
Also known as choanae, choana
thumb|right|The choanae (internal nostrils) of a cat, indicated by the dashed lines and bounded by the vomer (blue gray) and the [[palatine bone (orange)]]
via Wikipedia infobox
thumb|right|The choanae (internal nostrils) of a cat, indicated by the dashed lines and bounded by the vomer (blue gray) and the [[palatine bone (orange)]]
The choanae (: choana), posterior nasal apertures or internal nostrils are two openings found at the back of the nasal passage between the nasal cavity and the pharynx, in humans and other mammals (as well as crocodilians and most skinks). They are considered one of the most important synapomorphies of tetrapodomorphs, that allowed the passage from water to land.
via Wikidata · CC0
via Wikidata sitelinks · CC0
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).