Alar plate

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Alar plate

Diagram to illustrate the alar and basal laminæ of brain vesicles.

aged about four and a half weeks.
Latin	lamina dorsolateralis; lamina alaris
Gray's	subject #184 735
Carnegie stage	13
Precursor	neural tube
Code	TE E5.14.1.0.1.0.4

The alar plate (or alar lamina) is a neural structure in the embryonic nervous system, part of the dorsal side of neural tube, that involves the communication of general somatic and general visceral sensory impulses. The caudal part later becomes sensory axon part of the spinal cord.

The alar plate specifically later on becomes the dorsal gray of the spinal cord, and develops into the sensory nuclei of cranial nerves V, VII, VIII, IX, and X. The inferior olivary nucleus, mesencephalic nucleus of V, main sensory nucleus of V, and red nucleus are also developed from this plate.^[1]

References

^ Siegel, Allan (2006). Essential Neuroscience. Baltimore, MD: Lippincott Williams & Wilkins. ISBN 0781750776.

External links

This developmental biology article is a stub. You can help Wikipedia by expanding it.

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)

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