Air Sinuses of the Skull

What are the air cavities in the skull around the nose called?

Which of the following is NOT one of the major sinus types found in the skull?

Where do the air sinuses open within the nasal cavity?

What is the primary function of the sinuses located in the skull?

Which combination of sinuses are correctly identified in the content?

Air Sinuses of the Skull

Air cavities within the bones of the skull, surrounding the nasal cavity.
Open into the lateral wall of the nasal cavity.
Include several types, namely: frontal, ethmoidal, sphenoidal, and maxillary sinuses.

Frontal Sinuses

Located in the frontal bone, situated above the eyes.
Contribute to facial structure and skull's overall shape.
Often asymmetric in size and shape between individuals.

Ethmoidal Sinuses

Located within the ethmoid bone, situated behind and between the eyes.
Complex network of interconnected air cells.
Crucial for nasal cavity structure and support.

Sphenoidal Sinuses

Positioned in the sphenoid bone, located deep within the skull.
Generally develop later in life compared to other sinuses.
Contribute to the floor of the cranial fossa and provide structural support.

Maxillary Sinuses

Situated in the maxillary bone, the largest sinuses.
Located below the eyes and within the cheekbones.
Play a role in both facial structure and function.
Most commonly site of sinus infections.

Explore the various air sinuses located within the skull, including frontal, ethmoidal, sphenoidal, and maxillary sinuses. Each type plays a crucial role in the structure and function of the nasal cavity and overall facial anatomy. Test your knowledge on their locations, characteristics, and significance.