The renal hilum is the entry and exit site for structures servicing the kidneys: vessels, nerves, lymphatics, and ureters. The medial-facing hila are tucked into the sweeping convex outline of the cortex. Emerging from the hilum is the renal pelvis, which is formed from the major and minor calyxes in the kidney.
What is renal sinus in kidney?
The renal sinus is a cavity within the kidney which is occupied by the renal pelvis, renal calyces, blood vessels, nerves and fat. The renal hilum extends into a large cavity within the kidney occupied by the renal vessels, minor renal calyces, major renal calyces, renal pelvis and some adipose tissue.
What is a renal pelvis?
Listen to pronunciation. (REE-nul PEL-vus) The area at the center of the kidney. Urine collects here and is funneled into the ureter, the tube that connects the kidney to the bladder.
What is concave side of kidney?
The hilum is the concave part of the bean-shape where blood vessels and nerves enter and exit the kidney; it is also the point of exit for the ureters. The renal cortex is granular due to the presence of nephrons—the functional unit of the kidney.
Where is the Hilus in the kidney?
The renal hilum (Latin: hilum renale) or renal pedicle is the hilum of the kidney, that is, its recessed central fissure where its vessels, nerves and ureter pass. The medial border of the kidney is concave in the center and convex toward either extremity; it is directed forward and a little downward.
What is located in the renal hilus?
The medially-located hilum contains blood vessels, nerves, and the ureters. The single medullary papilla extends deep into the renal pelvis, which often contains both white and brown adipose tissue.
What is the purpose of the renal sinus?
Fatty compartment along the hilus of kidney that invests the renal calyces, pelvis, blood vessels, lymphatics and nerves (image A) & (image B). Renal sinus abuts the renal cortical columns of Bertin without a connective tissue interface. Important landmark for staging renal carcinoma (extrarenal extension).
What is the renal sinus also known as?
…the kidney known as the renal (kidney) sinus. The hilus is the point of entry and exit of the renal arteries and veins, lymphatic vessels, nerves, and the enlarged upper extension of the ureters.
What is the function of renal pelvis in kidney?
The renal pelvis functions as a funnel for urine flowing to the ureter. The renal pelvis is the location of several kinds of kidney cancer and is affected by infection in pyelonephritis.
What is the role of the renal pelvis in the kidney?
renal pelvis, enlarged upper end of the ureter, the tube through which urine flows from the kidney to the urinary bladder. The large end of the pelvis has roughly cuplike extensions, called calyces, within the kidney—these are cavities in which urine collects before it flows on into the urinary bladder. …
What is the difference between pelvis and renal pelvis?
renal pelvis, enlarged upper end of the ureter, the tube through which urine flows from the kidney to the urinary bladder. The pelvis, which is shaped somewhat like a funnel that is curved to one side, is almost completely enclosed in the deep indentation on the concave side of the kidney, the sinus.
Why do kidney stones form in the renal pelvis?
Kidney stones are mineral deposits in the renal calyces and pelvis that are found free or attached to the renal papillae. They contain crystalline and organic components and are formed when the urine becomes supersaturated with respect to a mineral.
What is the hilum of the renal pelvis?
Its central part presents a deep longitudinal fissure, bounded by prominent overhanging anterior and posterior lips. This fissure is a hilum that transmits the vessels, nerves, and ureter. From anterior to posterior, the renal vein exits, the renal artery enters, and the renal pelvis exits the kidney.
What passes through the hilum of the kidney?
This fissure is a hilum that transmits the vessels, nerves, and ureter. From anterior to posterior, the renal vein exits, the renal artery enters, and the renal pelvis exits the kidney.
What is the gross anatomy of the renal pelvis?
Gross anatomy. The renal pelvis is triangular in shape, lies posteriorly in the renal hilum surrounded by fat and vessels and is formed by either the union of two-to-three major calyces or of seven-to-eleven minor calyces.
What is the hilum of the ureter?
Its central part presents a deep longitudinal fissure, bounded by prominent overhanging anterior and posterior lips. This fissure is a hilum that transmits the vessels, nerves, and ureter.
