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==Formation==
==Formation==
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When the food material from the stomach (amashaya) reaches the large intestine (pakwashaya), it is dried up by the heat of [[pitta]] and absorbing property (ruksha guna) of vata to form lumps. [Cha. Sa. [[Chikitsa Sthana]] 15/11] Defecation is regulated by [[vata]] [[dosha]].The physiology of stool formation and defecation in described as follows.
When the food material from the stomach (amashaya) reaches the large intestine (pakwashaya), it is dried up by the heat of [[pitta]] and absorbing property (ruksha guna) of vata to form lumps. [Cha. Sa. [[Chikitsa Sthana]] 15/11] Defecation is regulated by [[vata]] [[dosha]].
The physiology of stool formation and defecation in described as follows.
Feces formation takes place in the large intestine.It carries out functions like absorbing water and electrolytes, forming and propelling feces toward the rectum for elimination. Most nutrients and up to 90% of the water are absorbed by the small intestine from the indigestible material.The ascending colon absorbs remaining water and other key nutrients from it to form solidified stool.The feces are stored in descending colon and are emptied into the rectum.The sigmoid colon contracts to increase the pressure inside the colon, causing the stool to move into the rectum. The rectum holds the feces awaiting elimination by defecation.<ref>Azzouz LL, Sharma S. Physiology, Large Intestine. [Updated 2020 Jul 27]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2020 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK507857/</ref>
Feces formation takes place in the large intestine.It carries out functions like absorbing water and electrolytes, forming and propelling feces toward the rectum for elimination. Most nutrients and up to 90% of the water are absorbed by the small intestine from the indigestible material.The ascending colon absorbs remaining water and other key nutrients from it to form solidified stool.The feces are stored in descending colon and are emptied into the rectum.The sigmoid colon contracts to increase the pressure inside the colon, causing the stool to move into the rectum. The rectum holds the feces awaiting elimination by defecation.<ref>Azzouz LL, Sharma S. Physiology, Large Intestine. [Updated 2020 Jul 27]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2020 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK507857/</ref>