Defecation

Definition

Defecation is the final act of digestion, where solid waste is expelled from the body through the rectum and anus. It involves voluntary and involuntary muscle contractions to eliminate feces.

Related terms

Feces: The solid or semisolid waste material that is expelled from the body during defecation.

Rectum:

The final section of the large intestine, where feces are stored before they are expelled from the body.

Peristalsis:

The series of wave-like muscle contractions that move food through the digestive tract, including towards the rectum for defecation