10 oral cavity and nasal cavity

Question 1

**

the mouth cavity has two parts

Answer 1

1 vistibules : ext lips and cheek deided into sulci labial and buccal
2 oral cavity :space enclose by teeth

Question 2

oral cavity proper

Answer 2

roof: hard and soft palate
floor :reflection of mm under tongue
ant: communicated vestibule
post:comunicateswith ororpharynx

Question 3

oral cavity has two opening:

Answer 3

oral fissure-from vistibule to outside
oropharyngeal(isthmus) -from cavity to oropharynx

Question 4

decidous teeth eruption :

20 teeth 5 in each quadrant

Answer 4

start at 6 months
fully erupted 2yo
first primary tooth eurapt lwer central insisor

mandebular earlier than maxillary euraption

Question 5

permenant teeth eruption :

23 total 8 each quadrant

Answer 5

start erupt 6yo
finish eurption 12 yo
except third molar

first erupt lower central insisor
1st permenant tooth erupt first mola

Question 6

gingiva of the tooth innervation

Answer 6

molars- buccle branch of v3
premolars and insisirs- mental branch of v3

Question 7

tongue devided into two parts

Answer 7

muscular muscle coved with mm
oral part- ant2/3
pharyngeal part- post 1/3

Question 8

1dorsum of the tongue contains of:

Answer 8

1 median fissure- fibrous septum
2 sulcus terminalis -v shaped sepe oral/pharyngial
3 foramen cercum- tip of v

Question 9

the four types of lingual papillae:

Answer 9

1 filiform
2 fungiform
3 vallate 8-12 infront of sulcus terminalis
4 foliate on the sides

Question 10

which libualpapillae type has no tast buds ?

Answer 10

filiform

smallest and numerous

Question 11

lingual tonsil

Answer 11

on post 1/2 aggregation of lymph nodes

part of waldeyers ring

Question 12

ventral surface of the tongues covered with:

lower part of tongue

Answer 12

smooth and thin mm
1 frenulum
2 deep ling a and v
3 fimberialed fold on the sides

Question 13

intrinsic muscles of the tongue is

oraginat inthe same organ adn NOT ATTACHED TO BONE

Answer 13

superior longi
vertical
transverse
inferior longi

Question 14

extrinsic muscles of the tongue is

4 muscles

Answer 14

palatoglossas
styloglosssas
hyoglossas
genoglossas

Question 15

what is the action of intrinsic longi muscle

Answer 15

alters shape of tongue

Question 16

what is the actions of extrinsic muscles ?

Answer 16

palatoglossas- upword and backword styloglosssas- upword and backword
hyoglossas- depresses tongue
genoglossas- protrudes apex of tongue

Question 17

what is the only muscle that isnot nerve supply by cn12 (hypoglossaL)?

Answer 17

palatogossus
(pharyngeal pluxus)

Question 18

arteries blood supply to tongue:

Answer 18

lingual a- ant aspect of eca
tonsillar a -facial a eca
ascending pharyngeal a

Question 19

Nasal septum formed by

formed from bone and cartilage

Answer 19

ethmoid
vomer bone
septal cartilage

Question 20

nasal cavity devided into

Answer 20

1 vistibule :anterior aspect of nasial cavity
2 nasal conchae: sup mid inf

nasal conchae-bony of lateral bone

Question 21

2 nasal conchae: sup mid inf
what is it ?

inferior meatus has -nasolacrimal duct

Answer 21

bony elivator from ethmoid bone
and benith each concha is a meatus (passage)

Question 22

Spheno-Ethmoidal recessis?

Answer 22

Space ABOVE SUP concha
between sphenoid and ethmoid bone
**recieves sphenoid air sinuses
**

Question 23

arteries of nasal cavity :

this area is rich in blood supply

Answer 23

1MAIN sphenopalatine a-maxil a
2 sup labial a
3 ethmoidal a -ICA
4 greater palatine a

Question 24

INnervation of nasal cavity :

Answer 24

special sen- olfactory n 1
generalsen- max nv2 /opthalamic v1

Question 25

paranasal sinuses lined with?

جيوب

Answer 25

rispiratoy epithelium /frontal-maxilla-sphenoid

Question 26

func of paranasal sinuses

Answer 26

1 reduce skull weight
2 voice modificstion
3 prevent heat lost from nose

Question 27

soft palate composed of :

post 1/3

Answer 27

1mm covers the surface
2 palatine aoneurosis- represent expanded tendon
3 muscles 5

Question 28

uvula

Answer 28

a conical projection from post border of soft p