malamed anatomic considerations

Question 1

a nerve that is largest among the 12 cranial nerve

Answer 1

trigeminal nerve

Question 2

a nerve root that supplies the muscle of mastication and other muscles in the region

Answer 2

motor root

Question 3

where does motor root of the trigeminal nerve originate?

Answer 3

motor nucleus within the pons and medulla oblongata

Question 3

in what direction does the motor root travel to the region of the semilunar ganglion?

Answer 3

travels anteriorly

Question 4

at the semilunar ganglion, what direction does the motor root travels?

Answer 4

in a lateral and inferior direction under the ganglion towards the foramen ovale

Question 5

where does the motor root leaves the cranium?

Answer 5

leaves the middle cranial fossa along with the sensory root of V3

Question 6

motor fibers of the trigeminal nerve supply the following

Answer 6

1. masticatory
   -masseter
   -temporalis
   -medial&lateral pterygoid
2. mylohyoid
3. anterior belly of the digastric muscle
4. tensor tympani
5. tensor veli palatini

Question 7

where does the sensory root of trigeminal nerve located

Answer 7

meckel cavity, anterior surface of the petrous portion of the temporal bone

Question 8

ophthalmic division (V1) travels _____ in the lateral wall of the cavernous sinus to the medial part of the
superior orbital fissure, through which it exits the skull
into the orbit.

Answer 8

anteriorly

Question 9

where does the ophthlamic nerve exits .

Answer 9

superior orbital fissure

Question 10

The maxillary division (V2) travels _____ and _____ to exit the cranium through the foramen rotundum
into the upper portion of the pterygopalatine fossa.

Answer 10

anteriorly and downward

Question 11

V2 exits the cranium through?

Answer 11

FORAMEN ROTUNDUM into the upper portion of the pterygopalatine fossa

Question 12

V3 exits the cranium through?

Answer 12

foramen ovale

Question 13

The mandibular division (V3) travels ___ to exit the skull, along with the motor root,
through the foramen ovale. These two roots then intermingle, forming one nerve trunk that enters the infratemporal fossa

Answer 13

almost directly downward

Question 14

first branch of trigeminal nerve that is purely sensory

Answer 14

ophthalmic nerve

Question 15

smallest division of trigeminal nerve

Answer 15

ophthalmic nerve

Question 16

V1 supplies the?

Answer 16

eyeball
conjunctiva
lacrimal gland
parts of the mucous membrane of the
nose and paranasal sinuses
skin of the forehead
eyelids, and nose

Question 17

three main branch of V1

Answer 17

nasociliary
frontal
lacrimal

Question 18

the _____ nerve travels along the medial border of
the orbital roof, giving off branches to the nasal cavity
and ending in the skin at the root of the nose.

Answer 18

nasociliary nerve

Question 19

brach of nasociliary nerve

Answer 19

anterior ethmoidal and external nasal nerve