Oral Histo Para-Oral Tissues

Front 1

bounded by the lips anteriorly, cheeks internally and the labial or buccal surfaces of the lower and the upper teeth on the posterior

Back 1

Oral vestibule (vestibulum oris)

Front 2

bounded by lingual surfaces of upper and lower teeth anteriorly and laterally hard and soft palate superiorly, and sublingual sulcus and the tongue inferiorly

Back 2

oral cavity proper (cavum oris proprium)

Front 3

what are the para-oral tissues:

Back 3

lips

cheeks

hard and soft palate

sublingual sulcus

tongue

tonsils

salivary gland

teeth and the supporting structures

Front 4

it is muscular and largest single orga in the mouth located in the floor of cavity (anterior two thirds) and in the pharynx (posterior one thirds)

Back 4

tongue

Front 5

it separates the anterior two thirds of the tongue from the base or posterior one third

Back 5

sulcus terminalis

Front 6

it divides the anterior part of the tongue into lateral halves

Back 6

lingual septum

Front 7

papillary part or oral part

Back 7

anterior two thirds

Front 8

lymphatic section or pharyngeal part

Back 8

posterior one third

Front 9

a small V-shaped groove located posterior to the row of vallate papillae

Back 9

terminal sulcus

Front 10

it is located at the apex of V-shaped terminal sulcus

Back 10

foramen cecum

Front 11

round or oval prominences found at the dorsl surface of the base

Back 11

lingual follicles

Front 12

a small pit at the center of lingual follicles

Back 12

lingual crypt

Front 13

the dorsal mucosa covering the anterior part is irregular because?

Back 13

because of the presence of evaginations and invaginations known as the lingual papillae

Front 14

4 types of papillae:

Back 14

Filiform

Fungiform

Foliate

Vallate

Front 15

they are numerous fine, pointed, cone-shaped or club-shaped structures about 2.5mm long consisting of core of connective tissues

Back 15

filiform papillae

Front 16

are mushroom-shaped or round reddish prominences about 1.9mm long with dom-shaped top and narrow base possessing one or more taste buds. These papillae are very vascular and that accounts for the reddish or intensed pink color

Back 16

fungiform papillae

Front 17

are narrow mucosal folds bilaterally located along the posterior border of the body about 4 to 8 in number and bear taste buds. These papillae are well-developed.

Back 17

Folliate papillae

Front 18

the largest lingual papillae about 1mm or more in height, 2.5mm or more in width and 8-10 in numbers.

Back 18

vallate (circumvallate) papillae

Front 19

Secretions of _______ ______ gland glow into the sulcus and wash the soluble elements of foods that stimulates the taste buds

Back 19

Von Ebner

Front 20

They are ovoid or barrel-shaped intraepithelial organs for taste perceptions

Back 20

taste buds

Front 21

2 types of cells found in taste buds:

Back 21

taste cells

sustentacular cells

Front 22

a type of cell that are slender columnar dark staining cells and elongated nuclei, 4 to 20 in number per bud and possess stiff hair like processes projecting from the free surface into the taste pore

Back 22

taste cells

Front 23

gustatory cells, neuroepithelial cells

Back 23

taste cells

Front 24

these are the outer cells arranged like staves of barrel with ovoid or round hypohromatic nuclei

Back 24

sustentacular cells

Front 25

supporting cells

Back 25

sustentacular cells

Front 26

Intrinsic muscles of the tongue

Back 26

a. Vertical

b. Transverse

c. Longitudinal

- superior (dorsal)

- inferior (ventral)

Front 27

extrinsic muscles of the tongue

Back 27

styloglossus

hyoglossus

genioglossus

palataglossus

Front 28

movements of the tongue are produced by ______

Back 28

striated muscles

Front 29

the blood supply of the tongue comes from ____

Back 29

lingual artery

Front 30

branches of lingual artery

Back 30

dorsal lingual (base)

sublingual artery (lingual sulcus)

deep lingual artery (ventral)

Front 31

it receives blood from the dorsal lingual, sublingual and the deep lingual veins

Back 31

lingual vein

Front 32

True or False.

Tongue has plenty of lymphatic supply

Back 32

true

Front 33

the 2 nerve supply of the tongue

Back 33

lingual nerve

glossopharyngeal nerve

Front 34

it innervates the apex and the body of the tongue

Back 34

lingual nerve

Front 35

it innervates the base or posterior one third of the tongue

Back 35

glossopharyngeal nerve

Front 36

3 types of nerve endings:

Back 36

a. intragemmal fibers (cellular constituents of the taste buds)

b. intergemmal fibers (between taste buds)

c. Perigemmal fibers ( invest the taste buds)

Front 37

Masses of lymphoid tissue with the primary function or producing lymphocytes and has a role in immunization. these are four in number and forms a protective ring of Waldeyer along the buccopharyngeal junction.

Back 37

Tonsils

Front 38

ovoid bilateral structures situated in the pharyngeal folds about 1 by 1/2 inch

Back 38

two palatine or faucial tonsils

Front 39

found at the base of the tongue posterior to the vallate papillae.

Back 39

Lingual tonsils

Front 40

How many lymphoid units that make up the lingual tonsils?

Back 40

35 to 90 lymphoid units

Front 41

it is located on the median surface of the dorsal wall of tehe nasopharynx as longitudinal folds about 3cms long

Back 41

Pharyngeal tonsils (adenoids)

Front 42

2 groups of salivary glands

Back 42

major(extrinsic) salivary glands

minor(intrinsic) salivary glands

Front 43

gland which has intermittent secretions

Back 43

Major or Extrinsic salivary gland

Front 44

Types of major salivary glands:

Back 44

Parotid gland

Submandibular gland

Sublingual gland

Front 45

Glands which disharge their secretions continuously.

Back 45

Minor (Intrinsic) salivary glands

Front 46

Types of minor salivary glands:

Back 46

labial gland

small buccal gland

palatine gland

anterior and posterior lingual gland

Von Ebner's gland

Glossopalatine gland

Front 47

thread-like, pointed conical structures arranged in numerous rows parallel to the terminal sulcus

Back 47

Filiform papillae

Front 48

Histologically made up of stratified squamous keratinized epithelium

Back 48

Filiform papillae

Front 49

It is made up of stratified squamous cells

Back 49

Vallate (Circumvallate) papillae

Front 50

An intrinsic muscle that runs from the dorsal to ventral tongue surface

Back 50

Vertical muscle

Front 51

An intrinsic muscle that runs the width of the tongue

Back 51

Transverse muscle

Front 52

an intrinsic muscle that runs the length of the tongue between the genioglossus and hyoglossus

Back 52

Inferior longitudinal muscle

Front 53

an intrinsic muscle located immediately deep to the mucous membrane

Back 53

superior longitudinal