Exam (elaborations)
MCBM 2 - Neurulation Questions with 100% Correct Answers
- Course
- Institution
MCBM 2 - Neurulation Questions with 100% Correct Answers
[Show more]
Content preview
1 of 96Definition
sources of mesoderm in embryo
Give this one a try later!
epithelium of alimentary (GI) canal; parenchyma (functional cells) of pancreas
and liver; thyroid, parathyroid; thymus; lung and trachea; middle ear epithelium;
urinary bladder and urethral epithelium; vaginal epithelium
, thicker than the original ectoderm, has a layer of actin filaments at the apical
surface that start contracting to initiate neural folding, causing the cells to take
on a pyramidal shape
dermamyotome layer of the somites
extra embryonic mesoderm from epithelium lining the yolk sac, secondary
mesoderm of gastrulation comes from the primitive streak, and secondary
mesoderm from neural crest cells
Don't know?
2 of 96
Definition
how are muscle fibers formed?
Give this one a try later!
failure of formation of lamina and spine in lower thoracic / upper lumbar
vertebral column, causing herniation of dura and sometimes spinal cord
extra embryonic mesoderm from epithelium lining the yolk sac, secondary
mesoderm of gastrulation comes from the primitive streak, and secondary
mesoderm from neural crest cells
epithelium of alimentary (GI) canal; parenchyma (functional cells) of pancreas
and liver; thyroid, parathyroid; thymus; lung and trachea; middle ear epithelium;
urinary bladder and urethral epithelium; vaginal epithelium
, migrating myoblasts reach their destination then fuse to form a primary
myotube which starts growing and incorporating fetal myoblasts to
become a secondary myotube which eventually becomes a mature
skeletal muscle fiber which incorporates satellite cells when repair is
needed
Don't know?
3 of 96
Definition
Give this one a try later!
IMAGE 5 IMAGE 2
IMAGE 12 IMAGE 13
Don't know?
, 4 of 96
Definition
what happens to the original endoderm
Give this one a try later!
hypoblast - replaced by mesodermal cells; endoderm form epithelial
surfaces, but the supporting elements of any given organ are derived from
its mesoderm
neural folds come together and fuse (above the fusion point becomes
prosencephalon, below the spinal cord) - neural groove is now the neural tube,
space inside the neural tube is the neural canal
mesoderm - forms the skeletal and muscular systems
ectoderm - develops into the outer layer of the skin
Don't know?
5 of 96
Definition
what does the neural crest give rise to?
Give this one a try later!
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 codersimon. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $8.00. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67096 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now