| 释义 |
optic vesicle
noun[ C ]
anatomy specializeduk /ˌɒp.tɪk ˈves.ɪ.kəl/ us /ˌɑːp.tɪk ˈves.ɪ.kəl/
either of two structures on the surface of the brain of an embryo (= a baby before it is born) that develops into an optic cup, and later into part of the eye:
The eyes first appear as a pair of optic vesicles.
By four weeks, major regions of the human brain can be recognized, including the forebrain, midbrain, hindbrain, and optic vesicles from which the eyes develop.
The embryos showed a well-developed optic calyx, crystalline lens and optic vesicle.
The embryos already contained an optic vesicle and several somites.
Subsequently, the optic vesicle invaginates to form the optic cup.
SMART Vocabulary: related words and phrases
The eye & surrounding area
beadily
beetling
canthus
chiasm
chiasma
compound eye
eyeball
eyelid
glassy
limbus
macula
macula lutea
macular
monobrow
optic nerve
suborbital
superciliary
supraoptic
supraorbital
tear duct
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