Question

The part of kidney tubules where the term urine is first used for fluid in it

Answer 1

I guess it it is distled convulated tubule

Answer 2

The part of kidney tubules where the term urine is first used for the fluid in it is called renal tubule.

The renal tubule contains the tubular fluid before it gets filtered through the glomerulus and passes to the collecting duct system.

The renal tubule is divided into three parts – proximal convoluted tubule, loop of Henle and distal convoluted tubule.