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Recap: Tissue from Mouth to Anus

What is each type of tissue/cell/structure/epithelium for?

Mouth: Food, fluid, etc. goes in here
Anus: Material not digested or recycled in your body comes out here

Boundless.com

We (animals) are made of 4 different types of tissue:

  1. Epithelium tissue
  2. Connective tissue
  3. Muscle tissue
  4. Nervous tissue


Image from slideshare.net


1. Epithelium tissue
(c) 2001 Benjamin Cummings, an imprint of Addison Wesley Longman, Inc. 

  • Covers & protects
  • Avascular, so get supply of nourishment from substances that diffuse through the basement membrane from the connective tissue (which lies below the epithelium)
    • Basement membrane: delicate layer made of protein fibers and GAGs (glycosaminoglycans)



2. Connective tissue
From myanatomymentor

  • Lays below the epithelium
  • Connects different tissues, organs, organ systems


3. Muscle tissue
From slideshare.net
From Southwest Tennessee Community College


  • Produces force and motion


4. Nervous tissue
From Austin Community College
From National Cancer Institute
University of Leeds

  • Controls body function and movement


So to Recap:

From OpenStax

From slideshare


Mouth --> Anus

Mouth = Lip --> stratified squamous with keratin on outside
(oral side is without keratin)

Anus = Rectoanal junction --> Goes from simple columnar of the GI to suddenly stratified squamous

This, we begin and end with stratified squamous epithelium and everything comes full circle (or tubular...*da dum ching!*)

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