the cranial bones
functions of cranial bones
1. protect the brain 2. provide attachment site for the jaw, head and neck muscles. 3. form the top, sides, and back of head
frontal bone
bone that forms the roof of the nasal cavity, orbits, and forehead
cribiform olfactory foramen
bony feature of the ethmoid bone which allows passage ways for the olfactory nerve (CN 1)
perpendicular plate
bony feature of the ethmoid bone which forms the nasal septum
cribiform plate
bony feature of the ethmoid bone which provides a roof over the smell receptors
cristal gali
bony feature of the ethmoid bone which serves as an attachment site for the dura mater
frontal sinus
bony feature of the frontal bone consisting of two air filled sacs
occipital condyle
bony feature of the occipital bone an area of the skull which articulates with the C1 vertebrae (or atlas bone)
occipital protuberance
bony feature of the occipital bone which acts as an attachment site for muscles
foramen magnum
bony feature of the occipital bone which allows passage for the spinal cord.
zygomatic process
bony feature of the temporal bones which consists of a anterolateral projection that unites with the zygomatic bone to form the zygomatic arch.
mastoid process
bony feature of the temporal bones which contain air spaces and muscular attachment sites
ethmoid bone
cranial bone which forms the anteromedial floor of the cranium, roof of the nasal cavity, medial all of each orbit, and superior nasal septum. square in shape and sits between the eyes.
sphenoid bone
cranial bone which resembles a butterfly, not easily visible from the outside of the skull. it articulates with almost all the bones of the skull and unites the cranial and facial bones.
external acoustic meatus
opening in the temporal bone which makes up part of the outer ear
parietal bones
paired bones which form the sides of the top of the skull.
temporal bones
paired bones which make up the lateral sides of the cranium
occipital bone
the occipital bone forms the posterior skull and portion of the cranium base