Neuroectoderm
Precursor	ectoderm
Gives rise to	neural tube, neural crest

Neuroectoderm (or neural ectoderm) is the term for ectoderm which receives BMP-inhibiting signals from proteins such as noggin, which leads to the development of the nervous system from this tissue.

The types of neuroectoderm include:

• Neural crest
  • pigment cells in the skin
  • ganglia of the autonomic nervous system
  • dorsal root ganglia.
  • facial cartilage
  • spiral septum of developing heart
  • ciliary body of the eye
  • adrenal medulla

• Neural tube
  • brain (rhombencephalon, mesencephalon and prosencephalon)
  • spinal cord and motor neurons
  • retina
  • posterior pituitary

[edit] See also

• neural plate
• neuroectodermal tumor
• neuroepithelial cell

[edit] External links

• Neuroectoderm at eMedicine Dictionary
• bdyfm-007 — Embryology at UNC
• http://sprojects.mmi.mcgill.ca/embryology/earlydev/week3/neurulation.html
• http://www.med.umich.edu/lrc/coursepages/M1/embryology/embryo/08nervoussystem.htm

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

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v • d • e Developmental biology > Human embryogenesis (development of embryo) and development of fetus First three weeks Week 1 Fertilization · Egg activation · Zygote · Cleavage · Morula · Blastula (Blastomere) · Blastocyst · Inner cell mass Week 2 (Bilaminar) Hypoblast · Epiblast Week 3 (Trilaminar) Germ layers Archenteron/Primitive streak (Primitive pit, Primitive knot/Blastopore, Primitive groove) · Gastrula/Gastrulation · Regional specification Ectoderm Surface ectoderm · Neuroectoderm · Somatopleure · Neurulation · Neural crest Endoderm Splanchnopleure Mesoderm Chorda- · Paraxial (Somite/Somitomere/Sclerotome/Myotome/Dermatome) · Intermediate · Lateral plate (Intraembryonic coelom, Splanchnopleure/Somatopleure) Extraembryonic/ uterus Trophoblast (Cytotrophoblast, Syncytiotrophoblast) Blastocoele · Yolk sack/exocoelomic cavity · Heuser's membrane · Extraembryonic coelom · Vitelline duct Umbilical cord (Umbilical artery, Umbilical vein, Wharton's jelly) · Allantois Placenta · Decidua (Decidual cells) · Chorionic villi/Intervillous space · Gestational sac (Amnion/Amniotic sac/Amniotic cavity, Chorion) Histogenesis Programmed cell death (Apoptosis) · Stem cells · Germ line development Organogenesis Limb development: Limb bud · Apical ectodermal ridge/AER other structures: Eye development · Cutaneous structure development · Heart development · Development of the urinary and reproductive organs (Some dates are approximate—see Carnegie stages and a timeline.)

v • d • e Prenatal development/Mammalian development of nervous system (GA 9.733) General neural development/ neurulation/neurula Notochord · Neuroectoderm · Neural plate · Neural folds · Neural groove Neural crest (Cranial, Trunk, Cardiac) · Neural tube (Neuromere/Rhombomere, Cephalic flexure) Alar plate (sensory) · Basal plate (motor) Glioblast · Neuroblast note: mostly ecoderm, but mesoderm is precursor for epineurium, perineurium, and endoneurium central nervous system navs: anat/physio/dev, noncongen/congen/neoplasia, symptoms+signs/eponymous, proc