ANATOMY OF HUMAN SKULL

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. There is a right and left temporal bone.

Mastoid Process;-

Projection of the temporal bone located behind the ear

Styloid Process;-

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:-

CN IX, X, XI, superior bulb of internal jugular, inferior petrosal and sigmoid sunuses, meningeal branches of ascending pharyngeal and occipital arteries pass through

Carotid Foramen;-

Opening for carotid artery

Madibular 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;-

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;

Crista Galli;-

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

Cribiform plate;-

Duperior surface of the ethmoid; perforated by a foramina which allows passage of the olfactory nerves, which provide sense of smell

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 and providing room for the passage of the lacrimal ducts

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 Bone;-

Forehead bone

Parietal Bone;-

Two bones between the frontal and occipital; on the side and top of the cranium

Occipital Bone;-

The bone found at the back and base of the skull

Temporal Bone;-

Bone near the ear; connected to the lower jaw

Sphenoid Bone;-

Butterfly-shaped bone at the base of the skull that extends behind the eyes and forms part of the base of the skull

Ethmoid Bone;-

Irregularly shaped bone that forms part of the orbital wall and the roof of the nasal cavity

Inferior Nasal Conchae;-

Paired, curved bones in the nasal cavity that form part of the lateral walls of the nasal cavity

Vomer Bone;-

Thin trapezoidal bone of the skull forming the posterior and inferior parts of the nasal septum

Nasal Bone;-

An elongated rectangular bone that forms the bridge of the nose

Maxilla Bone;-

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

Zygomatic Bone;-

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

Lacrimal Bone;-

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

Palatine Bone;-

The bone which forms part of the hard palate of the mouth, part of the nasal cavity, and part of the orbital cavities

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Source;- MDSMAFE

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