Difference between revisions of "Neural - Amygdala Development"

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{| style="width:90%" border=1 cellpadding=3 cellspacing=0
{{Template:Neural Table}}
|  valign=top| '''Neural Tube'''
|  valign=top| '''Primary Vesicles'''
|  valign=top| '''Secondary Vesicles'''
|  valign=top| '''Adult Structures'''
|  rowspan=5 valign=middle| Brain
|  rowspan=2 valign=middle| Prosencephalon
|  valign=top| Telencephalon
|  valign=top| Rhinencephalon, Amygdala, Hippocampus, Neocortex, Basal Ganglia, Lateral Ventricles
|  valign=top| Diencephalon
|  valign=top| Epithalamus, Thalamus, Hypothalamus, Subthalamus, Pituitary, Pineal, Third ventricle
|  valign=top| Mesencephalon
|  valign=top| Mesencephalon
|  valign=top| Tectum, Cerebral peduncle, Pretectum, Cerebral aqueduct
|    rowspan=2 valign=middle| Rhombencephalon
|  valign=top| Metencephalon
|  valign=top| Pons, Cerebellum
|  valign=top| Myelencephalon
|  valign=top| Medulla oblongata
|  colspan=4 valign=top | Spinal Cord
==Early Brain Vesicles==
==Early Brain Vesicles==

Revision as of 13:07, 4 November 2010

Notice - Mark Hill
Currently this is only a template page and is being updated (this notice removed when completed).
Stage10 sem6.jpg


Neural groove closing to neural tube, early week 4
(Stage 10)

Neural development is one of the earliest systems to begin and the last to be completed after birth. This development generates the most complex structure within the embryo and the long time period of development means in utero insult during pregnancy may have consequences to development of the nervous system.

The early central nervous system begins as a simple neural plate that folds to form a groove then tube, open initially at each end. Failure of these opening to close contributes a major class of neural abnormalities (neural tube defects).

Within the neural tube stem cells generate the 2 major classes of cells that make the majority of the nervous system : neurons and glia. Both these classes of cells differentiate into many different types generated with highly specialized functions and shapes. This section covers the establishment of neural populations, the inductive influences of surrounding tissues and the sequential generation of neurons establishing the layered structure seen in the brain and spinal cord.

  • Neural development beginnings quite early, therefore also look at notes covering Week 3- neural tube and Week 4-early nervous system.
  • Development of the neural crest and sensory systems (hearing/vision/smell) are only introduced in these notes and are covered in other notes sections.

Neural Links: ectoderm | neural | neural crest | ventricular | sensory | Stage 22 | gliogenesis | neural fetal | Medicine Lecture - Neural | Lecture - Ectoderm | Lecture - Neural Crest | Lab - Early Neural | neural abnormalities | folic acid | iodine deficiency | Fetal Alcohol Syndrome | neural postnatal | neural examination | Histology | Historic Neural | Category:Neural

Some Recent Findings

  • Dynamic imaging of mammalian neural tube closure[1]

Development Overview

Neuralation begins at the trilaminar embryo with formation of the notochord and somites, both of which underly the ectoderm and do not contribute to the nervous system, but are involved with patterning its initial formation. The central portion of the ectoderm then forms the neural plate that folds to form the neural tube, that will eventually form the entire central nervous system.

Early developmental sequence: Epiblast - Ectoderm - Neural Plate - Neural groove and Neural Crest - Neural Tube and Neural Crest

Neural Tube Development
Neural Tube Primary Vesicles Secondary Vesicles Adult Structures
week 3 week 4 week 5 adult
neural plate
neural groove
neural tube

prosencephalon (forebrain) telencephalon Rhinencephalon, Amygdala, hippocampus, cerebrum (cortex), hypothalamus‎, pituitary | Basal Ganglia, lateral ventricles
diencephalon epithalamus, thalamus, Subthalamus, pineal, posterior commissure, pretectum, third ventricle
mesencephalon (midbrain) mesencephalon tectum, Cerebral peduncle, cerebral aqueduct, pons
rhombencephalon (hindbrain) metencephalon cerebellum
myelencephalon medulla oblongata, isthmus
spinal cord, pyramidal decussation, central canal

Early Brain Vesicles

Primary Vesicles

CNS primary vesicles.jpg

Secondary Vesicles

CNS secondary vesicles.jpg


  1. <pubmed>20558153</pubmed>





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Search Pubmed: Amygdala Embryology | Amygdala Development

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Cite this page: Hill, M.A. (2021, April 10) Embryology Neural - Amygdala Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Neural_-_Amygdala_Development

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© Dr Mark Hill 2021, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G