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Flashcards in Mouth and tongue Deck (29):
1

chambers/passageways of mouth

vestibule
oral cavity
oropharyngeal

2

boundaries of vestibule

externally: cheek and lips
internally: teeth and gums

3

boundaries of oral cavity

anteriolateral: teeth and gums
superiorly: hard and soft palate

4

boundaries of oropharyngeal isthmus

superiorly: soft palate
inferiorly: tongue
laterally: palatoglossal arches

5

hard palate formed by

palatine process of maxilla
horizontal plate of the palatine bone

6

function of hard palate

allows mammal to breathe while nursing

7

soft palate separates which two areas

nasopharynx from oropharynx

8

soft palate made of

movable muscular folds

9

muscles of the soft palate

tensor veli palatini
levator veli palatini
musculus uvulae
palatoglossus
palatopharyngeous

10

muscles of soft palate control opening of what two passageways?

nasopharyngeal isthmus
oropharyngeal isthmus
(elevates when swallowing to close off nasal cavity, important for chewing, swallowing, coughing, speaking, & sneezing)

11

what nerve are muscles of soft palate innervated by?

all innervated by vagus N (pharyngeal plexus),
except tensor veli palatini- mandibular division of trigeminal

12

types of tonsils

palatine
lingual
pharyngeal
tubal

13

Waldeyer's Ring

imaginary ring formed by all tonsils

14

location of palatine tonsils

tonsillar fossa between palatoglossal and palatopharyngeal folds

15

location of lingual tonsils

posterior part of dorsum of tongue

16

location of pharyngeal tonsils

pharyngeal recess of nasopharynx
"adenoids"

17

location of tubal tonsils

extension of the pharyngeal tonsil
near opening of auditory tube

18

root of tongue attached to

mandible
hyoid

19

muscles of tongue

genioglossus
hyoglossus
styloglossus
palatoglossus

20

What innervates muscles of tongue

hypoglossal N
except palatoglossal-vagus (pharyngeal plexus)

21

innervation for taste on tongue

anterior 2/3= chorda tympani from facial N
posteriro 1/3= glossopharyngeal & some Vagus

22

general sensation innervation on tongue

anterior 2/3= lingual N (from mandibular division of trigeminal)
posterior 1/3= glosopharyngeal N

23

largest, most superior muscle of tongue

genioglossus

24

middle muscle of tongue

geniohyoid

25

muscle down midline of tongue

hyoglossus

26

action of genioglossus

protrudes and depresses tongue

27

action of hyoglossus

depresses and retracts tongue

28

action of styloglossus

retract and elevate tongue

29

action of palatoglossus

elevates tongue