About 10 or 12 cm from the anus, these branches break up into several small branches.

It is done for cosmetic purposes, to make the color of the anus more uniform with the surrounding area.

The blastopore becomes the anus whist the gut tunnels through the embryo to the other side where the opening becomes the mouth.

Being associated with the sense of smell, it is associated with the nose, and being associated with excretion, it is associated with the anus.