Anatomy of the skull bones

What is the main function of the paranasal sinuses in the skull?

• Provide smell to the food

• Regulate body temperature

• Moisten, filter, and warm the air we breathe, provide resonance to the voice, and reduce the weight of the skull.

• Increase peripheral vision

How many types of paranasal sinuses are found in the human skull?

• 8

• 6

• 2

• 4

Where are the frontal sinuses located in the skull?

• In the frontal region of the skull, above the eyebrows and behind the forehead.

• In the occipital region of the skull, above the nape.

• At the top of the skull, near the crown.

• At the back of the skull, near the nape.

What function do the sphenoid sinuses have in the skull?

• Reduce weight of the skull and act as resonators for the voice

• Protect the brain from external impacts

• Regulate the temperature of the skull

• Facilitate chewing of food

What is the location of the maxillary sinuses in the skull?

• On the top of the nasal cavity, behind the cheeks and above the upper teeth.

• At the back of the head, near the nape of the neck.

• On the front of the skull, above the forehead.

• At the bottom of the nasal cavity, behind the eyes and below the lower teeth.

What importance do the ethmoid sinuses have in the anatomy of the skull?

• The ethmoid sinuses are only aesthetic in the structure of the skull

• The ethmoid sinuses are of no importance in the anatomy of the skull

• The ethmoid sinuses are responsible for digesting food

• The ethmoid sinuses are important for reducing the weight of the skull, humidifying and warming inhaled air, and providing resonance to the voice.

How do the paranasal sinuses relate to voice resonance?

• The paranasal sinuses have no relation to voice resonance.

• The paranasal sinuses create an echo that distorts the voice.

• The paranasal sinuses amplify and modify the quality of the voice by vibrating with vocal frequencies.

• The paranasal sinuses absorb the voice and make it less audible.

What role do the paranasal sinuses play in protecting the brain?

• They act as conduits to transport oxygen to the brain.

• They help regulate the brain's temperature.

• They produce cerebrospinal fluid to protect the brain.

• They act as cushions around the brain.