Development of the Nervous System

Lecture 4

Objectives

1. Describe the processes:1. Formation of the embryonic disc2. Formation of the neural tube3. Formation of the peripheral nervous system4. Formation of the brain

What layer of tissue are somites formed out of?

A. EndodermB. MesodermC. Ectoderm

Endoderm

Meso

derm

Ectoderm

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Answer Now

Assign numbers

Within your group, assign each member a number 1-3.

Example of a good presentation

https://www.youtube.com/watch?v=Ue6f-_IG42Y

Your task

Within your group, prepare a 5 minute presentation of each of the 4 processes.1. Formation of the embryonic disc2. Formation of the neural tube3. Formation of the peripheral nervous system4. Formation of the brain

Use drawings to enhance your explanation.You have 20 minutes to prepare.During the next 20 minutes of class, I will

randomly pick a group and a number (1-3) to present. For each process, I will pick a different person. 4 people will present today, and it could be you, so be ready!

Embryonic Disc

Neural Tube

Peripheral NS

Brain

When is the neural tube formed?

A. Day 0-14B. Day 15-end of

8th week C. Day 28-birthD. During the first

week

Day 0-14

Day 15-end of 8th

week

Day 28-birt

h

During t

he first w

eek

25% 25%25%25%

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The Pons develops from which enlargment?

A. MesencephalonB. MetencephalonC. MyelencephalonD. DiencephalonE. Telencephalon

Mese

ncephalon

Mete

ncephalon

Myelence

phalon

Diencephalo

n

Telencephalon

20% 20% 20%20%20%

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Answer Now

Literature Review

Assignment 1 due next class Good questions might resemble:

◦ How does serotonin affect mood?◦ What role does the hippocampus play in memory formation?◦ Is there a correlation between athleticism and cerebellum

volume? Guidelines for topics:

◦ Be prepared to tweak your question based on available evidence – there should be enough existing research on your topic! (>15 high quality peer reviewed articles in the past 50 years)

◦ Questions that are too broad (>30 meta-analyses in the past 20 years) will be too difficult to analyze thoroughly

◦ Start finding interesting articles and skim for question ideas Find, read, and annotate 5 articles by next class

Researching

Library off-campus sign inGoogle scholarRefWorks, Mendeley, other applicationsLibrarians & ResourcesWriting Center

No need to pay for articles!!

Conclusion

Literature Review Assignment 1 due next class◦Bring articles (paper or digital) and topic ideas

to class!No Readings

Organization of the Course