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Questions and Answers
What is the function of the tiny hairs called cilia in the nostrils?
What is the function of the tiny hairs called cilia in the nostrils?
What separates the two nasal cavities from each other?
What separates the two nasal cavities from each other?
What is the name of the three projections that arise from the lateral walls of each nasal cavity?
What is the name of the three projections that arise from the lateral walls of each nasal cavity?
What is the function of the mucous membrane that lines the nasal cavities?
What is the function of the mucous membrane that lines the nasal cavities?
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What is the triangular framework of the organ composed of?
What is the triangular framework of the organ composed of?
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Study Notes
Nasal Organ
- The nasal organ is a special organ for smell and air intake, composed of a triangular framework of bone and cartilage covered by skin and lined by a mucous membrane.
- The nasal organ has two openings called nostrils.
Nostrils
- The nostrils contain tiny hairs called cilia that filter out dust and other particles present in the air, protecting the nasal passage and other regions of the respiratory tract.
Nasal Cavities
- The nasal cavities are two spaces located immediately inside the nostrils, between the roof of the mouth and the cranium.
- The nasal cavities are separated from each other by a partition called the nasal septum, which is formed of bone covered by mucous membrane.
Conchae
- The lateral (side) walls of each nasal cavity have three projections called conchae (superior, middle, and inferior).
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Description
This quiz covers the structure and function of the nasal cavity, including its composition, nostrils, and role in filtering air and protecting the respiratory tract.
