What Are The Vasa Recta Quizlet?

What is the role of the vasa recta in the urinary system quizlet?

What is the function of the vasa recta.

It maintains the concentration gradient established by the loop of Henle.

The primary function of the loop of Henle is: to generate a concentration gradient between the inner medulla and outer cortex..

What role does the Vasa recta play in urine formation?

What role do the vasa recta play in urine formation? … The vasa recta protect the medullary osmotic gradient by preventing rapid removal of salt. C. The vasa recta receive the dilute filtrate from the distal convoluted tubule.

What is the purpose of the loop of Henle?

Loop of Henle, long U-shaped portion of the tubule that conducts urine within each nephron of the kidney of reptiles, birds, and mammals. The principal function of the loop of Henle is in the recovery of water and sodium chloride from urine.

What are the three major functions of the loop of Henle?

This part of the nephron is called the loop of Henle. Its main function is to reabsorb water and sodium chloride from the filtrate. This conserves water for the organism, producing highly concentrated urine.

What is the main function of the descending loop of Henle quizlet?

It helps maintain a constant amount of NaCl being delivered to the distal portions of the nephron. What is the major function of the Loop of Henle, Distal Tubule, and Collecting Duct? 1. The major function is to control the rate of water and solute excretion and match these rates to fluid and electrolyte balance.

What three hormones factors do the kidneys secrete into the blood?

The kidney secretes (1) renin, a key enzyme of the renin-angiotensin system (RAS) that leads to the production of a potent pressor hormone angiotensin, and produces the following hormones and humoral factors: (2) kallikreins, a group of serine pro- teases that act on blood proteins to produce a vasorelaxing peptide …

What is the Vasa recta and where is it found?

In the blood supply of the kidney, the vasa recta renis (or straight arteries of kidney, or straight arterioles of kidney) form a series of straight capillaries in the medulla. They lie parallel to the loop of Henle.

How are Vasa recta formed?

Terminations of the vasa recta form the straight venules, branches from the plexuses at the apices of the medullary pyramids. They run outward in a straight course between the tubes of the medullary substance and join the interlobular veins to form venous arcades….Vasa recta (kidney)Vasa rectaFMA72006Anatomical terminology8 more rows

Is Vasa recta peritubular capillaries?

Peritubular capillaries surround the cortical parts of the proximal and distal tubules, while the vasa recta go into the medulla to approach the loop of Henle. About one-fifth of the blood plasma is filtered as the blood passes through the glomerular capillaries; four-fifths continues into the peritubular capillaries.

What is the main function of the distal tubule?

The distal convoluted tubule is the nephron segment that lies immediately downstream of the macula densa. Although short in length, the distal convoluted tubule plays a critical role in sodium, potassium, and divalent cation homeostasis.

What is the difference between Vasa recta and peritubular capillaries?

The main difference between vasa recta and peritubular capillaries is that the vasa recta are the blood capillaries that surround the loop of Henle in the juxtamedullary nephrons. But, peritubular capillaries are the blood capillaries that surround the PCT and DCT of the cortical nephrons.

What is the role of the vasa recta in blood pressure regulation?

The vasa recta capillaries are long, hairpin-shaped blood vessels that run parallel to the loops of Henle. The hairpin turns slow the rate of blood flow, which helps maintain the osmotic gradient required for water reabsorption. Illustration of the vasa recta which run alongside nephrons.

What are the known functions of the distal convoluted tubule?

A distal convoluted tubule connects to the collecting duct system that fine-tunes salt and water reabsorption and plays a major role in acid–base balance. The initial segment of the collecting duct, the cortical collecting duct, takes off from the distal convoluted tubule in the cortex.

What are the Vasa recta?

The vasa recta, the capillary networks that supply blood to the medulla, are highly permeable to solute and water. … The ability of the vasa recta to maintain the medullary interstitial gradient is flow dependent. A substantial increase in vasa recta blood flow dissipates the medullary gradient.

What is the countercurrent mechanism Why is it important?

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.