Question

why is right kidney placed slightly lower in postion as compared to left kidney?

Answer 1

The right kidney sits under the liver, the biggest internal organ. So it's lower down (2-8cm lower) compared to the left kidney that is under the spleen, a much smaller organ. The tops of the spleen and liver are more or less in line due to the diaphragm, which is why where their lower borders are makes this type of difference.