Oral Cavity

Question 1

relationship of sublingual region

Answer 1

lingual n spirals around the submandibular duct

the duct will be above the lingual n in the floor of the mouth

Question 2

parasympathetic inn to the sublingual gland

Answer 2

PRE - superior salivatory nucleus to facial n and chorda tympani to join with lingual before entering the submadibular ganglion
POST - submandibular ganglion to sublingual gland

Question 3

sympathetic inn to the sublingual gland

Answer 3

POST - superior cervical ganglion to external carotid and facial plexus to the sublingual gland

Question 4

anterior 2/3 of tongue

Answer 4

trigeminal n - GSA fibers (sensory)

facial n - SVA fibers (taste)

Question 5

posterior 1/3 of tongue

Answer 5

glossopharyngeal - GSA and GVA (sensory and taste)

Question 6

intrinsic mm of the tongue

Answer 6

derived from myotomes

GSE from hypoglossal n (motor)

Question 7

extrinsic mm of the tongue

Answer 7

inn by hypoglossal n

Question 8

paralysis of the tongue

Answer 8

unilateral hypoglossal palsy leads to fasciculations of intrinsic mm of the tongue
when a person sticks their tongue out it will deviated towards the side of the lesion

Question 9

vessels and lymphatics of tongue

Answer 9

arterial supply - lingual a and profunda lingual a
venous drainage - lingual v to IJV or facial v
lymphatics - deep cervical lymph nodes

Question 10

muscularis uvulae m

Answer 10

inn by vagus (X) via the pharyngeal plexus

Question 11

tensor veli palatini m

Answer 11

inn by mandibular n (V)

tenses the soft palate and opens the auditory tube

Question 12

levator veli palatini m

Answer 12

inn by vagus (X) by pharyngeal plexus

elevates the soft palate

Question 13

paralysis of the tensor or levator palate

Answer 13

mm on the side of the non-paralyzed side to pull or deviate the uvula towards the normal side

Question 14

greater palatine vessels and n

Answer 14

inn hard palate

Question 15

lesser palatine vessels and n

Answer 15

inn soft palate

Question 16

palatine tonsil

Answer 16

supplied by the tonsillar a and palatine branch of the ascending pharyngeal
glossopharyngeal n is closely related tot he floor of the tonsillar fossa
drains nto the tonsillar v (bleeder) to pharyngeal venous plexus to facial v
lymphatics drain to jugulodigastric nodes

Question 17

ethmoidal bulla

Answer 17

boney eminence overlaying the middle ethmoidal air cells

Question 18

hiatus semilunaris

Answer 18

contains the opening for the maxillary sinus

Question 19

ethmoidal infundibulum

Answer 19

drain the anterior and ethmoidal sinuses

Question 20

nasolacrimal duct

Answer 20

opening found in inferior meatus

Question 21

sphenopalatine a

Answer 21

supplies the septum and lateral wall of the posterior one half of the nasal cavity

Question 22

anterior and posterior ethmodial a

Answer 22

supply the anterior one half of the wall and septum

Question 23

anterior ethmoidal n

Answer 23

inn the mucosa of the anterior 1/3 of the nasal cavity

Question 24

pterygopalatine ganglion

Answer 24

inn the posterior two thirds of the nasal cavity

Question 25

nasopalatine n

Answer 25

inn the mucosa of the gingiva and hard palate in the area of the upper incisors

Question 26

maxillary sinus

Answer 26

roof forms the floor of the orbit
floor is part of the alveolar portion of the maxilla
posterior maxillary wall forms the anterior wall of the pterygopalatine fossa and infratemporal fossa
drains by ciliary action, gravity and negative pressure into hiatus semilunaris

Question 27

maxillary sinusitis

Answer 27

associated w/ toothache of 1st or 2nd molars due to close relation w/ maxillary sinus
may spread to fontal, anterior ethmoidal cells, nasal cavity , teeth and maxillary sinuses

Question 28

tansmaxillary surgery

Answer 28

maxillary sinus is frequently used as a surgical approach to its surrounding structures

Question 29

ethmoidal sinus

Answer 29

anterior ethmoidal cells - anterior part of hiatus semilunaris
middle ethmoidal cells - surface of the bulla ethmidalis
posterior ethmoidal cells - open into the superior meatus

Question 30

frontal sinus

Answer 30

common relationship with ethmoidal sinus

frontonasal duct drains into either the ethmoidal infundibulum or the frontal recess of the middle meatus

Question 31

relationships of the sphenoidal sinus to adjacent structures

Answer 31

post - pons, basilar a
superior - pituitary 
anterior - nasal cavity
inferior - nasopharynx 
lateral - internal carotid, cavernous sinus

Question 32

vidian n

Answer 32

POSTganglionis sympathetic
GVE PARAsympathetic
GVA
to pterygopalatine ganglion

Question 33

lesser and greater palatine n

Answer 33

GSA, GVA, GVE PARAsympathetic, POSTganglionic sympatheic fibers to the mucosa of the inferior surface of the soft and hard palate