Neuroectoderm - Misplaced Pages

Ectoderm that goes on to form the neural plate

Neuroectoderm

Details
Precursor	Ectoderm
Gives rise to	Neural tube, neural crest
Identifiers
Latin	epithelium tubi neuralis, neuroectoderma, epithelium tubae neuralis
TE	E5.15.1.0.0.0.1
Anatomical terminology[edit on Wikidata]

Neuroectoderm (or neural ectoderm or neural tube epithelium) consists of cells derived from the ectoderm. Formation of the neuroectoderm is the first step in the development of the nervous system. The neuroectoderm receives bone morphogenetic protein-inhibiting signals from proteins such as noggin, which leads to the development of the nervous system from this tissue. Histologically, these cells are classified as pseudostratified columnar cells.

After recruitment from the ectoderm, the neuroectoderm undergoes three stages of development: transformation into the neural plate, transformation into the neural groove (with associated neural folds), and transformation into the neural tube. After formation of the tube, the brain forms into three sections; the hindbrain, the midbrain, and the forebrain.

The types of neuroectoderm include:

Neural crest
- pigment cells in the skin
- ganglia of the autonomic nervous system
- dorsal root ganglia.
- facial cartilage
- aorticopulmonary septum of the developing heart and lungs
- ciliary body of the eye
- adrenal medulla
Neural tube
- brain (rhombencephalon, mesencephalon and prosencephalon)
- spinal cord and motor neurons
- retina
- posterior pituitary

References

^ Larsen's Human Embryology (Fifth ed.). Elsevier. 2015. p. 77. ISBN 978-1-4557-0684-6.

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

External links

Human embryonic development in the first three weeks

Week 1

Week 2
(Bilaminar)

Week 3
(Trilaminar)

Germ layers	Archenteron/Primitive streak Primitive pit Primitive node/Blastopore Primitive groove Gastrula Gastrulation Regional specification
Ectoderm	Surface ectoderm Neuroectoderm Somatopleuric mesenchyme Neurulation Neural crest
Endoderm	Splanchnopleuric mesenchyme
Mesoderm	Axial mesoderm Paraxial Somite Somitomere Intermediate Lateral plate Intraembryonic coelom Splanchnopleuric mesenchyme Somatopleuric mesenchyme

Development of the nervous system

Neurogenesis

General	Neural development Neurulation Neurula Notochord Neuroectoderm Neural plate Neural fold Neural groove Neuropoiesis Adult neurogenesis
Neural crest	Cranial neural crest Cardiac neural crest complex Truncal neural crest
Neural tube	Rostral neuropore Neuromere / Rhombomere Cephalic flexure Cervical flexure Pontine flexure Alar plate Basal plate Glioblast Neuroblast Germinal matrix

Eye

Ear

Otic placode
- Otic pit
- Otic vesicle

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Anatomy

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See also

References

External links