Quiz 5
1. The perpendicular plate of the __________________ bone helps form the nasal septum.
a. MAXILLA
- One of the eight sets of paired bones in the skull
- Forms the upper jaw
b. PALATINE
- One of the eight sets of paired bones in the skull
- Forms part of the floor and lateral wall of posterior nasal cavity
o Perpendicular plate (the vertical part): includes the pterygopalatine canal which
transmits the greater palatine nerves and vessels
o Horizontal plate: includes the pyramidal process
c. ETHMOID
- One of the six unpaired bones of the skull
- Forms medial wall of orbit and lateral wall of nasal cavity
d. VOMER
- One of the six unpaired bones of the skull
- Forms the posterior and inferior part of the nasal septum
2. Which of the following nerves supplies the hard palate?
a. NASOPALATINE
- From the pterygopalatine ganglion
- Supplies the nasal septum as it passes toward the incisive canal
- Passes through the Sphenoplalatine foramen
- Crosses the roof of the nasal cavity to reach the nasal septum
b. GREATER PALATINE
- From the pterygopalatine ganglion
- Supplies the mucosa of the Hard palate and gums
c. SPHENOPALATINE
- An artery: branch of the maxillary artery
- Supplies the septum and lateral walls of the nasal cavity
- Passes through the sphenopalatine foramen
d. LESSER PALATINE
- From the pterygopalatine ganglion
- Supplies the soft palate and tonsile
3. The frontal and maxillary sinuses drain into the ___________________.
a. SPHENO-ETHMOIDAL RECESS
- Above and behind the superior meatus
- Sphenoid sinus drains into here
b. SUPERIOR MEATUS
- Underneath of the superior concha
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c. MIDDLE MEATUS
Underneath of the middle concha
Frontal sinus drains here through the frontonasal duct
Maxillary sinus drains here in the hiatus semilunaris
The middle meatus includes
o Ethmoidal bulla
o Hiatus semilunaris: a curved slit below the ethmoid bulla
o Uncinate process: a ridge below the hiatus semilunaris
o Ethmoidal infundibulum: a passage that runs up and forward from the hiatus
semilunaris and receives the opening of the frontal sinus
d. INFERIOR MEATUS
Underneath of the inferior concha
The inferior concha is a separate bone
Nasolacrimal duct from the lacrimal sac terminates here
4. The pterygopalatine ganglia receives preganglionic parasympathetic nerves via the
____________.
I didn’t see much information on the lesser petrosal nerve or the chorda tympani on the
handouts from the nasal cavity.
a. GREATER PETROSAL NERVE
- A branch of the Facial (VII) nerve
- Carries preganglionic parasympathetic fibers to the pterygopalatine ganglion
- Travel through the pterygoid canal
b. CHORDA TYMPANI
c. LESSER PETROSAL NERVE
d. DEEP PETROSAL NERVE
- Carries postganglionic sympathetic fibers from pterygopalatine ganglion
5. The Vidian nerve has postganglionic sympathetic fibers contributed by the ______________.
I didn’t see much information on the lesser petrosal nerve or the chorda tympani on the
handouts from the nasal cavity.
