Defecation (or defaecation) follows digestion and is the necessary biological process by which organisms eliminate a solid, semisolid, or liquid waste material known as feces (or faeces) from the …

Nov 13, 2023 · The process begins with mass movement from the colon to the rectum, initiating the defecation reflex, which involves rectal contraction and internal and external anal sphincter …

Dec 16, 2025 · Defecation, the act of eliminating solid or semisolid waste materials (feces) from the digestive tract. In human beings, wastes are usually removed once or twice daily, but the frequency …

Sep 29, 2023 · However, most people have a bowel movement one to three times daily. This article explores the defecation reflex, the types of defecation reflexes, what triggers defecation, and more.

Discover comprehensive resources and information on Constipation and Defecation Problems provided by ACG. Explore more about these common gastrointestinal issues.

When defecation proceeds, signals cause strong contractions in the colon and rectum, propelling feces toward the anus. Simultaneously, the external anal sphincter is voluntarily relaxed, and abdominal …

Aug 12, 2023 · Explore the physiology of defecation, including gastrointestinal motility, rectal filling and sensation, the defecation reflex, and factors affecting bowel movements. Understand the importance …

Apr 10, 2023 · The rectum is reponsible for temporary storage of faeces before defecation. As it becomes filled the rectal walls expand and stretch receptors stimulate the desire to defecate.

This process involves the coordinated actions of various muscles and neural signals to expel feces, which are formed from undigested food, bacteria, and other waste products. Efficient defecation is …

Movement of feces (undigested food, bacteria, mucus, and cells from the lining of the intestines) through the bowel and out the anus. Also called bowel movement.