posterior segment
[pɔˈstɪriər ˈsɛɡmənt]
nounpl: posterior segments
segmento posterior
1. In anatomy, the rear or back portion of a structure or organ, particularly used in ophthalmology to refer to the back part of the eye behind the lens
The posterior segment of the eye includes the vitreous humor, retina, and optic nerve.
O segmento posterior do olho inclui o humor vítreo, a retina e o nervo óptico.
2. In zoology, the rear section of an arthropod's body or segmented organism
The posterior segment of the insect contains the abdomen.
O segmento posterior do inseto contém o abdômen.
3. Any rear division or section in anatomical, biological, or structural contexts
Surgeons examined the posterior segment for any abnormalities.
Os cirurgiões examinaram o segmento posterior em busca de anomalias.
This is primarily technical and medical terminology used in ophthalmology, anatomy, and biology across both American English and Brazilian Portuguese medical communities. There is no colloquial or cultural variation; it remains consistent across all Portuguese-speaking medical professionals and English-speaking medical professionals worldwide.
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