The 4 Layers of the Alimentary Canal

This video describes the functions of the 4 layers of the Alimentary canal. The alimentary canal is the part of the digestive system that food actually passes through (the "food tube.") and excludes accessory digestive organs such as the liver and pancreas. There are 4 layers to the alimentary canal that are made up of different tissue types. From inner most to outmost the order goes mucosa, submucosa, muscle, and serosa.

Mucosa - innermost, produces mucous which helps food move along and protects more delicate tissues from being digested.

Submucosa - lots of blood vessels that nourish surrounding tissues.

Muscle - moves the food along through muscular contractions.

Serosa - produces serous fluid which protects and lubricates the outermost layer from sticking to other organs.

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[larryg.]

It is clear, concise with all the required information without having to be too long tutorial. Thanks!

[b_fourc]

posted 8 years ago but is still brilliant, I understood everything clearly, thanks so much

[pctv]

Great video, straight to the point. Thanks Mr.Herbst!

[lilomimi]

Mr. Herbst! Thank you for this straightforward video!

[Andrea-ydji]

loved the simplicity! hard to make it this simple when i have 20 pages of notes on the same topic lol

[stephenmayers]

Thank you!  I'm fascinated by human anatomy and physiology.  Your videos facilitate understanding of this subject like none other on YouTube.  If you've authored any books on this or other sciences, I'd love to know about them.

[kavya-sbfz]

Thanks alot!! This vid was concise and super helpful to understand the concept quickly.

[zahraajaber]

This is awesome and really helpful! I don't say that about many videos! Thank you so much

[gulpedits]

i can't sit here and listen to you abuse the pancreas like that sir.

[bakhtawarnaz]

so frank and easy way to teach.. thnku sir :)

[sarahha.]

Thanks Mr. Herbs, that was extremely helpful<3

[oceanhikes]

Thanks for your video. I'm such a visual learner so this video really helped.

[rosora]

Clear and easy to understand, thanks!

[meetan-]

Very good presentation. Benefited. Thanks

[faizanaaz_]

Very Beautifully explained Sir 👍👍 Quick nd very helpful

[foneperson]

Thank you for the great video. Helped a lot

[MsMeiandmyself]

oh thanks that is awesome.. almost ready for my exam.

[lovesports]

Great job, I found this very helpful.

[SandeepKaur-wrzy]

Thank you Sir for this video.
It helped me a lot :)

[praveenkhare]

Thank you sir.It helped me to understand well