nasal cavity
Quick Summary
The nasal cavity is the prominent structure between the eyes that serves as the entrance to the respiratory tract and contains the olfactory organ. It is separated into two passages by the nasal septum. The nasal cavity's complex shape is due to bony ridges called nasal conchae, which increase the surface area for warming and humidifying inhaled air. This cavity is lined with a mucous membrane containing cilia that trap debris, and mucus helps capture dust, carbon, and bacteria. Sinus cavities are also located within the skull on either side of the nose. The forward section of the nasal cavity is the vestibule, and the roof of the mouth forms the floor of the nose.1234
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human respiratory systemThe nose…of an internal space, the nasal cavity. It is subdivided into a left and right canal by a thin medial cartilaginous and bony wall, the nasal septum. Each canal opens to the face by a nostril and into the pharynx by the choana. The floor of the nasal cavity is…
Read More…of an internal space, the nasal cavity. It is subdivided into a left and right canal by a thin medial cartilaginous and bony wall, the nasal septum. Each canal opens to the face by a nostril and into the pharynx by the choana. The floor of the nasal cavity is…
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noseThe shape of the nasal cavity is complex. The forward section, within and above each nostril, is called the vestibule. Behind the vestibule and along each outer wall are three elevations, running generally from front to rear. Each elevation, called a nasal concha or turbinate, hangs over an air…
Read MoreThe shape of the nasal cavity is complex. The forward section, within and above each nostril, is called the vestibule. Behind the vestibule and along each outer wall are three elevations, running generally from front to rear. Each elevation, called a nasal concha or turbinate, hangs over an air…
Read More- olfactory system
…of the nose and the nasal cavities, which in their upper parts support the olfactory mucous membrane for the perception of smell and in their lower parts act as respiratory passages.
Read More…of the nose and the nasal cavities, which in their upper parts support the olfactory mucous membrane for the perception of smell and in their lower parts act as respiratory passages.
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skullThe nasal cavity is formed by the vomer and the nasal, lachrymal, and turbinate bones. In infants the sutures (joints) between the various skull elements are loose, but with age they fuse together. Many mammals, such as the dog, have a sagittal crest down the centre…
Read MoreThe nasal cavity is formed by the vomer and the nasal, lachrymal, and turbinate bones. In infants the sutures (joints) between the various skull elements are loose, but with age they fuse together. Many mammals, such as the dog, have a sagittal crest down the centre…
Read More