Renal Pelvis

Renal Pelvis is the funnel-like enlarged proximal part of Ureter, also known as Pyelum. It is somewhat more curved on inferior side. It is a part of Urinary system and urine flows through it to the ureters. All the major structures i.e. arteries, veins and ureters, enter and leave kidneys through this depression.

Urethra Ureter Renal Pelvis Kidney Urinary Bladder Medulla Calyx Cortex Renal Pelvis Ureter

Renal Pelvis

STRUCTURE AND POSITION

Renal Pelvis is funneled shape and dilated. Larger end of the funnel is inside the kidneys.
It is present on medial concave side of kidneys on both sides.
Renal Pelvis gives off cup like projections inside kidney each of which are attached to renal papilla (Calyx, plural : Calyces)
Epithelium of Renal Pelvis is made up of elastic expandable cells (Transitional Epithelium) and it has loose connective tissue beneath it.

FUNCTION

Renal Pelvis functions like a funnel and collects urine formed in kidneys through its calyces. Then it funnels all of it into ureters to be transported into Urinary Bladder. It also produces rhythmic contractions which help in transfer of urine towards ureters (Peristalsis).

CLINICAL IMPORTANCE

Renal Pelvis is prone to develop several forms of cancer.

Report Error