Antegrade peristalsis is due to
* Peristalsis can be defined as a motor pattern of the gut organ musculature that can propel content into the anal (antegrade peristalsis) or oral (retrograde peristalsis) direction * Impulses travelling orad activate ascending contraction * Neurotransmitters here are acetylcholine, substance P, and neurokinin A. * Impulses travelling caudad activate descending relaxation * Neurotransmitters here are VIP, NO, and PACAP (pituitary adenylyl cyclase activating polypeptide). Ref:- Physiology of the Gastrointestinal Tract Sixth Edition; pg num:- 368
Serotonin
Ach
Substance P
VIP
G.I.T