My father is planning to start receiving his pension from next month.

In physics, electrons absorb energy and move from the valence band to the conduction band.

Kinya is my best friend.

He is working diligently on that job.

He is a diligent student, always the first to arrive in class.

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

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

The pupillary sphincter adjusts the size of the pupil according to the intensity of light.

The vesical sphincter plays a crucial role in controlling the excretion of urine.

Dysfunction of the sphincter of Oddi is considered a type of gallstone disease.