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How many Cranial Bones are there
8
What are the different bones in the CRANIAL region
Parietal (2)
Temporal (2)
Frontal (1)
Occipital (1)
Ethmoid (1)
Sphenoid (1)
Parietal
Temporal
Frontal
Occipital
Ethmoid
Sphenoid
Occipital Bone
Occipital Bone
Occipital Bone
Occipital Bone
External occipital protuberance
The bump on the posterior side.
External Occipital Protuberance
Occipital Condyle__s__
Articulate with the atlas
Foramen Magnum
Large hole for the spinal cord to pass through
Foramen Magnum
Occipital condyles
Occipital Condyles
Frontal Bone
Forehead
Frontal Bone
Frontal Bone
Supraorbital Margin
Ridge of bone above each eye
Supraorbital margin
Supraorbital Foramen
Hole above the supraorbital margin
Supraorbital Foramen
Supraorbital foramen
Right Parietal Bone
Left Parietal Bone
Left Parietal Bone
Right Parietal Bone
Parietal Bones
Form part of the sidewall and roof of the cranium
Coronal suture
Junction between frontal bone and 2 parietal bones
Coronal Suture
Coronal Suture
Sagittal Suture
Junction between 2 parietal bones
Sagittal Suture
Squamous Suture
Junction between temporal bone and parietal bones
Squamous Suture
Squamous suture
Lambdoidal suture
Junction between 2 parietal bones and the occipital bone
Lambdoidal Suture
Temporal Bones
Form part of the sidewall of cranium, the temple
Temporal Bone
External auditory meatus
Ear canal
Styloid Process
Elongated, pin-like process on inferior side
Mastoid process
Large bony mass inferior and posterior to ear
Mandibular fossa
Articulates with the mandibular condyles on mandible
Note this diagram should be annotated → The mandibular fossa in this picture is hidden, its underneath the condylar process
Mandibular Fossa
Zygomatic process
Projection of temporal bone
Sphenoid
Irregular bone on floor of cranium, looks like a "bat"
Sphenoid
Sphenoid
Sphenoid
Sphenoid
Sphenoid
Optic Foramen (Canal)
Hole for the optic nerve to pass through towards each eye
Optic Canal (Foreamen)
Sella Turcica
Saddle like structure on superior surface (pituitary gland sits here)
Sella Turcia
Greater and Lesser wings
Large and small wing like structures which help form the floor of the cranium
Greater Wing
Lesser Wing
Superior Orbital Fissures
Large slits which can be seen in the eye sockets, it is between the
greater and lesser wings
Superior Orbital Fissure
Superior Orbital Fissure
Inferior orbital fissure
Smaller slits, also seen in the eye sockets, just inferior to the
superior orbital fissures.
Inferior Orbital Fissure
Ethmoid
Irregular bone anterior to sphenoid and between eyes
Ethmoid
Ethmoid
Ethmoid
Ethmoid
Ethmoid
Ethmoid
Ethmoid
Ethmoid
Ethmoid
Ethmoid Bone Views
Ethmoid
Ethmoid
Crista galli
Bony projection on superior surface
Crista Galli
Cribriform plate
Horizontal plate on the superior surface that is perforated with
many small holes for the olfactory nerve
Crista Galli
Middle Nasal Concha
\n Not a named bone, but part of the ethmoid bone. Above inferior
nasal concha
Middle Nasal Concha
Middle Nasal Concha
Crista Galli
Superior Nasal Concha
\n Not a named bone, but part of the ethmoid bone. Above middle
nasal concha
Middle Nasal Concha
Perpendicular Plate
Inferior plate that divides the nasal cavity
Perpendicular Plate
Perpendicular Plate
Perpendicular Plate
Perpendicular Plate
Perpendicular Plate
Orbital Plate
Smooth plates which form the medial walls of the eye sockets
Orbital Plate
Note 
Flashcard (20)