Podcast
Questions and Answers
What is the primary function of the frontal sinus?
What is the primary function of the frontal sinus?
Which of the following structures contains the supraorbital notch?
Which of the following structures contains the supraorbital notch?
What is the anatomical location of the glabella?
What is the anatomical location of the glabella?
Which cranial suture separates the frontal bone from the parietal bones?
Which cranial suture separates the frontal bone from the parietal bones?
Signup and view all the answers
What is the name of the small opening located at the junction of the frontal and nasal bones?
What is the name of the small opening located at the junction of the frontal and nasal bones?
Signup and view all the answers
Which structure articulates with the nasal bone through the frontal notch?
Which structure articulates with the nasal bone through the frontal notch?
Signup and view all the answers
Which of the following is NOT a function of the frontal sinus?
Which of the following is NOT a function of the frontal sinus?
Signup and view all the answers
What is the name of the suture that separates the two halves of the frontal bone?
What is the name of the suture that separates the two halves of the frontal bone?
Signup and view all the answers
Study Notes
Frontal Bone
Frontal Sinus
- Air-filled cavities located within the frontal bone
- Two separate sinus cavities, one on each side of the midline
- Functions:
- Reduce weight of the skull
- Warm and humidify inspired air
- Add resonance to the voice
- Provide mucous drainage
Supraorbital Ridge
- A bony prominence located above the orbit (eye socket)
- Forms the upper margin of the orbit
- Contains the supraorbital notch (or foramen), which transmits the supraorbital nerve and vessels
Glabella
- A smooth, flat area located between the supraorbital ridges
- The most anterior (frontal) point of the frontal bone
- Used as a landmark for measuring the size and shape of the skull
Cranial Sutures
- The frontal bone articulates with adjacent bones through cranial sutures:
- Metopic suture: separates the two halves of the frontal bone
- Coronal suture: separates the frontal bone from the parietal bones
- Sphenofrontal suture: separates the frontal bone from the sphenoid bone
Foramens and Articulations
- Foramen cecum: a small opening located at the junction of the frontal and nasal bones
- Frontal notch: a notch located on the inferior surface of the frontal bone, which articulates with the nasal bone
- Zygomaticofrontal suture: separates the frontal bone from the zygomatic bone
Frontal Bone
Frontal Sinus
- Located within the frontal bone, two separate cavities on either side of the midline
- Functions include reducing skull weight, warming and humidifying inspired air, adding resonance to the voice, and providing mucous drainage
Supraorbital Ridge
- Bony prominence above the orbit (eye socket), forming the upper margin of the orbit
- Contains the supraorbital notch (or foramen), transmitting the supraorbital nerve and vessels
Glabella
- Smooth, flat area between the supraorbital ridges, most anterior point of the frontal bone
- Used as a landmark for measuring skull size and shape
Cranial Sutures
- Frontal bone articulates with adjacent bones through:
- Metopic suture: separates the two halves of the frontal bone
- Coronal suture: separates the frontal bone from the parietal bones
- Sphenofrontal suture: separates the frontal bone from the sphenoid bone
Foramens and Articulations
- Foramen cecum: small opening at the junction of the frontal and nasal bones
- Frontal notch: inferior surface notch articulating with the nasal bone
- Zygomaticofrontal suture: separates the frontal bone from the zygomatic bone
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Learn about the structure and functions of the frontal bone, including the frontal sinus and supraorbital ridge.
