TRIGEMINAL NERVE

Question 1

Roots that originates from the pons

Answer 1

Large sensory root
Small motor root

Question 2

Cranial nerves located at the cerebral hemisphere

Answer 2

Olfactory and optic nerve

Question 3

Cranial nerves located at the midbrain

Answer 3

Oculomotor and trochlear nerve

Question 4

Cranial nerves located at the pons

Answer 4

Trigeminal, abducens, facial, and vestibulocochlear nerve

Question 5

Cranial nerves located at the medulla oblongata

Answer 5

Glossopharyngeal, vagus, accessory, hypoglossal nerve

Question 6

From the pons, it expands into the trigeminal ganglion to
form three branches:

Answer 6

Ophthalmic branch
Maxillary branch
Mandibular branch

Question 7

• purely sensory
• leaves the cranial cavity and enters the orbit through the superior orbital fissure.

Answer 7

Ophthalmic branch

Question 8

• purely sensory
• leaves the cranial cavity through the foramen
  rotundum.

Answer 8

Maxillary branch

Question 9

• mixed
• leaves the skull through the foramen ovale.

Answer 9

Mandibular branch

Question 10

OPHTHALMIC NERVE THREE MAIN BRANCHES:

Answer 10

Frontal nerve
Nasociliary nerve
Lacrimal nerve

Question 11

Largest branch of ophthalmic nerve that goes to the supraorbital foramen

Answer 11

Frontal nerve

Question 12

Smallest branch of ophthalmic nerve that goes to the lacrimal gland.

Answer 12

Lacrimal nerve

Question 13

Branch of ophthalmic nerve that goes to the orbit, nasal
cavity.

Answer 13

Nasociliary nerve

Question 14

The ophthalmic nerve and its branches supply ___________.

Answer 14

general sensation

Question 15

The ophthalmic nerve and its branches supply general
sensation (of touch, pain, pressure, and temperature) to
the skin of the:

Answer 15

• Upper third of the face.
• Forehead and anterior scalp.
• Around the eyeballs, upper eyelids.
• Nose and part of the nasal mucosa.
• Maxillary sinus.

Question 16

Does the ophthalmic nerve supply the oral cavity?

Answer 16

No

Question 17

Gives sensory innervation to
the dura mater.

Answer 17

Middle Meningeal Nerve

Question 18

The max. nerve gives rise to its smallest branch, the
__________________ near the foramen rotundum.

Answer 18

middle meningeal nerve

Question 19

It supplies the dura mater of the middle cranial fossa

Answer 19

middle meningeal nerve

Question 20

After passing through the foramen rotundum, the maxillary nerve splits into
four branches:

Answer 20

Pterygopalatine nerve
Posterior superior alveolar nerve
Infraorbital nerve
Zygomatic nerve

Question 21

It is a ganglion in the maxillary nerve

Answer 21

Pterygopalatine nerve

Question 22

It is a branch of the pterygopalatine nerve wherein it is called _____ after it passes through the greater palatine foramen.

Answer 22

greater palatine nerve

Question 23

supply the part of the hard palate and palatal
gingiva to the posterior teeth (molars and
premolars)

Answer 23

Greater Palatine Nerve

Question 24

enter the palate through the lesser palatine
foramen to spread posteriorly to supply the
tonsils and mucosa of the soft palate.

Answer 24

Lesser (Posterior) Palatine Nerves

Question 25

emerge anterior of palate through incisive foramen.

Answer 25

Nasopalatine nerve

Question 26

Its dental branches enter to the foramina in the tooth roots to supply the max. molars (except for one root = the mesiobuccal root of the max. first molars).

Answer 26

Posterior superior alveolar nerve (PSAN)

Question 27

It enters the infraorbital canal, where it becomes the ________________.

Answer 27

Infraorbital Nerve

Question 28

While inside the infraorbital canal, the infraorbital nerve gives off two branches:

Answer 28

Middle Superior Alveolar Nerve Anterior Superior Alveolar Nerve

Question 29

Branch of infraorbital nerve that enters the foramina of the max. premolars and the mesiobuccal root of the 1st molar.

