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The biological role of the sinuses is debated, but a number of possible functions have been proposed:
- Decreasing the relative weight of the front of the skull, and especially the bones of the face. The shape of the facial bones is important, as a point of origin and insertion for the muscles of facial expression.
- Increasing resonance of the voice.
- Providing a buffer against blows to the face.
- Insulating sensitive structures like dental roots and eyes from rapid temperature fluctuations in the nasal cavity.
- Humidifying and heating of inhaled air because of slow air turnover in this region.
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What is the function of the pulmonic sinuses?
The function of the pulmonary sinuses is to separate both of the semilunar cusps that are in the pulmonary trunk valve. They forma think wall between the two.
What is the function of the parnasal sinuses to the skull?
its when air passes within the skull
What normal condition of the sinuses does endoscopic sinus surgery restore?
Normal function of the sinuses requires ventilation through the ostia (mouth-like opening) and is facilitated by a mucociliary transport process that maintains a constant flow of mucus out of the sinuses
What is the function of the pulmonic?
The function of the pulmonary sinuses is to separate both of the semilunar cusps that are in the pulmonary trunk valve. They forma think wall between the two.
What is the common name given to the venous sinuses in the dura mater?
dural sinuses, cerebral sinuses, or cranial sinuses
What are the four pairs of paranasal sinuses?
Paranasal sinuses are a group of four air-filled spaces. Maxillary sinuses surround the nasal cavity, frontal sinuses are above the eyes, ethmoid sinuses are between the eyes and sphenoid sinuses are behind the eyes.
What is thought to lighten the head and provide resonancefor the voice?
The sinuses: paranasal sinuses are a group of four paired air-filled spaces that surround the nasal cavity (maxillary sinuses), above the eyes (frontal sinuses), between the eyes (ethmoidal sinuses), and behind the ethmoids (sphenoidal sinuses).
Are Sinuses found in the temporal bone?
The paranasal sinuses (which surround the nose) are found in the following bones: frontal, ethmoid, sphenoid, and maxillary. The maxillary sinuses are the largest of all sinuses. There are also sinuses found near the mastoid process of the temporal bone called the mastoid sinuses. The mastoid sinuses communicates with the inner ear, whereas the paranasal sinuses communicate with the nasal cavity.
Functions of the sinuses?
The sinuses are basically pockets of air in the bone, 2 on the forehead, and one under each eye. The 'inner lining' of the sinuses is a thin layer of tissue. They are all interconnected with the nasal cavity, hense when you get a cold, you have the feeling that there is 'pressure on your head'The reason for their existence is simple:They act as natural 'Shock-absorbers'. If the head were to take a direct hit to the forehead, and if the sinuses weren't there, the impact would exert pressure on the rest of the skull. Lack of sinuses would make the skull more prone to cracking.
Which are the biggest sinuses?
The frontal sinuses housed in the frontal bone are the largest sinuses.The maxillary sinuses are the second largest.
Mucous membrane-lined cavities are called?
Sinuses
What sinuses are located just above the eyebrows?
If you have a headache just about your eyes, it is very likely that it is your sinuses. Sinus pressure can be very painful.
