| Optic stalk | |
|---|---|
 Transverse section of head of chick embryo of fifty-two hours’ incubation. | |
 Optic cup and choroidal fissure seen from below, from a human embryo of about four weeks. (Optic stalk labeled at center left.) | |
| Details | |
| Carnegie stage | 14 |
| Identifiers | |
| Latin | pedunculus opticus |
| TE | stalk_by_E5.14.3.4.2.2.6 E5.14.3.4.2.2.6 |
| Anatomical terminology | |
Theoptic vesicles 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 theoptic stalk.[1][2]
Closure of thechoroidal fissure in the optic stalk occurs during the seventh week ofdevelopment. The former optic stalk is then called theoptic nerve.[3] In short, the optic stalks are the structures that precede the optic nervesembryologically.
This article incorporates text in thepublic domain frompage 1001 of the 20th edition ofGray's Anatomy(1918)
