Head & neck anatomy

Question Answer
Articulation Skeletal area where bones join together.
Suture The union of bones with fibrous tissue.
How many bones are in the Neurocranium and what are they? 8; Frontal, Parietal (2), Temporal (2), Occipital, Sphenoid, and Ethmoid.
Coronal Suture Consists of the union of the frontal and parietal bones.
Sagittal Suture Union of the two parietal bones.
Lambdoidal Suture Union of the parietal bones and the occipital bone.
Squamous Suture Union of the parietal and temporal bones.
How many bones are in the viscerocranium and what are they? 14 bones; Mandible, Vomer, lacrimal (2), nasal (2), palatine (2), maxilla (2), zygoma (2), inferior nasal conchae (2)
Temporozygomatic suture Union of the zygomatic and temporal bones.
Median Palatine Union of the two palatine bones.
Transverse Palatine Maxilla (Palatine processes of the maxilla) and Palatine bones
Intermaxillary Suture Union of the two maxillary bones (Palatine processes of the maxilla).
The orbit is comprised of…. Frontal, ethmoid and lacrimal bones, zygomatic and sphenoid bones, maxilla and sphenoid.
Where is the Frontal bone located in the Orbit? Located on the superior wall.
Where are the Ethmoid and Lacrimal bones located in the Orbit? Located in the medial wall.
Where are the Zygomatic and Sphenoid bones located in the Orbit? Located on the lateral wall.
Where is the Maxilla located in the orbit? Located in the inferior wall (floor)
Where is the Sphenoid located in the orbit? Located on the base at the apex of the orbit.
Where is the superior orbital fissure located and what structures pass through it? It is located between the greater and lesser wings of the Sphenoid. Cranial nerves III, IV, V1, VI and the ophthalmic vein pass through it.
Where is the inferior orbital fissure located and what structure pass through it? It is located between the greater wing of the Sphenoid and the maxillae. Branches of V2 ( infraorbital and zygomatic nerves), infraorbital artery and inferior ophthalmic vein pass through it.
Where is the optic canal located and what structures pass through it? It is located within the lesser wing of the Sphenoid. The optic nerve, cranial nerve II and the ophthalmic artery pass through the optic canal.
Where is the infraorbital foramen located and what does it transmit? It is located inferior of the orbit. It transmits the infraorbital nerve and direct continuation of V2.
What is piriform aparture and what is it bonded by? It is a bony rim of the nasal cavity. It is bounded by nasal bones superiorly and maxillae create lateral and inferior walls.
What is the Nasal Septum composed of? Ethmoid: anterior and superior
Vomer: posterior and inferior
nasal septum cartilage.
Which nasal conchae is visible from the anterior? Middle and inferior conchae.
Which nasal conchae are projections of the ethmoid? Superior and middle nasal conchae.
Which pair of nasal conchae are individual bones? The inferior conchae.
The temporal bone touches or articulates with which other bones? The Parietal, occipital and the Sphenoid bones.
What's the styloid process and where is it located? It is a slender projection and it's inferior to the external auditory meatus.
Asterion It's strong and is where the occipital, parietal and temporal bone meet.
Pterion It's weak and it is the union of 4 bones; frontal, temporal, parietal and Sphenoid bones.
What suture joins the zygomatic and the temporal bone? The temporozygomatic Suture.
What is temporal fossa? A slight concave depression; larger than pterion.
How many and which bones form the hard palate? 4 bones; 2 Palatine processes of the maxilla and 2 Palatine bones.
What suture divides the Palatine bones? Median Palatine
The intermaxillary Suture is the union of which bones? Maxillary bones (Palatine processes of maxilla) (2)
Transverse Palatine Union of maxillary bones (Palatine processes of the maxilla) and Palatine bones.
Where is the incisive foramen located and what nerve does it transmit? It is located on the midline, anterior palate behind incisors #8 and #9. It transmits the nasopalatine nerve.
Where is the greater Palatine foramen located and what nerve does it transmit? It is located posteriolateral area of palate and it transmits the greater Palatine nerve.
Where is the lesser Palatine foramen located and what nerve does it transmit? It is located posteriolateral of the greater palatine foramen and it transmits the lesser palatine nerve.
