Is vasa recta same as 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.
What Is the peritubular capillary?
Peritubular capillaries are tiny blood vessels, in the renal system and supplied by the efferent arteriole, that travel alongside nephrons allowing reabsorption and secretion between blood and the inner lumen of the nephron.
Are vasa recta capillaries?
The vasa recta, the capillary networks that supply blood to the medulla, are highly permeable to solute and water. As with the loop of Henle, the vasa recta form a parallel set of hairpin loops within the medulla (see Chapter 2).
What branches form peritubular capillaries?
Efferent arterioles from superficial and midcortical nephrons form peritubular capillary networks that surround the proximal and DCTs located in the cortex.
What is the role of vasa recta capillaries?
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.
Where are the vasa recta 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.
What do the vasa recta capillaries do?
What are peritubular capillaries Class 11?
The Peritubular capillaries are arises from the efferent arteriole which form network of tiny blood vessels, and wrap around the proximal convoluted tubule and distal convoluted tubule which facilitate the reabsorption and secretion between blood and inner lumen of nephron and vasa rectum reaches to the medulla to …
How does the glomerulus differs from other capillaries in the body?
The glomerulus differs from other capillaries in the body in that it has a blood pressure much higher than in other capillaries. High blood pressure in the glomerular capillaries is needed to enable the formation of filtrate in the capsular space, the first process involved in the formation of urine.
What is vasa recta and its function?
Vasa recta is the minute vessel of the peritubular network which runs parallel to the loop of Henle. It maintains the concentration gradient in the medullary interstitium and helps to maintain the osmolarity of blood.
What do you mean by vasa recta?
The vasa recta of the kidney, (vasa rectae renis) are the straight arterioles, and the straight venules of the kidney, – a series of blood vessels in the blood supply of the kidney that enter the medulla as the straight arterioles, and leave the medulla to ascend to the cortex as the straight venules.
What are the functions of vasa recta and peritubular capillaries?
In brief, vasa recta and peritubular capillaries are the two types of blood capillaries that arise from efferent arterioles. Generally, they involve two of the four physiological functions of the nephron: reabsorption and secretion.
Where are the vasa recta located in the kidneys?
The vasa recta, or arteriolae rectae renis, are peritubular capillaries in the kidneys that are situated parallel to and surrounding the loop of Henle. This term is a combination of the Latin words recta, which means straight, and vasa, which pertains to blood vessels. These capillaries are important parts of the kidney anatomy that form long,
Where does the vasa recta get its oxygen?
Vasa recta are the special type of peritubular capillaries that feed medulla of the kidney with oxygen and nutrients. They specifically arise from the efferent arteriole of juxtamedullary nephrons and wind around their Henle loops.
Where are the peritubular capillaries located in the kidney?
Peritubular capillaries are the type of blood capillaries that arise from the efferent arterioles, surrounding the PCT and DCT of the cortical nephrons. Here, the loop of Henle of the cortical nephrons does not dip beyond the cortex of the kidney. Also, the majority of the nephrons of the kidney are cortical nephrons.