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.) | |
Details | |
Carnegie stage | 11 |
Gives rise to | Human eyes |
Identifiers | |
Latin | vesicula optica; vesicula ophthalmica |
TE | vesicle_by_E5.14.3.4.2.2.4 E5.14.3.4.2.2.4 |
Anatomical terminology |
The eyes begin to develop as a pair of diverticula (pouches) from the lateral aspects of the forebrain. These diverticula make their appearance before the closure of the anterior end of the neural tube; [1] [2] after the closure of the tube around the 4th week of development, they are known as the optic vesicles. Previous studies of optic vesicles suggest that the surrounding extraocular tissues – the surface ectoderm and extraocular mesenchyme – are necessary for normal eye growth and differentiation. [3]
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, which goes on to form the optic nerve. [4] [5]
This article incorporates text in the
public domain from
page 1001 of the 20th edition of
Gray's Anatomy (1918)
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.) | |
Details | |
Carnegie stage | 11 |
Gives rise to | Human eyes |
Identifiers | |
Latin | vesicula optica; vesicula ophthalmica |
TE | vesicle_by_E5.14.3.4.2.2.4 E5.14.3.4.2.2.4 |
Anatomical terminology |
The eyes begin to develop as a pair of diverticula (pouches) from the lateral aspects of the forebrain. These diverticula make their appearance before the closure of the anterior end of the neural tube; [1] [2] after the closure of the tube around the 4th week of development, they are known as the optic vesicles. Previous studies of optic vesicles suggest that the surrounding extraocular tissues – the surface ectoderm and extraocular mesenchyme – are necessary for normal eye growth and differentiation. [3]
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, which goes on to form the optic nerve. [4] [5]
This article incorporates text in the
public domain from
page 1001 of the 20th edition of
Gray's Anatomy (1918)