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How to remember germ tissue layers?

Discussion in 'MCAT Study Question Q&A' started by ej37, Jul 19, 2008.

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  1. ej37

    ej37 7+ Year Member

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    Jul 2, 2008
    I keep seeing germ tissue questions popping up on practice questions. I can't seem to keep straight what systems arise from what germ layers... how do you guys remember what comes from ectoderm, mesoderm, endoderm?
     
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  3. minhaj

    minhaj Awesomeness Incarnate 7+ Year Member

    201
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    Dec 3, 2007
    Birmingham,AL
    MDApps:
    • Ectoderm ---> Integument (everything you can see), lens of the eye and nervous system;
    • Endoderm---> lining of digestive and respiratory tracts, parts of liver, pancreas, thyroid and bladder;
    • Mesoderm---> circulatory system, excretory system, muslces, connective tissue, organs.
    Make a list a keep reviewing it.
     
  4. missbee

    missbee Accepted 2+ Year Member

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    Jun 19, 2008
    This is definitely more broad and not 100%, but helped me out a lot in Vert Morph:

    Ecto = outside, what you can see
    Meso = middle layers
    Endo = inner, the gut tube
     
  5. Bu2009

    Bu2009 2+ Year Member

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    Jun 7, 2008
    I had this comparative anatomy book that has like the embryo development and like all the germ layers color coded... You might want to have something like that.. sometimes a picture is worth a thousands words and helps out recall a lot.
     
  6. justdoit31

    justdoit31 5+ Year Member

    1,226
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    Jul 13, 2008
    Ectoderm- just think Ecto for Exterior... skin and stuff

    Mesoderm- in the middle- linings and really any place that something you inhale or swallow end up- GI tract, lungs, bladder etc.

    Endoderm- all the other stuff in there- for histology class the big thing was connective tissues- remember bone is connective tissue too!
     
  7. futuredoctor10

    futuredoctor10 10+ Year Member

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    Jan 25, 2007
    Ectoderm- "attract o derm" - what attracts a mate? Eye lens, the skin, exterior traits
    Mesoderm- "muscle" - muscle, circulatory & urinary systems (heart/bladder are muscles)
    Endoderm - "endernal organs" - including lining of internal organs/tracts, etc

    Mnemonics Courtesy of Kaplan
     
  8. jdent

    jdent 2+ Year Member

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    May 2, 2008
    bump!
     
  9. Adnama

    Adnama 2+ Year Member

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    Jun 11, 2008
    Well I have a great one but it is not appropriate for a public forum. :laugh:
     
  10. AZFutureDoc

    AZFutureDoc 5+ Year Member

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    May 26, 2008
    Better than the 4 F's?
     
  11. futuredoctor10

    futuredoctor10 10+ Year Member

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    Jan 25, 2007
    Please do share :) If you don't want to post publicly, PM? ;)
     
  12. spyderracing32

    spyderracing32 5+ Year Member

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    Jun 29, 2008

    Post it, these are ALWAYS the best for memorization. I have a really bad one for the trig functions. Everyone did SOH CAH TOA, but my mind was way in the gutter in trig lol.
     
  13. futuredoctor10

    futuredoctor10 10+ Year Member

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    Jan 25, 2007
    Yeah... also curious to know your version of SOH CAH TOA, spyderracing?
     
  14. czhang

    czhang 5+ Year Member

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    May 29, 2008
    Did you get mesoderm and endoderm mixed up? O_O
     
  15. Adamska

    Adamska 2+ Year Member

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    Aug 6, 2008
    LULZ, this fails because it doesn't account for the nervous system.
     
  16. futuredoctor10

    futuredoctor10 10+ Year Member

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    Jan 25, 2007
    True, unless you think "Brains and smarts are attractive" and then it fits :D
     
  17. Adamska

    Adamska 2+ Year Member

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    Aug 6, 2008
    attractive spinal cord is a strech...
     
  18. futuredoctor10

    futuredoctor10 10+ Year Member

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    Jan 25, 2007
    Haha that's true. I know it doesn't work for everything :)
     
  19. JC2

    JC2 5+ Year Member

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    Jul 20, 2008
    This is waht I'm using to remember, anyone wanna try and pick it apart? (not a mnemonic but it will reduce the amount of work you have to do)

    ecto - 'ecto' means outside so anything on the outside, plus the central nervous system (brain + spinal cord)

    meso - Musculoskeletal system (including the tissue that connects), vascular system (including teh heart and the spleen because that's all red blood cells :p), urogenital system (so that would mean kidneys/bladder and the reproductive organs), notochord

    endo - everything else


    c'mon that's only four things to memorize for meso i'd asy that's pretty good
     
  20. Adamska

    Adamska 2+ Year Member

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    Aug 6, 2008
    it's still good either way.
     
  21. czhang

    czhang 5+ Year Member

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    May 29, 2008
    great tricks! very helpful
     

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