neck and face

Question 1

3 branches of trigeminal nerve

Answer 1

ophthalmic nerve, maxillary nerve, mandibular nerve

Question 2

3 branches of trigeminal nerve

Answer 2

ophthalmic nerve, maxillary nerve, mandibular nerve

Question 3

which 2 branches are purely sensory

Answer 3

ophthalmic nerve, maxillary nerve

Question 4

through what does the ophthalmic division of the trigeminal nerve leave the skull

Answer 4

superior orbital fissure

Question 5

through what does the mandibular division of the trigeminal nerve leave the skull

Answer 5

foramen ovale

Question 6

2 branches of mandibular division of trigeminal nerve

Answer 6

inferior alveolar nerve (inferior dental nerve), lingual nerve

Question 7

pathway of inferior alveolar nerve

Answer 7

passes into back of mandible

Question 8

function of inferior alveolar nerve

Answer 8

sensory nerve for lower dental tissue

Question 9

function of inferior alveolar nerve

Answer 9

sensory nerve for lower dental tissue

Question 10

how can mental nerve be used for testing mandibular division of trigeminal nerve

Answer 10

sensation on chin

Question 11

how can mental nerve be used for testing mandibular division of trigeminal nerve

Answer 11

sensation on chin

Question 12

what other nerve does the lingual nerve receive fibres from

Answer 12

facial nerve

Question 13

what section of the facial nerve delivers fibres to the lingual nerve

Answer 13

chorda tympani

Question 14

what does the chorda tympani branch of the facial nerve exit the skull through

Answer 14

anteriorly through petrotympanic fissure to join lingual nerve

Question 15

direction of information flow in chorda tympani

Answer 15

bidirectional, with pre-ganglionic PSNS outflow to submandibular ganglion (pro-secretory), and post-ganglionic fibres going to submandibular and sublingual salivary glands

Question 16

what else is lingual nerve responsible for after chorda tympani has joined (mix of facial and trigeminal innervation)

Answer 16

taste sensation of anterior 2/3 of tongue

Question 17

location for testing sensory functions of trigeminal nerve divisions

Answer 17

V1 on forehead, V2 on cheek, V3 anteriorly on chin (avoid posterior as cervical dermatomes)

Question 18

location for testing sensory functions of trigeminal nerve divisions

Answer 18

V1 on forehead, V2 on cheek, V3 anteriorly on chin but avoid posterior as cervical dermatomes