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What bones form the Calvarium (skullcap)
What bones form the Floor
2 main parts of the Frontal bone
Frontal Bone - Squamous Portion
Glabella
Frontal Bone - Squamous Portion
Supraorbital Groove (SOG)
Frontal Bone - Squamous Portion
Superciliary Ridge/Arch
Frontal Bone - Squamous Portion
Supraorbital Margin (SOM)
Frontal Bone - Squamous Portion
Supraorbital notch (Foramen)
Frontal Bone - Squamous Portion
Frontal Tuberosity (eminence)
Frontal Bone - Orbital Portion consists of...
Frontal Bone - Orbital Portion
Orbital plate
Frontal Bone - Orbital Portion
Ethmoid notch
Which 4 bones articulate with the frontal bone?
What do the parietal bones form?
Widest part of skull is between these...
What bones articulate with the parietal bone?
What does the occipital bone form?
Describe the squamous portion of the occipital bone
What is the external occipital protuberance or inion?
*Foramen Magnum
*What does the occipital condyles articulate with?
Which 6 bones articulate with the occipital bone?
What do the temporal bones house?
Where is the zygomatic process/arch on the temporal bone?
Where is the EAM?
Temporomandibular fossa
Styloid process
Name the 3 parts of the temporal bones
The squamous portion of temporal bone is the ____ portion of the skull
The mastoid portion of the temporal bone is posterior to ___.
Has a prominent mastoid process/tip and contains ___ ____.
The petrous portion (petrous pyramid) is the ____ portion of the skull.
What does the petrous portion house?
Petrous ridges
What does the Internal Acoustic Meatus do?
Which 3 bones articulate with the temporal bones?
Where is the sphenoid bone located and how many cranial bones articulate with it?
The sphenoid bone is ___-shaped bone containing:
Describe the body of the sphenoid bone
* Describe the Sella turcica
Where is the Dorsum sellae
Where is the clivus located and what does it do?
Clinoid processes
2 anterior - arise from ____ aspect of ___ wing.
2 posterior - extends superiorly from the ___ ___.
Name the 3 small foramina in the greater wing of the spenoid bone.
What's the purpose of them?
Optic Foramina
Superior Orbital Fissure
Name the 3 processes projecting downward from the body on the sphenoid bone
Where is the ethmoid bone located?
Cribriform plate
Ethmoid Bone
Crista galli
Ethmoid Bone
Perpendicular Plate
Ethmoid Bone
Lateral masses or labyrinths
Ethmoid Bone
Superior and middle nasal conchae or turbinates
Which bones articulate with the ethmoid bone?
What are cranial sutures?
Name the 4 types of sutures
Coronal suture
Sagittal suture
Lambdoidal suture
Squamosal suture
Name the 4 suture junction points
Bregma
Lambda
Pterions
Asterions
Infant cranial sutures and fontanels
Organs of hearing and equilibrium found within ___ portion of temporal bones.
Name the 3 divisions of the ear.
External ear
Middle ear
Middle ear
Eustachian tube
Mastoid Air Cells
Middle ear
Auditory Ossicles
Middle ear
Name the 3 Auditory Ossicles
What does the internal ear contain and name the 2 main parts.
Osseous labyrinth
