Peristalsis Explained

Peristalsis is the way food is moved through the digestive system. Picture trying to squeeze toothpaste through a tube and you’ll be imagining something kind of similar to peristalsis.

Let’s look at the oesophagus as an example. A small piece of food known as a bolus must be pushed down towards the stomach. Here’s how. There are circular muscles in the oesophagus (and other parts of the digestive system). When they contract at one point, the tube gets narrower at that place. This squeezes the food beneath it downwards. Then, right here, a little further down, the next set of muscles contract, while the previous ones relax. The tube becomes narrower a little further down, pushing the food downwards. This continues on all the way down pushing the food along.
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MUSIC
Natty Roadser - JR Tundra
Noble Dub - Silent Partner

[M.p]

What about the longitudinal muscle... if it contract or relax what will happen ? I just can't imagine that...

[mrjothescholar]

Thank you very much for the information

[eliaserkatondoka]

Can sir also do a video on coordination in humans please

[mrjothescholar]

Thank you very much for the information

[lola_]

Thank God for this amazing creation ❤❤

[gyo]

What about the longitudinal muscles? I'm review for biology! I think you maybe bypassed it??

[khalidafiaz]

really helpful
Ask them ''Who is it that rescues you from the dangers in deep darknesses of the land and the sea, and whom do you call in humility and secrecy of your hearts saying if He saves us ffrom this we will be surely grateful
say ;it is Allah alone that saves you from this and every other distress, yet you asssociate others with Him in His divinity
[quran chapter 6;verse 63, 64]

[amproductions]

Thank you so much sir 🙏 I understood it Crystal clear❤

[risakonno]

Hello I’m a Japanese student who studies IB ESS! I hope you’ll post more ESS material as it is rare to find it posted on anything other than this channel! That would help me a lot! Thank you!!!

[WaiYan-onsr]

Thank you so much for the really helpful animations and clear explanation !

[Riya-xquq]

Thankyou sir... Crystal clear explanation ❤❤

[MiddleChow]

Allow me to express some objections. I believe there might be potential inaccuracies in your demonstration of food bolus propulsion. The illustration merely showcases the observable two-dimensional movement, whereas the actual propulsion in three-dimensional space is likely to differ. In fact, the concept of circular muscle also applies to the two-dimensional domain.