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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
  • Physiology, Defecation - StatPearls - NCBI Bookshelf
    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 relaxation Defecation is involuntary from the colon to the internal anal sphincter, where smooth muscles push feces out
  • 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
  • Defecation – Introduction to Neuroscience
    Defecation is now imminent The only thing preventing defecation from happening is the external anal sphincter, a voluntary muscle in the pelvic floor muscle group
  • Defecation - (General Biology I) - Vocab, Definition, Explanations . . .
    Defecation is the process of eliminating waste material from the digestive tract through the anus, marking the final step in digestion 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
  • 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
  • Understanding the physiology of human defaecation and disorders of . . .
    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 - 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





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