Assertion: nephron's region | /r/CapableOf | act as collecting chamber
Facets:
Source sentences:
text: The kidneys are highly vascular (contain a lot of blood vessels) and are divided into three main regions: renal cortex (outer region which contains about 1.25 million renal tubules), renal medulla (middle region which acts as a collecting chamber), and renal pelvis (inner region which receives urine through the major calyces).