Renal pyramids are parts of the ...... .

Write a short note on the types of nephrons.

Given below are two statements:
Statement $I$: At the base of the urinary bladder,there is an inverted triangular area called the trigone.
Statement $II$: Three layers of dartos tunic muscles are present in the wall of the urinary bladder.
In the light of the above two statements,choose the correct option.

Draw a labeled diagram showing the various parts of the human excretory system.

The structural and functional unit of the human kidney is:

Show the structure of a renal corpuscle with the help of a diagram.