Answer 29

Middle Superior Alveolar Nerve

Question 30

Branch of infraorbital nerve that enters the foramina of max. anterior teeth.

Answer 30

Anterior Superior Alveolar Nerve

Question 31

After exiting the infraorbital foramen, the infraorbital nerve splits into its end (terminal) branches innervating the skin and mucosa of the side of the:

Answer 31

Nose (nasal branches). * Lower eyelids (palpebral branches). * Upper lip (superior labial branches). * Facial gingiva of the max. premolars and anterior teeth.

Question 32

Zygomatic Nerve is divides into two branches:

Answer 32

a. Upper Zygomaticotemporal Nerve b. Lower Zygomaticotemporal Nerve

Question 33

Branch of zygomatic nerve that supplies the lower skin of the temporal region and lower part of the orbit.

Answer 33

Lower Zygomaticotemporal Nerve

Question 34

A mixed division of the trigeminal nerve

Answer 34

Mandibular nerve

Question 35

retracts the mandible

Answer 35

Motor fibers

Question 36

Motor fibers retracts the mandible, with the assistance of:

Answer 36

Muscles of mastication Mylohoid muscles and the anterior belly of the digastric muscles.

Question 37

Muscles of mastication

Answer 37

temporalis, masseter, lateral and medial pterygoid

Question 38

The lateral pterygoid has two part

Answer 38

superior and inferior head

Question 39

Lateral pterygoid part that superiorly moves the mandible with masseter, temporalis, lateral pterygoid and medial pterygoid

Answer 39

Superior head of the lateral pterygoid

Question 40

Lateral pterygoid part that moves the mandible inferiorly with the mylohyoid, anterior belly of digastric

Answer 40

Inferior head of the lateral pterygoid

Question 41

responsible for touch, pain, pressure, and temperature, along with the skin of the lower third of the face, floor of the mouth, anterior two thirds of the tongue

Answer 41

sensory fibers

Question 42

Does mandible nerve allow sense of taste?

Answer 42

no

Question 43

Four sensory branches of mandibular nerve:

Answer 43

Auriculotemporal Nerve Buccal Nerve (Long Buccal Nerve) Lingual Nerve Inferior Alveolar Nerve

Question 44

Motor branch of mandibular nerve

Answer 44

Mylohyoid Nerve

Question 45

Sensory branch of mandibular nerve that supply pain and proprioception fibers to the TMJ, skin of the outer ear, lateral aspect of the skull and cheek

Answer 45

Auriculotemporal Nerve

Question 46

Sensory branch of mandibular nerve that innervates the mucosa and skin of the cheek up to the corner of the mouth, buccal gingiva in the area of the mandi. molars (distal to the 1st molar), and sometimes buccal of the second premolars

Answer 46

Buccal Nerve

Question 47

Sensory branch of mandibular nerve that Goes to the tongue to provide general sensation (touch, pain, pressure, and temperature, but not taste). Dorsal and ventral surfaces anterior two thirds of the tongue and adjacent tissues.

Answer 47

Lingual Nerve

Question 48

Sensory branch of mandibular nerve that enters mandi. foramen = inside the mandi. canal: Spread into dental branches to enter the apical foramen of all mandi. molars and premolars.

Answer 48

Inferior Alveolar Nerve

Question 49

Inferior avleolar nerve within the mandibular canal splits near the roots of the premolars to become:

Answer 49

mental nerve and incisive nerve

Question 50

Over-lapping nerve fibers location and what is it called

Answer 50

lower anterior teeth by the incisive nerve fibers

Question 51

Nerve of Mylohyoid muscle and the anterior belly of the digastric muscles that opens the mouth

Answer 51

Mylohyoid Nerve

Question 52

to the masseter muscle, as well as to the TMJ.

Answer 52

Masseteric nerve

Question 53

to the temporalis muscle.

Answer 53

Posterior and anterior temporal nerves

Question 54

to the medial pterygoid muscle.

Answer 54

Medial pterygoid nerve

Question 55

to the lateral pterygoid muscle.

Answer 55

Lateral pterygoid nerve