Optic vesicle

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Optic vesicle

Transverse section of head of chick embryo of forty-eight hours’ incubation. (Optic vesicle labeled at lower right.)

Human embryo about fifteen days old. Brain and heart represented from right side. Digestive tube and yolk sac in median section. (Optic vesicle labeled at center top.)
Latin	vesicula optica; vesicula ophthalmica
Gray's	p.1001
Carnegie stage	11
Code	TE E5.14.3.4.2.2.4

The eyes begin to develop as a pair of diverticula from the lateral aspects of the forebrain. These diverticula make their appearance before the closure of the anterior end of the neural tube; after the closure of the tube they are known as the optic vesicles.

They project toward the sides of the head, and the peripheral part of each expands to form a hollow bulb, while the proximal part remains narrow and constitutes the optic stalk.

Additional images

Head of chick embryo of about thirty-eight hours’ incubation, viewed from the ventral surface. X 26

External links

eye-012 — Embryo Images at University of North Carolina
Overview at vision.ca
Overview at temple.edu

This article incorporates text from a public domain edition of Gray's Anatomy.

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 Neuropoiesis

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

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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