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GIT REFLEXES

Neurosurgery

GIT REFLEXES

1. Gastro-colic reflex - increase in colonic activity after ingestion of food. Cholinergically mediated reflex.
2. Colo-colonic reflex - causes muscles above the dilatation to contsrict and muscles below to relax, propelling food forward. Generated by the myenteric plexus.
3. Recto-colic reflex - colonic peristalsis in response to chemical/mechanical stimulation of the rectum/anal canal. Mediated by the pelvic nerve.
4. Ano-rectal reflex - involuntary relaxation of the internal anal sphincter as stool passes into the rectum.


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REFERENCES

1. Wilkinson, I. (2017). Oxford handbook of clinical medicine. Oxford: Oxford University Press.
2. Hannaman, R. A., Bullock, L., Hatchell, C. A., & Yoffe, M. (2016). Internal medicine review core curriculum, 2017-2018. CO Springs, CO: MedStudy.
3. Image: no reference available.

Ⓒ A. Manickam 2018

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