neuroblast: Definition from Answers.com

A neuroblast is a dividing cell that will develop into neurons or glia.^{[citation needed]} The characterisation of neuroblasts and their development in Drosophila melanogaster was widely achieved by Chris Doe, Corey Goodman and Mike Bate. In humans, neuroblasts produced by stem cells in the adult subventricular zone migrate into damaged areas after brain injuries. However, they are restricted to the subtype of small interneuron-like cells, and it is unlikely that they contribute to functional recovery of stratial circuits. ^[1]

Some sources distinguish neuroblasts from neural stem cells.^[2]

References

^ Liu, F; You, Y; Li, X; Ma, T; Nie, Y; Wei, B; Li, T; Lin, H et al. (April 2009). "Brain Injury Does Not Alter the Intrinsic Differentiation Potential of Adult Neuroblasts". The Journal of Neuroscience 29 (16): 5075–5087. doi:10.1523/JNEUROSCI.0201-09.2009. PMID 19386903. http://www.jneurosci.org/cgi/content/abstract/29/16/5075.
^ "wberesford.hsc.wvu.edu". http://wberesford.hsc.wvu.edu/histolch10.htm. Retrieved 2010-04-08.

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Prenatal development/Mammalian development of nervous system (GA 9.733 and GA 10.1002, TE E5.13-16)

Neurogenesis

General neural development/ neurulation/neurula	Notochord · Neuroectoderm · Neural plate (Neural fold, Neural groove)

Neural crest	Cranial neural crest (Cardiac neural crest complex) · Truncal neural crest

Neural tube	Rostral neuropore Neuromere/Rhombomere Cephalic flexure · Pontine flexure Alar plate (sensory) · Basal plate (motor) Glioblast · Neuroblast Germinal matrix

Eye development

Neural tube: Optic vesicle · Optic stalk · Optic cup

Surface ectoderm: Lens placode

Auditory development

Otic placode (Otic pit, Otic vesicle)

note: NS is mostly ectoderm, but mesoderm is precursor for epineurium, perineurium, and endoneurium

M: CNS

anat(n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco(m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug(N1A/2AB/C/3/4/7A/B/C/D)

M: EYE

anat(g/a/p)/phys/devp/prot

noco/cong/tumr, epon

proc, drug(S1A/1E/1F/1L)

M: EAR

anat(e/p)/phys/devp

noco/cong, epon

proc, drug(S2)

Human cell types / list derived primarily from ectoderm

Surface ectoderm

Integumentary system	Trichocyte · Keratinocyte

Nervous system	anterior pituitary (Gonadotrope, Corticotrope, Thyrotrope, Somatotrope, Lactotroph )

Neural crest

Endocrine system	Chromaffin cell · Parafollicular cell

Integumentary system	Melanoblast → Melanocyte (Nevus cell) Merkel cell

Teeth	Odontoblast · Cementoblast

Nervous system	glia: Schwann cell · Satellite glial cell

Eyes	Corneal keratocyte

Digestive system	Enterochromaffin cell

Neural tube

Nervous system
(Neural stem cell)

Neuroblast	Neuron

Glioblast	Oligodendrocyte progenitor → Oligodendrocyte · Astrocyte · Ependymal cell · Pinealocyte

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neuroblast

neu·ro·blast

neu·ro·blast

neuroblast

Neuroblast

See also

References