The external anal sphincter plays a crucial role in helping us control defecation.

The anal sphincter is an important part of the body.

The internal anal sphincter is a muscle that helps us control defecation.

He worked hard to accomplish his goals.

He said that daily defecation is important for health.

He has a habit of defecating every morning after drinking coffee.

His role is the team leader.

Health is very important.

His opinion is very important.

He is good at controlling that game.