I was reading about nephrons in my physiology book when i came across this-
The efferent arterioles and peritubular capillaries technically constitute a portal system
But according to Wikipedia, renal portal system is absent in mammals. Can someone please explain this contradiction?
Edit 1: Could it be that humans are an exception to the case and do contain a renal portal system?
Edit 2: When we were discussing this in class, the my lecturer did say, "They are like portal sytems."
Why is human renal portal system not considered a portal system? Although, it connects two capillary beds (efferent arterioles and peritubular capillaries)
Edit 3- Some sites do say that the capillary beds that connect generally belong to different organs. Could this be responsible for exclusion of human renal portal sytem?