What are the peritubular capillaries?
In the renal system, peritubular capillaries are tiny blood vessels, supplied by the efferent arteriole, that travel alongside nephrons allowing reabsorption and secretion between blood and the inner lumen of the nephron.
What is the difference between the peritubular capillaries and the Juxtamedullary capillaries?
The key difference between vasa recta and peritubular capillaries is that vasa recta are the special type of peritubular capillaries that supply oxygen and nutrients to the medulla of the kidney while peritubular capillaries are the capillaries that arise from the efferent arteriole and feed the kidney with oxygen and …
What is the significance of the peritubular capillaries in renal physiology?
peritubular capillaries: Tiny blood vessels that travel alongside nephrons, allowing reabsorption and secretion between blood and the inner lumen of the nephron.
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 …
What is cortical nephron?
Cortical nephron is a microscopic structural and functional unit of the kidney with a short loop of Henle, which penetrates only the outer renal medulla. The Malpighian corpuscles of these nephrons are located in the outer part of the renal cortex. Cortical nephrons occur in all vertebrates.
What differences exist between cortical and Juxtamedullary nephrons?
The main difference between cortical nephron and juxtamedullary nephron is that cortical nephron contains a short loop of Henle which only extends into the outer region of the renal medulla whereas juxtamedullary nephron contains a longer loop of Henle which extends deeper into the inner medulla.
How are cortical nephrons different from Juxtamedullary nephrons?
Cortical nephrons have a glomerulus located nearer to the outer parts of the cortex and their loops of Henle are short. Juxtamedullary nephrons have a glomerulus near the junction of the cortex and medulla and their loops of Henle penetrate deep into the medulla.
What is the location of peritubular capillaries?
Throughout the length of the nephron, capillaries called peritubular capillaries lie adjacent to all segments of the tubule. They originate from the efferent arteriole and are important for solute transport throughout the tubule.
What type of capillaries are the glomerular capillaries?
What type of capillaries are the glomerular capillaries? Fenestrated capillaries. Their function is to filter large amounts of plasma into the glomerular capsule.
What are peritubular capillaries?
In the renal system, peritubular capillaries are tiny blood vessels, supplied by the efferent arteriole, that travel alongside nephrons allowing reabsorption and secretion between blood and the inner lumen of the nephron.
Where does blood go after passing through the 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 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.