main features/bony landmarks of the 8 cranial bones

Question 1

What are the main features/bony landmarks of the frontal bone

Answer 1

frontal sinuses that communicate with the nasal cavity

Question 2

What are the main features/bony landmarks of the parietal bones

Answer 2

grooves and protrusions to accommodate blood vessels supplying the dura mater

Question 3

What are the main features/bony landmarks of the temporal bones

Answer 3

-temporal squama
-Zygomatic process, designed to anchor muscles, ligaments, and tendons
-External auditory meatus, for hearing
-mandibular fossa produces articulation points for the mandible to form the TMJ
Styloid process and mandibular process act as points of attachment for muscles and ligaments

Question 4

What are the main features/bony landmarks of the occipital bone

Answer 4

Occipital condyles articulate with the first vertebra

Question 5

What are the main features/bony landmarks of the sphenoid bone

Answer 5

-Foramen ovale and foramen lacerum allow for blood vessels and nerves to pass
-Foramen rotundum

Question 6

What are the main features/bony landmarks of the ethmoid bone

Answer 6

• Crista galli serves as a point of attachment for the membrane that divides the hemispheres of the brain
• Cribiform plate holds the olfactory foramina for a sense of smell