Anatomy and Physiology Skull Bones

Frontal Bone (unpaired)

forehead

incisive foramen

articular eminence

Superior Orbital Fissure

sphenoid

Optic Canal

optic nerve

inferior orbital fissure

fissure in the orbit floor between maxilla and greater wing of sphenoid

Middle Nasal Concha

the middle thin, spongy, bony plate with curved margins, part of the ethmoidal labyrinth, projecting from the lateral wall of the nasal cavity and separating the superior meatus from the middle meatus;

Perpendicular Plate

forms superior part of nasal septum

Inferior Nasal Concha

located on each side of the nasal septum, attached to the lateral wall of the nasal cavity; increase epithelial surface area and create turbulence in the inspired air

Vomer (unpaired)

nasal septum

parietal bone (paired)

a bone forming the central side and upper back part of each side of the skull.

Sphenoid Bone (unpaired)

forms part of the base of the skull and parts of the floor and sides of the orbit

Temporal Bone (paired)

bone that forms parts of the side of the skull and floor of the cranial activity. There is a right and left temporal bone.

Ethmoid Bone (unpaired)

Light spongy bone between the eye sockets; forms part of the nasal cavities.

Lacrimal Bone (paired)

small fragile bone making up part of the front inner walls of each eye socket and providing room for the passage of the lacrimal ducts

Zygomatic Bone (paired)

cheek bone

Maxilla (paired)

upper jaw

Mandible (unpaired)

lower jaw

Mental Foramen

opening in the mandible for passage of chin artery/nerve

Sagittal Suture

between the two parietal bones

Sutural Bone

tiny bones between cranial bones

Lambdoid Suture

between parietal bones and occipital bone

Occipital Bone (unpaired)

back of head

Occipital Condyle

ridges on left and right of foramen magnum

Mastoid process of temporal bone

round projection on the temporal bone behind the ear

Coronal Suture

the suture between the parietal and frontal bones of the skull

Lacrimal Fossa

Anterior and lateral depression of roof of orbit which accommodates the lacrimal gland

Coronoid process

"crown-shaped" insertion point for the large temporalis muscle that elevates the lower jaw during chewing

coronoid notch

mandibular notch

Lingula

mylohyoid line

retromolar triangle

Mandibular angle

the posterior, inferior corner of the lower jaw

sublingual fossa

submandibular fossa

Mastoid process

round projection on the temporal bone behind the ear

external oblique line

Styloid process

pole-like process extending downward from the temporal bone on each side of the skull

external occipital protuberances

maxillary tuberosity

External acoustic meatus

ear canal

Zygomatic process

cheek bone

Lambdoid suture

between parietal bones and occipital bone

greater palatine foramen

Squamous Suture

Between parietal and temporal bones

Sphenoid bone (greater wing)

flag-shaped bony areas, forms the middle cranial fossa, interior walls of the skull

Sphenoid bone (lesser wing)

hornlike, form the floor of the anterior cranial fossa, and medial walls of the orbits

Crista galli

Triangular process to which membranes that cover the brain attach. Means "rooster's comb".

Ethmoid Bone (perpendicular plate)

behind nasal bone and in front of sphenoidal sinuses

Palatine bone

either of two irregularly shaped bones that form the back of the hard palate and helps to form the nasal cavity and the floor of the orbits

Pterygoid process of sphenoid bone

The land mark on the sphenoid bone for the attachment of many muscles of mastication...

pterygomaxillary fissure

Sella turcica of sphenoid bone

houses the pituitary gland

Internal acoustic meatus

A passage for CN VIII from the inner ear to the brain.

Foramen Ovale

oval shaped

Foramen Spinosum

small foramen slightly posterior and lateral to foramen ovale

Foramen Lacerum

Jagged opening between the petrous temporal bone and the sphenoid bone

Carotid Canal

anterior to jugular foramen

Stylomastoid Foramen

posterior to external acoustic meatus, between styloid and mastoid processes

infratemporal fossa

Jugular Foramen

posterior to carotid canal

Foramen Magnum

hole at base of skull

Basilar part of occipital bone

region of the occipital bone anterior to foramen magnum

Mandibular Fossa

the depression in the temporal bone into which the condyle of the mandible fits

Maxilla (palatine process)

roof of the mouth

Cribriform Plate

small, flattened areas with numerous small openings, located to either side of the midline in the floor of the anterior cranial fossa; formed by the ethmoid bone

Anterior Cranial Fossa

supports the frontal lobes of the brain

Middle Cranial Fossa

holds the temporal lobes of the brain, lateral location

Posterior Cranial Fossa

contains the cerebellum

mandibular condyle

Hypoglossal Canal

superior and medial to condyles

superior nuchal line

inferior nuchal line

foramen rotundum

Cribriform Foramina

holes

orbit

eye holes

anterior fontanelle (soft)

bregma suture (hardened)

vault of the skull

stylomastoid foramen

Not studied (81)

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