Question

what are reasons for reverse peristalsis​

Answer 1

Rᴇᴛʀᴏᴘᴇʀɪsᴛᴀʟsɪs ɪs ᴛʜᴇ ʀᴇᴠᴇʀsᴇ ᴏғ ᴛʜᴇ ɪɴᴠᴏʟᴜɴᴛᴀʀʏ sᴍᴏᴏᴛʜ ᴍᴜsᴄʟᴇ ᴄᴏɴᴛʀᴀᴄᴛɪᴏɴs ᴏғ ᴘᴇʀɪsᴛᴀʟsɪs. Iᴛ ᴜsᴜᴀʟʟʏ ᴏᴄᴄᴜʀs ᴀs ᴀ ᴘʀᴇᴄᴜʀsᴏʀ ᴛᴏ ᴠᴏᴍɪᴛɪɴɢ. Lᴏᴄᴀʟ ɪʀʀɪᴛᴀᴛɪᴏɴ ᴏғ ᴛʜᴇ sᴛᴏᴍᴀᴄʜ, sᴜᴄʜ ᴀs ʙᴀᴄᴛᴇʀɪᴀ ᴏʀ ғᴏᴏᴅ ᴘᴏɪsᴏɴɪɴɢ, ᴀᴄᴛɪᴠᴀᴛᴇs ᴛʜᴇ ᴇᴍᴇᴛɪᴄ ᴄᴇɴᴛᴇʀ ᴏғ ᴛʜᴇ ʙʀᴀɪɴ ᴡʜɪᴄʜ ɪɴ ᴛᴜʀɴ sɪɢɴᴀʟs ᴀɴ ɪᴍᴍɪɴᴇɴᴛ ᴠᴏᴍɪᴛɪɴɢ ʀᴇғʟᴇx.

Hᴏᴘᴇ ɪᴛ ʜᴇʟᴘs.... ❤❤

Answer 2

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Retroperistalsis is the reverse of the involuntary smooth muscle contractions of peristalsis. It usually occurs as a precursor to vomiting. Local irritation of the stomach, such as bacteria or food poisoning, activates the emetic center of the brain which in turn signals an imminent vomiting reflex.