Embryologic derivatives - USMLE Forums
USMLE Forums Logo
USMLE Forums         Your Reliable USMLE Online Community     Members     Posts
Home
USMLE Articles
USMLE News
USMLE Polls
USMLE Books
USMLE Apps
Go Back   USMLE Forums > USMLE Step 1 Forum

USMLE Step 1 Forum USMLE Step 1 Discussion Forum: Let's talk about anything related to USMLE Step 1 exam


Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 01-05-2014
USMLE Forums Newbie
 
Steps History: Not yet
Posts: 6
Threads: 3
Thanked 1 Time in 1 Post
Reputation: 11
Default Embryologic derivatives

Hi everyone, I was wondering if any of you guys develop any system or way to learn this embryologic derivatives, is so confusing to me I don't know why, I try to memorize it and its impossible to do so, Im trying to look for any logical way to learn it, if any of you can help me with this Ill be very grateful. Thanks in advance!!
Reply With Quote Quick reply to this message



  #2  
Old 01-06-2014
USMLE Forums Addict
 
Steps History: Not yet
Posts: 146
Threads: 1
Thanked 156 Times in 56 Posts
Reputation: 166
Default

Quote:
Originally Posted by berrmd View Post
Hi everyone, I was wondering if any of you guys develop any system or way to learn this embryologic derivatives, is so confusing to me I don't know why, I try to memorize it and its impossible to do so, Im trying to look for any logical way to learn it, if any of you can help me with this Ill be very grateful. Thanks in advance!!
If you watch Kaplan embryo videos they really help you out. A rough a dirty outline goes like this:

there are 3 layers, the outermost ectoderm (surface and neuro), the middle mesoderm, and the inner endoderm.

Ectoderm - all the superficial stuff - hair, skin, lens of the eye, and the nervous system (neuro-ectoderm)

Endoderm - all the stuff on the inside - gut tube derivatives (digestive tract), internal organs EXCLUDING SPLEEN. If you understand the development from Kaplan you will never forget that point, but just remember, the Spleen is mesoderm.

Mesoderm - All the stuff in the middle, between your internal organs and your skin so... muscles, bones, cartilage, heart, blood, etc...

Thats the rough and dirty break down. So if you get a question and you arent sure, just ask yourself "Is it on the surface or nervous system? (Ectorderm). Is it an organ or part of the digestive tract? (Endoderm). Is it all the other stuff in between? (Mesoderm)."

Now the last and the most important thing is the Neural Crest derivatives. There is a long list and you need to memorize it. Im sorry, no 2 ways about this and its very important because if you have 1 neural crest migration defect chances are you have another somewhere else. If you go through Kaplan Embryo, you will understand and know most of them, but also memorize the list in FA.
Reply With Quote Quick reply to this message
The above post was thanked by:
berrmd (01-06-2014), nsesereso (01-06-2014), shine4ever (01-06-2014)
  #3  
Old 01-06-2014
USMLE Forums Newbie
 
Steps History: Not yet
Posts: 6
Threads: 3
Thanked 1 Time in 1 Post
Reputation: 11
Default

Quote:
Originally Posted by SeraphimMD View Post
If you watch Kaplan embryo videos they really help you out. A rough a dirty outline goes like this:

there are 3 layers, the outermost ectoderm (surface and neuro), the middle mesoderm, and the inner endoderm.

Ectoderm - all the superficial stuff - hair, skin, lens of the eye, and the nervous system (neuro-ectoderm)

Endoderm - all the stuff on the inside - gut tube derivatives (digestive tract), internal organs EXCLUDING SPLEEN. If you understand the development from Kaplan you will never forget that point, but just remember, the Spleen is mesoderm.

Mesoderm - All the stuff in the middle, between your internal organs and your skin so... muscles, bones, cartilage, heart, blood, etc...

Thats the rough and dirty break down. So if you get a question and you arent sure, just ask yourself "Is it on the surface or nervous system? (Ectorderm). Is it an organ or part of the digestive tract? (Endoderm). Is it all the other stuff in between? (Mesoderm)."

Now the last and the most important thing is the Neural Crest derivatives. There is a long list and you need to memorize it. Im sorry, no 2 ways about this and its very important because if you have 1 neural crest migration defect chances are you have another somewhere else. If you go through Kaplan Embryo, you will understand and know most of them, but also memorize the list in FA.
Cool stuff, thank you very much!!
Reply With Quote Quick reply to this message
The above post was thanked by:
Richmind (12-08-2014)



Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the USMLE Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Medical School
Choose "---" if you don't want to tell. AMG for US & Canadian medical schools. IMG for all other medical schools.
USMLE Steps History
What steps finished! Example: 1+CK+CS+3 = Passed Step 1, Step 2 CK, Step 2 CS, and Step 3.

Choose "---" if you don't want to tell.

Favorite USMLE Books
What USMLE books you really think are useful. Leave blank if you don't want to tell.
Location
Where you live. Leave blank if you don't want to tell.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Germ layer derivatives aliawn88 USMLE Step 1 Forum 2 01-01-2013 06:43 PM
Brachial cleft derivatives Dr. Mexito USMLE Step 1 Forum 5 03-27-2012 04:58 AM
Embryologic Development when the period missed! ricko335 USMLE Step 1 Forum 16 08-16-2011 02:00 PM
The Embryologic Origin of Sacrococcygeal Tumor meka USMLE Step 1 Forum 5 05-15-2011 10:41 AM
Confusion about the embryologic origin of the anterior 2/3 of the tongue schiwei USMLE Step 1 Forum 2 12-28-2010 07:16 AM

RSS Feed
Find Us on Facebook
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.

USMLE® & other trade marks belong to their respective owners, read full disclaimer
USMLE Forums created under Creative Commons 3.0 License. (2009-2014)