Search results
The choanae (sg.: 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).
Mar 13, 2024 · Choana. 1/6. Synonyms: Posterior nasal aperture. The choanae are oval-shaped openings that lie between the nasal cavity and the nasopharynx. The choanae are rigid openings that are completely surrounded by bone. They serve as an outflow from the nasopharynx into the mouth and throat.
Jan 25, 2018 · A choana (plural: choanae) is one of the two apertures at the back of the nasal cavity that opens into the nasopharynx, the open space behind the nasal cavity in the airways [1]. It is also known as the posterior nasal aperture, and the internal or posterior naris (plural: nares) [2].
Dec 22, 2022 · Choana, also known as the posterior nasal aperture, is a small opening located at the back of the nasal cavity. It serves as a passageway for air to travel between the nasal cavity and the pharynx, which is the cavity located behind the nasal cavity and above the larynx.
The Choanae are the posterior nasal aperture, separated by the vomer. It is the opening between the nasal cavity and the nasopharynx. It is therefore not a structure but a space bounded as follows: anteriorly and inferiorly by the horizontal plate of palatine bone, superiorly and posteriorly by the sphenoid bone; laterally by the medial ...
The meaning of CHOANA is either of the pair of posterior apertures of the nasal cavity that open into the nasopharynx —called also posterior naris.
Nov 4, 2004 · The choana, a unique ‘internal nostril’ opening from the nasal sac into the roof of the mouth, is a key part of the tetrapod (land vertebrate) respiratory system.
