What’s inside a kidney?
The two main parts of a kidney
The kidneys are made up of two main parts – the outer part, known as the cortex, and the inner part, called the medulla.
The kid who needed a clean-up was wearing a corset (cortex) and a medal (medulla). Note that the medal (medulla) is in the centre of the corset (cortex).
Diagram of cortex and medulla