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  1. Defecation - Wikipedia

    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) …

  2. Defecation | Anatomy, Physiology & Benefits | Britannica

    Nov 12, 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 …

  3. Physiology, Defecation - StatPearls - NCBI Bookshelf

    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 …

  4. Defecation reflex: Overview and what can affect it? - Medical News Today

    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, …

  5. What Is Defaecation and How Does It Work? - Biology Insights

    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 …

  6. Physiology of Defecation: Unraveling the Intricate Mechanisms

    Aug 12, 2023 · This article explores the physiology of defecation, delving into the intricate mechanisms that coordinate the movement of stool through the digestive tract and its …

  7. DEFECATION Definition & Meaning - Merriam-Webster

    The meaning of DEFECATION is the discharge of solid waste from the anus : the act or process of defecating. How to use defecation in a sentence.

  8. Defecation – Basic Human Physiology

    When undigested material reaches the distal colon and rectum it triggers a coordinated series of events known collectively as the defecation reflex. As the rectum fills, its walls stretch and …

  9. Constipation & Defecation Problems | ACG

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

  10. Defecation - Rectum - Control - TeachMePhysiology

    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.