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defecation    
n. 澄清,净化,排便



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  • 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) from the digestive tract via the anus or cloaca
  • Defecation | Anatomy, Physiology Benefits | Britannica
    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 can vary from several times daily to three times weekly and remain within normal limits
  • Defecation - Rectum - Control - TeachMePhysiology
    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
  • Understanding the physiology of human defaecation and . . . - PubMed
    Defecation physiology* Defecography Diet Fecal Incontinence physiopathology* Gastrointestinal Motility physiology Gastrointestinal Transit physiology* Humans Intestine, Large innervation Intestine, Large physiology* Magnetic Resonance Imaging Magnetic Resonance Imaging, Cine Manometry Pelvic Floor innervation Pelvic Floor
  • Physiology of Defecation: Unraveling the Intricate Mechanisms . . . - DoveMed
    Explore the physiology of defecation, including gastrointestinal motility, rectal filling and sensation, the defecation reflex, and factors affecting bowel movements Understand the importance of healthy bowel habits and learn how to address constipation or difficulties with stool elimination
  • Understanding the physiology of human defaecation and . . . - Nature
    Takano, S , Nakashima, M , Tsuchino, M , Nakao, Y Watanabe, A Influence of foot stool on defecation: a prospective study Pelviperineology 37, 101–103 (2018)
  • 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 activate mechanoreceptors in the rectal mucosa
  • 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 abdominal muscles contract, increasing intra-abdominal pressure to assist in expelling the stool
  • Defecation reflex: Overview and what can affect it? - Medical News Today
    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
  • Constipation Defecation Problems | ACG
    Discover comprehensive resources and information on Constipation and Defecation Problems provided by ACG Explore more about these common gastrointestinal issues





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