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They are present because if the face was solid bone, the anterior portion of the head would weigh more than the posterior part of the head, making it off balance. The air-filled bones weigh less than solid bone, so the head stays balanced on the neck.
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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.
Why the para nasal sinuses are assembled around your nose?
They have two main functions: 1) As in all sinuses, they give size without added weight and 2) They give depth to the voice. You have the para nasal sinuses, assembled around your nose. You have maxillary sinuses, frontal sinuses, ethmoid sinuses and sphenoid sinuses around your nose. These sinuses make the area around your nose, very light in weight. The diagonally opposite part of the skull is thick and heavy. That is occipital bone for example! This has an evolutionary advantage to human being. After deep inspiration, you can float in the water, without any efforts. So these para nasal sinuses has helped you to keep your nose out of water. The opposite thick part of the skull help you in this endeavour. You can very easily understand the importance of your nose in water verses your nose out of water. That is the reason, why the para nasal sinuses are assembled around your nose. All the other advantages are accessory, probably.
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).
Where are the ethmoid sinuses?
The sinuses are paired air pockets located within the bones of the face. They are: the ethmoid sinuses; located between the eyes, just behind the bridge of the nose.
Where are all the sinuses located?
The paranasal sinus is behind your nose and cheeks. http://www.cancerbackup.org.uk/Cancertype/Headneck/Typesofheadneckcancers/Paranasalsinuscancer The medical term for it is called the maxillae
What functions do the sinuses serve?
beause it suckes
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.
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.
Do humans have sinus cavities at the base of their neck?
If by sinus cavities you mean the confluences of the sinuses, then Yes
What is the common name given to the venous sinuses in the dura mater?
dural sinuses, cerebral sinuses, or cranial sinuses
Why the para nasal sinuses are assembled around your nose?
They have two main functions: 1) As in all sinuses, they give size without added weight and 2) They give depth to the voice. You have the para nasal sinuses, assembled around your nose. You have maxillary sinuses, frontal sinuses, ethmoid sinuses and sphenoid sinuses around your nose. These sinuses make the area around your nose, very light in weight. The diagonally opposite part of the skull is thick and heavy. That is occipital bone for example! This has an evolutionary advantage to human being. After deep inspiration, you can float in the water, without any efforts. So these para nasal sinuses has helped you to keep your nose out of water. The opposite thick part of the skull help you in this endeavour. You can very easily understand the importance of your nose in water verses your nose out of water. That is the reason, why the para nasal sinuses are assembled around your nose. All the other advantages are accessory, probably.
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).
What is the pH level in humans?
The pH level in humans is about 7.4 for most cellular functions
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.
What functions does hair serve in humans?
To keep you warm.
What are some gerbil brain functions?
same as a humans
Which are the biggest sinuses?
The frontal sinuses housed in the frontal bone are the largest sinuses.The maxillary sinuses are the second largest.
