Major Cavities of The Skull Flashcards

Questions and Answers

What does the cranial cavity hold?

brain

What does the orbital cavity hold?

eyeballs

What does the oral cavity hold?

mouth

What does the nasal cavity hold?

nose Signup and view all the answers

What are paranasal sinuses?

air cavities within the cranial bones that open into the nasal cavities Signup and view all the answers

Which of the following describes the location of the frontal sinus?

Superior to sphenoid sinus Signup and view all the answers

Which sinus is located inferior to the frontal sinus?

Sphenoid sinus Signup and view all the answers

Where is the ethmoidal sinus located in relation to the sphenoid and maxillary sinuses?

Superior to maxillary sinus Signup and view all the answers

Study Notes

Major Cavities of the Skull

Cranial cavity: Encloses and protects the brain, essential for central nervous system function.
Orbital cavity: Houses the eyeballs, providing protection and support for vision.
Oral cavity: Contains the mouth, playing a crucial role in digestion and communication.
Nasal cavity: Serves as the passage for air inhalation and houses the structures of the nose.

Paranasal Sinuses

Comprise air-filled cavities located within the cranial bones that connect to the nasal cavities.
Frontal sinuses: Positioned superior to the sphenoid sinus, involved in reducing skull weight and resonance for voice.
Sphenoid sinuses: Located inferior to the frontal sinus and superior to the ethmoidal sinus, contribute to skull stability.
Ethmoidal sinuses: Found inferior to the sphenoid sinus and superior to the maxillary sinus, aid in filtering and humidifying air.
Maxillary sinuses: Positioning inferior to the ethmoidal sinus, they are the largest of the paranasal sinuses, playing a role in voice resonance and facial shape.

Description

This quiz provides flashcards for the major cavities of the skull, including the cranial, orbital, oral, and nasal cavities. Each card features a definition to help with memorization and understanding of the functions of these cavities. Perfect for students in anatomy or medical courses.