What is the function of sinus?
What is the function of sinus?
The sinuses lighten the skull or improve our voices, but their main function is to produce a mucus that moisturizes the inside of the nose. This mucus layer protects the nose from pollutants, micro-organisms, dust and dirt.
How many sinuses does a human have?
There are four paired sinuses (named for the skull bones in which they are located) in the human head: Frontal sinuses: The right and left frontal sinuses are located near the center of the forehead (frontal bone) just above each eye.
What is the function of maxillary sinus?
The maxillary sinuses might simply serve to improve the respiratory function of the nose. A flow of inspiratory air does not occur. The maxillary sinuses are decisively involved in the production of nitrogen monoxide (NO) and thus in supporting the immune defense of the nasal cavity.
What are sinus cells?
The ethmoid sinuses arise in the ethmoid bone, forming several distinct air cells between the eyes. They are a collection of fluid-filled cells at birth that grow and pneumatize until the age of 12. The ethmoid cells are shaped like pyramids and are divided by thin septa.
Where is sinus located?
Your sinuses are air spaces in your skull and facial bones that make up the upper part of your respiratory tract from your nose into your throat. The sinuses are in your forehead (frontal sinuses), inside your cheekbones (maxillary sinuses), and behind the nose (ethmoid and sphenoid sinuses).
What is the function of ethmoid sinus?
Ethmoid sinuses are found in the spongy ethmoid bone in the upper part of the nose between the eyes. They are lined with cells that make mucus to keep the nose from drying out.
What is the function of sphenoid sinus?
Sinuses are air-filled sacs (empty spaces) on either side of the nasal cavity that filter and clean the air breathed through the nose and lighten the bones of the skull.