a. GREATER PETROSAL NERVE
- A branch of the Facial (VII) nerve
- Carries preganglionic parasympathetic fibers to the pterygopalatine ganglion
- Travel through the pterygoid canal
b. CHORDA TYMPANI
c. LESSER PETROSAL NERVE
d. DEEP PETROSAL NERVE
- Carries postganglionic sympathetic fibers from pterygopalatine ganglion
6. Which of the following has the pterygoid plates as part of its architecture?
a. PARIETAL
- Each parietal bone is separated by the Sagittal suture
b. SPHENOID
- Consists of Body, Greater Wings, Lesser Wings, and Pterygoid process
- Body
o Optic (chiasmatic) groove: for the optic chiasm
o Optic canals (foramen): transmit the optic nerves
o Anterior clinoid processes
o Tuberculum Sellae: posterior to the chiasmatic groove
o Sella Turcica (Turkish saddle): deep depression behind the tuberculum sellae
 Hypophyseal fossa: deepest part, holds the pituitary
 Dorsum sellae: posterior boundary
 Posterior clinoid processes
- Greater wings include
o Foramen ovale: posterior to lateral pterygoid plate
o Foramen spinosum: posterolateral to foramen ovale
- Pterygoid processes: extend down from junction of the body and greater wing of sphenoid
bone and separates into two plates
o Lateral pterygoid plate
o Medial pterygoid plate: includes an inferior projection that forms the Pterygoid
Hamulus for the tendon of the tensor veli palatine
- Lesser Wings: behind the orbital plates of the frontal bone
c. TEMPORAL
- Mandibular fossa articulates with the head of the condylar process
- Articular tubercle: the anterior part of the mandibular fossa
- Includes the Styloid process and the Mastoid process
- Stylomastoid foramen: between styloid and mastoid process and transmits CN VII
- Petrous part includes:
o Jugular foramen: transmits CN IX, X, XI, and internal jugular vein
o Carotid canal: transmits internal carotid artery and sympathetic nerve plexus
o Foramen lacerum
o Arcuate Eminence: a rounded elevation caused by the projection of the superior
semicircular canal
o Hiatus and canal for the greater petrosal nerve: branch of the nervus intermedius
(with CN VII) carrying preganglionic parasympathetic fibers to the pterygoid (Vidian)
canal
o Hiatus and canal for the lesser petrosal nerve: carrying preganglionic
parasympathetic nerve fibers (with CN IX)
o Internal Auditory Meatus: transmits CN VII, VIII, and nervus intermedius
d. ZYGOMATIC
- Forms part of the zygomatic arch
7. The maxillary nerve passes through the ___________________.
a. FORAMEN ROTUNDUM
- Passage for the maxillary nerve (V2)
- Immediately below the medial end of the superior orbital fissure
b. FORAMEN OVALE
- Passage for the mandibular nerve (V3) and accessory meningeal artery
- Posterior to lateral pterygoid plate and posterior to the foramen rotundum
c. INCISIVE FORAMEN
- Passage for the Nasopalatine nerve and Sphenopalatine vessels
- Is composed of the 2 Incisive Canals
d. SUPERIOR ORBITAL FISSURE
- Passage for Cranial nerves III, IV, VI, and branches of ophthalmic nerve (V1), and the
superior ophthalmic vein
- Between lesser and greater wings of the sphenoid bone
8. The ophthalmic division of the trigeminal nerve passes through the ____________.
a. FORAMEN ROTUNDUM
- Passage for the maxillary nerve (V2)
- Immediately below the medial end of the superior orbital fissure
b. FORAMEN OVALE
- Passage for the mandibular nerve (V3) and accessory meningeal artery
- Posterior to lateral pterygoid plate and posterior to the foramen rotundum
c. INCISIVE FORAMEN
- Passage for the Nasopalatine nerve and Sphenopalatine vessels
- Is composed of the 2 Incisive Canals
d. SUPERIOR ORBITAL FISSURE
- Passage for Cranial nerves III, IV, VI, and branches of ophthalmic nerve (V1), and the
superior ophthalmic vein
- Between lesser and greater wings of the sphenoid bone
9. The _______________ is a passageway for vessels and nerves to pass across the hard palate
between the nasal and oral cavities.
a. FORAMEN ROTUNDUM
- Passage for the maxillary nerve (V2)
- Immediately below the medial end of the superior orbital fissure
b. FORAMEN OVALE
- Passage for the mandibular nerve (V3) and accessory meningeal artery
- Posterior to lateral pterygoid plate and posterior to the foramen rotundum
c. INCISIVE FORAMEN
- Passage for the Nasopalatine nerve and Sphenopalatine vessels
- Is composed of the 2 Incisive Canals
d. SUPERIOR ORBITAL FISSURE
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Passage for Cranial nerves III, IV, VI, and branches of ophthalmic nerve (V1), and the
superior ophthalmic vein
Between lesser and greater wings of the sphenoid bone
10. The part of the mandible having the articular process is the _____________________.
a. CONDYLAR PROCESS
- Posterior to the mandibular notch
- Head: articulates in the mandibular fossa of the temporal bone
- Neck: the area just below the head
b. ANGLE
- The junction of the ramus (posterior) and body (inferior) of the mandible
c. LINGULA
- On the internal surface it is the spine at the mandibular foramen for the sphenomandibular
ligament attachment
d. CORONOID PROCESS
- The process anterior to the mandibular notch