Bones of the Skull Flashcards by Elizabeth Holloway

Forehead and eyebrow area of neurocranium

Frontal bone

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Suture between frontal and parietal bones

Coronal suture

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Side, top and back of neurocranium

Parietal bone

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Suture between right and left parietal bones

Saggital suture

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Back underside of neurocranium

Occipital bone

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Suture between parietal and occipital bones

Lambdoid suture

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Opening in occipital bone that surrounds the spinal cord and nerves

Foramen magnum

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Where the skull articulates with the C-1 vertebrae

Occipital condyle

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Passageway of the glossopharyngeal nerve (CN IX) in the occipital bone

Jugular foramen

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Passageway of the hypoglossal nerve (CN XII) in the occipital bone

Hypoglossal foramen

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Bones on the side of the neuorcranium. They are part of the cheek bones and TMJ.

Temporal bones

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Bone of the cheek in front of the ear where the masseter muscle attaches

Zygomatic Process

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Ear canal

External auditory meatus

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Behind/below ear where the sternocleoidomastoid muscle attaches

Mastoid process

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Area between the squamous parts of the temporal bones and the parietal bones

Squamosal suture

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Saucer-like depression deep to the “cheek bone” comprised of the squamous part of the temporal bone, the greater wing of the sphenoid, and part of the adjacent frontal and parietal bones.

Temporal fossa

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Where the temporalis muscle attaches

Temporal fossa

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Where the facial nerve (CN VII) passes through the temporal bone

Stylomastoid foramen

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The internal auditory meatus is found in this area

Petrous part of the temporal bone

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Attachment of the stylomandibular ligament, just behind and medial to the mandibular fossa

Styloid bone

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Bump in front of the the articular fossa

Articular eminence

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Bone that is part of the cheek bone and bottom of eye socket

Zygomatic bone

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The zygomatic bone is continuous with the zygomatic process of the temporal bones and the maxillae to form the these

Zygomatic arches

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Bone of the skull that forms the front floor of inside the brain case in the midline

Ethmoid bone

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Area of the ethmoid bone that is surrounded by the cribriform plate

Crista galli

This surrounds the crista galli of the ethmoid bone

Cribriform plate

The balloon like, sinus filled part forming part of the the medial surfaces of the eye sockets

Ethmoid bone

An inferior plate of bone that forms part of the nasal septum

Ethmoid bone

A midline bone in the nose that along with cartilage forms a plate like projection of the Ethmoid bone

Vomer

Part of the nasal septum that seperates the right and left halves of the nasal passageway

Vomer

Wedge of bone that forms part of the under surface of the brain case in front of the occipital bone.

Sphenoid bone

Part of the sphenoid bone that forms part of the shallow temporal fossa. It is the attachment of the temporalis muscle.

Greater wing`

Part of the sphenoid bone that projects downward behind the posterior maxilla

Pterygoid process

Part of the sphenoid bone that is the attachment area of the lateral pterygoid muscle

Lateral pterygoid plate

Area between the petrygoid process and posterior maxilla

Pterygopalatine space

Area of the pterygoid process that bounds the pterygoid fossa

Medial and lateral pterygoid plates

This can be found on the sphenoid behind the palate

Pterygoid hamulus

Passageway for the mandibular part of the Trigeminal nerve (CN V) from the brain to lower teeth. Located on the sphenoid bone.

Foramen ovale

Area just behind the foramen ovale and spinosum. Attachment of the sphenomandibular ligament.

Angular spine

Passageway for the maxillary part of the trigeminal bnerve (CN V) into maxilla and upper teeth. Located on the sphenoid bone

Foramen rotundum

Passageway of the ophthalmic part of the trigeminal nerve (CN V) to the eye socket

Superior orbital fissure

Upper jaw bone

Maxillae

Process of the maxillae that surrounds the teeth

Alveolar process

Process of the maxillae that extends to the zygomatic bone and forms part of the bottom of the eye socket

Zygomatic process

Process of the maxillae that extends along the side of the nose to the frontal bone

Nasofrontal process

Process of the maxillae that forms most of the hard palate

Palatine process

Passageway of the maxillary part of the trigeminal nerve to the upper lip and surrounding tissue. Found in the maxillae bone

Infraorbital foramen

Hidden hollow center that has openings into the nasal passageways

Maxillary sinus

Passageway of the maxillary part of the trigeminal nerve (CN V) to the molars. Found on the maxillae.

Alveolar canal openings

Layer of dense bone that lines the tooth socket or alveolus

Lamina dura

Layer of dense bone lining the outer surface of the maxillae

Cortical bone

Type of bone that is sandwiched between lamina dura and cortical plate layers

Trabecular bone

Suture found between the left and right palatine processes

Intermaxillary suture

Suture between the palatine bones and the palatine process of the maxillae

Transverse palatine suture

Passageway of the maxillary part of the trigeminal nerve (CN V) to the anterior plate. On the maxillae

Incisive foramen

Lower jaw bone

Mandible

Process of the mandible that surrounds the teeth

Alveolar process

Part of the mandible that projects to articulate with the temporal bone at the TMJ

Rami

Mid-line suture of the mandible that may be visible on young mandibles

Mandibular symphysis

The passageway of the mandibular part of the trigeminal nerve (CN V) found on the mandible

Mental foramen

Area on the mandible that is lateral to the molars

Buccal shelf

Ridge on the mandible that separates the buccal shelf from the external surface of the ramus and is continuous with the anterior border of the coronoid process of the ramus

External oblique ridge

Part of the ramus that articulates with the temporal bone in the articular fossa

Condyloid process

This is the area between the condyloid and coronoid processes

Sigmoid notch

Two areas on either side of the mental protuberance

Mental tubercles

Area medial to and above mental tubercles

Mental protuberance

A slight projection, sometimes two (superior and inferior), in the middle line of the posterior surface of the body of the mandible.

Genial tubercles

This separates the sublingual from the submandibular fossae

Mylohyoid ridge

Area of the mandible where the tongue sits

Sublingual fossa

Attachment location of the mandible for the chewing muscles

Angle of the mandible

Area of the mandible where the temporalis muscle attaches. It is almost continuous with the mylohyoid ridge

Temporal crest

Inferior part of the temporal crest

Internal oblique line

The opening into the mandibular canal on the medial surface of the ramus of the mandible giving passage to the inferior alveolar nerve, artery, and vein.

Mandibular foramen

A pointed tongue of bone overlapping the mandibular foramen

Mandibular lingula

A groove on the medial surface of the ramus of the mandible beginning at the lingula

Mylohyoid groove

Bone that forms the bony ridge of the nose along with the nasofrontal processes of the maxillae

Nasal bone

Bone under the tear forming glands at the medial corners of the eye sockets.

Lacrimal bones

Scroll shaped bones on the lateral surfaces of the nasal passages

Inferior nasal chonchae

Small bone that is supported in the neck between groups of supra and infra hyoid muscles that help move or stabilize the mandible

Hyoid bone

What space does the maxillry nerve pass through immediately after exiting the foramen rotundum?

Pterygoplatine space

What bony process of the maxilla surrounds tooth roots?

Alveolar process

Which teeth are most likely to have their roots in proximity with the maxillary sinus?

Maxillary molars and premolars