluids is to have countercurrent flow. For mass transfer effectiveness, cocurrent flow is less attractive than countercurrent flow.
What is counter current mechanism explain with diagram?
The countercurrent mechanism helps to concentrate the filtrate which occurs in the loop of Henle and vasa recta in the medulla region of the kidney. The flow of fluids in opposite directions is maintained by their flow in the two loops- ascending and descending limbs of the loop of Henle and vasa recta.
What is the purpose of the countercurrent multiplier quizlet?
FUNCTION: To create urine with an osmolality different from serum osmolality. -To conserve water, the countercurrent mechanism generates urine with osmolality greater than plasma.
What occurs in the countercurrent multiplier process?
Basically, what occurs in the countercurrent multiplier process? A higher sodium concentration is produced in the kidney medulla tissue that osmotically draws out water, reducing it within the tubules and the urine. The filtrate is produced within the proximal convoluted tubule.
What is counter current mechanism explain?
The countercurrent mechanism is a mechanism in which the exchange of two fluids can take place from one direction to another with their concentrations. The definition of counter-current mechanism for all mammals and fishes is the same but the mechanism may vary.
How is a countercurrent multiplier different from a countercurrent exchanger?
– Unlike the other countercurrent systems, a countercurrent multiplier system expends energy in active transport. Unlike the other countercurrent systems, a countercurrent multiplier system expends energy in active transport.
What is countercurrent multiplier quizlet?
Countercurrent Multiplier System: Water is reabsorbed at the level of the descending loop primarily due to the active pumping of –+ (and the passive diffusion of Cl-) that happens in the —- tubule.
What is countercurrent multiplication quizlet?
sodium but not water. How does countercurrent multiplication occur? When the fluid from the descending limb goes around to the ascending limb, it pushes fluid before it up (which is less concentrated than the medullary space), so solute flows into the medullary space which draws more water out of the descending limb.
Where is the counter current mechanism in Henle’s loop?
Countercurrent mechanism in Henle’s loop. The nephrons involved in the formation of concentrated urine extend all the way from the cortex of the kidney to the medulla and are accompanied by vasa recta.
How is the counter current multiplier used to concentrate urine?
The counter-current multiplier or the countercurrent mechanism is used to concentrate urine in the kidneys by the nephrons of the human excretory system. The nephrons involved in the formation of concentrated urine extend all the way from the cortex of the kidney to the medulla and are accompanied by vasa recta.
Is the ascending loop of Henle impermeable to water?
The ascending loop of Henle function is impermeable to water. In this, sodium chloride is transported from a thick portion of the ascending limb without accompanying water so an osmotic gradient of approximately 200 mosm/kg is generated.
Where is the loop of Henle located in the kidneys?
Answer and Explanation: The loop of Henle is located in the medulla of the kidneys, it is the next step in the renal tubule process after the proximal tubule. How does the countercurrent multiplier system work? Countercurrent multiplication moves sodium chloride from the tubular fluid into the interstitial space deep within the kidneys.