BGDA Lecture - Development of the Nervous System: Difference between revisions
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[[Embryology_Textbooks|More Textbooks?]] | [[Embryology_Textbooks|More Textbooks?]] | ||
==Week 4 Neuralation== | |||
{| | |||
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<gallery> | |||
File:Stage10_SEM1.jpg|[[Carnegie_stage_10|Stage 10]] (22 - 23 days) | |||
File:Stage10_sem2.jpg|[[Carnegie_stage_10|Stage 10]] (22 - 23 days) | |||
File:Stage11 sem6.jpg|[[Carnegie_stage_11|Stage 11]] (23 - 26 days) | |||
File:Stage12_SEM3.jpg|[[Carnegie_stage_11|Stage 11]] (26 - 30 days) | |||
</gallery> | |||
| {{Neural Tube Closure 1 movie}} | |||
|} | |||
[[File:Neuralplate_001 icon.jpg|160px|link=Neural Plate Movie]] [[File:Neuraltube_001 icon.jpg|160px|link=Neural Tube Movie]] | |||
Ectoderm - 2 parts | |||
* midline [[N#neural plate|neural plate]] (columnar cells) | |||
* lateral surface ectoderm (cuboidal cells) | |||
** sensory [[P#placode|placodes]] | |||
** epidermis of skin, hair, glands, anterior pituitary, teeth enamel | |||
===Neural Plate=== | |||
[[File:Neural tube defect meningomyelocele.jpg|thumb|meningomyelocele]] | |||
[[Image:Neural_plate_movie_icon.jpg]][[Image:Neuralplate cartoon.png]] | |||
* extends from [[B#buccopharyngeal membrane|buccopharyngeal membrane]] to [[P#primitive node|primitive node]] | |||
* forms above [[N#notochord|notochord]] and [[P#paraxial mesoderm|paraxial mesoderm]] | |||
* neuroectodermal cells | |||
** broad brain plate | |||
** narrower spinal cord | |||
* 3 components form: [[F#floor plate|floor plate]], [[N#neural plate|neural plate]], [[N#neural crest|neural crest]] | |||
:'''Links:''' [[Neural System - Abnormalities]] | [[Abnormal_Development_-_Folic_Acid_and_Neural_Tube_Defects|Folic Acid and Neural Tube Defects]] | |||
Revision as of 10:51, 11 April 2017
Embryology - 26 Apr 2024 Expand to Translate |
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Introduction
Neural development is a complex and ongoing process that commences in week 3 and continues through into the postnatal period. This lecture will introduce concepts about the timing, origin and abnormalities of the nervous system. Lecture content will be added to this current page, the linked online textbook chapters are available as pre-reading for this lecture.
The human MRI movie below (head, sagittal plane, left to right) shows the central nervous system (CNS) development at the end of the embryonic period (week 8; GA week 10).
<html5media height="500" width="550">File:Stage23 MRI S01.mp4</html5media>
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Aim
To develop an understanding of the development of the nervous system and the consequences of abnormal development.
Draft Lecture Timetable - Monday 29 May 2017 09:00 AM - 10:00 AM Development of the nervous system Kensington - Rex Vowels Theatre