Class notes
Lecture notes for LIFE128 - Introduction to Genetics and Development
- Course
- Institution
Lecture notes for module LIFE128 as taught at the university of Liverpool from week 7 onwards (after the poster assessment)
[Show more]
Seller
Follow
JessTheMess
Content preview
Endoderm – how to make a gut tubeFrom flat sheet to tube
Lateral plate mesoderm splits into parietal and visceral mesoderm, giving rise to the coelomic cavity,
which allows the gut tube to form - lateral folding
The flat sheet undergoes folds, movements and rotations to allow the endoderm to become an
internal gut tube
FoxA2 is a transcription factor that is expressed in all endoderm cells – allows labelling of endoderm
on its path to the gut tube (can see it happening)
At the posterior end of the embryo, the posterior intestinal portal forms – first form of a tube
Longitudinal folding
Brings gut tube into vicinity of mesodermal and ectodermal structures – juxtaposition of gut tube
with other tissues and organs, permits inductive events – other tissues direct or stimulate the
development of gut associated organs
Creates the anterior and posterior intestinal portals (foregut and hindgut)
The cardiac region is brought to the ventral side of the developing gut tube
Direct contact of ectoderm and endoderm at oropharyngeal membrane (future mouth) and cloacal
membrane (future anus)
Midgut opening to the yolk sac progressively narrows to form the umbilical cord
Gut associated organs begin to form as buds from the endoderm (thyroid, lung, liver, pancreas)
Celiac artery supplies foregut, superior mesenteric artery supplies midgut, inferior mesenteric artery
supplies hindgut
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller JessTheMess. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $6.44. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
72042 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now