What is a sinus in the 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 do the paranasal sinuses drain into?

All sinus ostia drain into the nares at locations beneath the middle and superior turbinates. The posterior ethmoid and sphenoid sinuses drain into the superior meatus below the superior turbinate.

Is the ureter part of the renal sinus?

The cortex and medulla make up the parenchyma, or functional tissue, of the kidney. The central region of the kidney contains the renal pelvis, which is located in the renal sinus, and is continuous with the ureter. The renal pelvis is a large cavity that collects the urine as it is produced.

What is the entrance of the renal sinus called?

…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 the Conchae the paranasal sinuses?

nasal concha, also called Turbinate, or Turbinal, any of several thin, scroll-shaped bony elements forming the upper chambers of the nasal cavities. They increase the surface area of these cavities, thus providing for rapid warming and humidification of air as it passes to the lungs.

Where do the sinuses drain into?

Both air and mucus flow through your sinuses and drain into your nose, through tiny openings called ostia (or singular, ostium). Little hairs called cilia help the mucus move through the sinus cavities. The mucus from the sinuses drains into your nasal passages and then down the back of your throat to be swallowed.

What is the difference between renal pelvis and hilum?

Renal Pelvis 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 urine-bearing tubes that exit the kidney and empty into the urinary bladder. The renal pelvis connects the kidney to the rest of the body.

What are the 3 layers of kidney?

3. The Kidneys Are Composed of Three Main Sections. Each kidney consists of an outer renal cortex, an inner renal medulla, and a renal pelvis.

What is the entrance of the renal sinus?

6. The renal hilus, located medially, is the opening into the renal sinus and transmits the renal artery, vein, nerves and is the location of the renal pelvis (Fig.

What is the difference between the renal sinus and the renal hilum?

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 is the entry and exit site for structures servicing the kidneys: vessels, nerves, lymphatics, and ureters.