What is the pterygoid process and what function does it have? It is a large, inferior projection and it attaches big muscles.
Pterygoid Fossa depression between the plates.
What is the most inferior extension of the medial pterygoid plate? Hamulus
Which pterygoid plate is larger, the medial or the lateral pterygoid plate? Lateral pterygoid plate.
The spinal cord passes through what skull bone? Occipital bone
Through what foramen does the spinal cord pass through? Foramen Magnum
What is mandibular fossa and what is another name for it? It is a large depression and it is also known as glenoid fossa.
How does the crista galli look like and what is it? It looks like a cockscomb and it is the attachment site for tissues.
What nerve does the cribiform plate transmit? It transmits fibers of cranial nerve I.
The pituitary gland is housed by the… Sella turcica
Where are the greater wings of the sphenoid located? On the base of the sphenoid bone.
Where are the lesser wings of the sphenoid located? Superior to the greater wings of the sphenoid.
What does the foramen ovale transmit? V3
V2 is transmitted by what foramen? Foramen rotundum
What structures pass through the optic canal? Optic nerve, cranial nerve II and ophthalmic artery.
On what bone are the foramen ovale and the foramen rotundum located? Sphenoid bone
The foramen lacerum is located on which bones and what is it filled with? On the sphenoid and temporal bones and it's filled with cartilage.
The foramen lacerum is next to what canal? Carotid Canal
Where is the carotid canal located and what passes through it? It's located on the temporal bone, posteriolateral to the ovale and the internal carotid arteries pass through it.
On what bone is the stylomastoid foramen located in and what does it transmit? On the temporal bone and the cranial nerve VII is transmitted.
The jugular foramen is located between what bones and what structures pass through it? It is located between the occipital & temporal bones and the internal jugular vein and cranial nerves IX, X and XI pass through it.
What nerve passes through the Hyoglossal canal? Cranial nerve XII
What foramen do the spinal cord, vertebral arteries and cranial nerve XI pass through? Foramen Magnum
Where is the frontal sinus located? Superior and medial to orbits.
What cells does the ethmoid sinus have? Irregular cells
Where is the sphenoid sinus located? Posterior to the eye and superior to nasal cavity.
Which sinus is mostly infected and can cause the apex of the maxillary teeth to hurt? The maxillary sinus.
What bones does the maxillae articulates with? nasal bones, zygomatic, frontal, lacrimal, Sphenoid, ethmoid, inferior nasal conchae, vomer, and Palatine.
How many processes does the maxillae have and what are they? 4 processes; zygomatic, frontal, Palatine, and alveolar.
Which is the only movable bone of the skull? Mandible
What is the mental protuberance? The chin.
Where is the lingual foramen located? It's located behind of the central incisors #24 & #25.
What is the digastric fossa and where is it located? A shallow depression and it's located inferior of the lingual foramen.
What two fosas does the mylohyoid line separate? Sublingual fossa (anterior and superiors the mylohyoid line) and submandibular fossa (posterior and inferior the mylohyoid line).
Where is the retromolar triangle located? Behind the mandibular third molars.
What is the lingula, where is it located and what ligament does it have? It is a small point projection and it is just anterior the mandibular foramen. It has the sphenomandibular ligament.
Which process on the ramus of the mandible have a triangle projection and it's function is muscle attachment? Coronoid process
Where is the coronoid notch located? On the anterior surface of the ramus.
What is the condyle process? The most posterior portion of the mandible and it articulates with the mandibular fossa to form the TMJ.
What is another name for mandibular notch and where is it located? It is also known as sigmoid notch and it is between the condyle and coronoid process.
What bone has the nickname "floating bone" and where is it located? The hyoid bone and it's inferior the mandible.
What articulates with the spine and are located anteriolateral of the foramen magnum? The Occipital Condyles
What is Atlas? 1st cervical vertebrae.
What is the mastoid process, where is it located and what muscle is attached to it? A projection of the temporal bone, it is posterior of the external auditory meatus and the superior part of the sternocleidomastoid muscle is attached to it.
What is the external auditory meatus? The Ear
The prominence of the cheek is called? Zygoma
What bones articulate with the zygoma? Frontal, maxillary, Sphenoid and temporal bones.
What passes through the foramen spinosum? Meningeal artery

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