| 释义 |
chiasma
noun[ Cusually singular ]
anatomy specializeduk /kaɪˈæz.mə/ us /kaɪˈæz.mə/pluralchiasmata
an instance of two structures in the body crossing and forming an X, especially the optic chiasma(= the connection in the brain between the two optic nerves that connect the eyes to the brain and allow you to see with both eyes together):
Most of its fibres have their origins in the retina, and reach the chiasma through the optic nerves.
This is a further study on chiasma distribution in the human male.
These axons fail to cross over in the chiasma and head for the wrong side of the brain.
Visual impulses from the retina pass through the optic nerve, optic chiasma, optic tract, lateral geniculate body and optic radiation to the visual cortex of the occipital lobe.
SMART Vocabulary: related words and phrases
The eye & surrounding area
beadily
beetling
canthus
chiasm
ciliary
compound eye
eyeball
eyelid
glassy
macula
macula lutea
macular
monobrow
oculomotor
optic nerve
suborbital
superciliary
supraoptic
supraorbital
tear duct
You can also find related words, phrases, and synonyms in the topics:
The brain & nervous system
Synonym
chiasm
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