Introduction of a tube into a hollow organ to restore or maintain patency if obstructed. It is differentiated from CATHETERIZATION in that the insertion of a catheter is usually performed for the introducing or withdrawing of fluids from the body.
Intubations
D007668
Kidney
Body organ that filters blood for the secretion of URINE and that regulates ion concentrations.
Kidneys
D007682
Kidney Pelvis
The flattened, funnel-shaped expansion connecting the URETER to the KIDNEY CALICES.
Renal Pelvis,Pelvis, Kidney,Pelvis, Renal
D010388
Pelvis
The space or compartment surrounded by the pelvic girdle (bony pelvis). It is subdivided into the greater pelvis and LESSER PELVIS. The pelvic girdle is formed by the PELVIC BONES and SACRUM.
Pelvic Region,Region, Pelvic
D006801
Humans
Members of the species Homo sapiens.
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014513
Ureter
One of a pair of thick-walled tubes that transports urine from the KIDNEY PELVIS to the URINARY BLADDER.