Skull anatomy

Frontal Bone

the large cranial bone forming the front part of the cranium: the forehead and the upper part of the orbits

Parietal Bone

either of two skull bones between the frontal and occipital bones and forming the top and sides of the cranium

Sagital Suture

Located on the midline of the skull lies between both parietal bones (immovable joint)

Coronal Suture

the suture between the parietal and frontal bones of the skull

Lambdoidal Suture

suture that separates parietal bones from occipital bone

Squamosal Suture

between parietal bone and temporal bone on side of the skull, bordered in back by occipital bone

Optic Foramen

On either side ochiasmatic groove -transmits optic nerve (CN II) along with its meningeal coverings, and the ophthalmic artery

Sella turcica

depression in the sphenoid bone where the pituitary gland is located

Temporal Bone

bone that forms parts of the side of the skull and floor of the cranial activity.

Mastoid Process

projection of the temporal bone located behind the ear

Styloid

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

External Auditory Meatus

hole in the temporal bone extending medially to the inner ear

Jugular Foramen

hole at the back/base of the skull.

Carotid Foramen

opening for carotid artery

Mandibular fossa

depressions where manidble and cranium meet and join

Temporomandibular joint (TMJ)

the joint between the head of the lower jawbone and the temporal bone

Occipital Bone

a saucer-shaped membrane bone that forms the back of the skull

Foramen Magnum

the large opening at the base of the cranium through which the spinal cord passes

Occipital Condyle

ridges on left and right of foramen magnum

Middle nasal Concha

Curved bone inside the nasal cavity.

Crista Galli

vertical projection providing a point of attachment for the dura mater, helping to secure the brain within the skull

Cribiform plate

part of ethmoid bone, at the roof of the nasal cavity

• Shape: Thin, flat plate with many tiny holes

Maxilla

Forms most of the upper jaw, and part of the hard palate, contains upper molars, premolars, and canines

Palatine Process

forms the anterior portion of the hard palate (roof) of the mouth also forms parts of the nasal cavity and eye orbits

Alveolar Process

a ridge that forms the borders of the upper and lower jaws and contains the sockets of the teeth

Lacrimal Bone

small fragile bone making up part of the front inner walls of each eye socket

Lacrimal Fossa

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

Nasal Bone

an elongated rectangular bone that forms the bridge of the nose

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

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

thin trapezoidal bone of the skull forming the posterior and inferior parts of the nasal septum (the lower portion of the nasal septum)

Zygomatic Bone

the arch of bone beneath the eye that forms the prominence of the cheek

Mandible

the lower jawbone in vertebrates

Condylar Process

the condyle of the ramus of the mandible that articulates with the skull

Aveolar Process

bone surronding the teeth

Hyoid Bone

bone that is suspended in the mid neck region and provides a moveable base for the tongue

Frontal

Maxilla

Mandible

Sphenoid

Butterfly-shaped bone in the middle of the skull.

Zygomatic

Temporal

Occipital

Sphenoid

Parietal

Nasal Bone

Coronal Suture

Squamous suture

Lambdoid suture

Sagittal suture

Mastoid Process

Bony bump behind the ear.

Styloid Process

External Acoustic Meatus

Mandibular Condyle

rounded projection at the top of the mandible that forms the TMJ with the temporal bone.

Mental Foramen

Ethmoid

Sphenoid

Lacrimal

tears → it’s the little bone by your eye associated with tear drainage.

Vomer

Middle Nasal Conchae

Inferior Nasal Conchae

Foramen Magnum

Palatine

Sphenoid

Zygomatic Process

Temporal Process

Part of the zygomatic bone that extends back toward the temporal bone.

Frontal Bone

the large cranial bone forming the front part of the cranium: the forehead and the upper part of the orbits

Parietal Bone

either of two skull bones between the frontal and occipital bones and forming the top and sides of the cranium

Temporal Bone

Occipital Bone

a saucer-shaped membrane bone that forms the back of the skull

Maxilla

Forms most of the upper jaw, and part of the hard palate, contains upper molars, premolars, and canines

Lacrimal

small fragile bone making up part of the front inner walls of each eye socket

Nasal Bone

an elongated rectangular bone that forms the bridge of the nose

Palatine

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

Zygomatic Bone

the arch of bone beneath the eye that forms the prominence of the cheek

Mandible

the lower jawbone in vertebrates

Sphenoid

Base and sides of skull; part of the eye orbits.

Ethmoid

Internal base of skull; structures in nasal cavity.

Frontal bone

Coronal suture

Infraorbital foramen

Mental foramen

Optic foramen

Parietal bone

Squamous suture

Temporal bone

Vomer

Nasal bone

Supraorbital foramen

Supraorbital foramen

holes above the eye socket

Inferior nasal conchae

Alveolar process

Maxilla

Condylar process

Rounded bump at the back/top of the mandible (jaw)

Mandibular angle

Mandibular notch

Zygomatic process of temporal bone

Zygomatic bone

Frontal Bone

Maxilla Bone