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Anat. Prac. (Head & Neck) Pt.2

The document provides an overview of the anatomy and functions of the tongue, pharynx, larynx, temporomandibular joint, nasal cavity, and paranasal sinuses. It includes details on muscle innervation, sensory functions, and the implications of certain conditions such as cancer of the tongue and sinus infections. Additionally, it highlights the structural components and their roles in the respiratory and digestive systems.

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Charvi Khambra
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0% found this document useful (0 votes)
4 views25 pages

Anat. Prac. (Head & Neck) Pt.2

The document provides an overview of the anatomy and functions of the tongue, pharynx, larynx, temporomandibular joint, nasal cavity, and paranasal sinuses. It includes details on muscle innervation, sensory functions, and the implications of certain conditions such as cancer of the tongue and sinus infections. Additionally, it highlights the structural components and their roles in the respiratory and digestive systems.

Uploaded by

Charvi Khambra
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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TONGUE

Tongue

a) is a mobile muscular
1s
organ that lies
bhcuynax mainly in the
is dorsal surface is -oox odb and party in te
loo
divided
2. a)
posterior 1/3
Each half of the
Eac
bySulCuslptmiralis into anterior 25
tongue consists of four
and

QxbrensC
Extrinsic muscles are: untorait
muscles.
and four

ngossa
ii. alnopssa
SAlglossal.,
innervated.Paldoglosig
c) All the muscles of the tongue are
by
palodqloss.cal._which innervated hubndsa
by
is
anialmatqoreso
nerve except

3. Geniogiossus muscles
aare reponsible for
Dmusion
prevents the tongue from falling backward in the of the tongue.

pnphaunx
aFrom anterior e-Savirq
c)iscalled as
muscles of the Yongue.
2/3rd except circumvallate
papillae, general sensations are carried by
ingual nerve and taste sensation by
posteYior 1/3rd including circumvaljate papillae generalchodiaymbls
nerve.
b) From
as well as taste sensations are
carried by 9glossobhULgenerve.
c)Frqm the postërior most part general s well as taste sensations are car:ied by
Jnfoto
Oyngeal. nerve.
Prediet Question
The cancer of posterior 1/3rd of the tongue usually has poor prognosis.

-Thcameen o b10s/oru orloethid the Forqu


Usually has pou ppanasl's due to bibte al
yphothoi shredd

3
lalaleptun(Riuch edge)

Cho anae wi
Nalal ConchaL
-Tubal eluvaion Nayephayn
-opentngof
alud to tube
Caviufmuth
R
c L Pala
Uvula
EPglottis o re phay
Paladun+orgi

Aryepglelti
fold
Taleo tongud
Laryngeal indt
Tteraytenoid Arlfosm fos
od Pot-cridordaas phetn
PHARYNX

Pharynx
isa fibromuscular tube, situated behind the:
Ose .
moudb ii. laun
xtends from thebase
extends from
the skll to theowen bosdondcarlage
b)
is divided
into three parts
Outoud
Nasa-pbaya. i. Uonophaynyii,Lawaeophay*
Thewall of the pharynx is composed offive layers, from superficial to deep these are
The
2
i uCusa haygeobagulepit. Musulan Lo
iv. BuLLophanngagl.VSSmutoso
Pharyngeal muscles Hzu
are arranged in 2 layers
a)
i. outer Cincuulan laga i iner lorgituhione laue.
b) circular layer comprises
PLovstiuhor
Supetuax P.lansii. Milal POmsboTnhe
c)longitudinal layer comprises
iStyloþhaugni Daloro phaye 3alpiuo phayia
all the muscles are inñerÝated through Cxan nenaerve except cLessocy
stylophaNheeal which is innervate by(hlosh phos nerve
Crgea
4. Structures passing thròúgh pharyngeal gaps:
constrictor :
a) between the base of the skull and superior
tuk i lausny
ll fscendialqdue
b)
iAuditoy
superiorand middle
between constrictor: PulaTu MUscle.

iStulaphaungeg_i Glosso bhayageDu


interiot constrictor:
c)betweenmiddle and
Thterval dangeal ei Supetia agiaealoe
d) betyeen theinferiorcoiatrhetor and oesophagus

Beocune layrgeai Typ kugeclvew


ee
Predict Question
diverticulum ?
What is the anatomical basis of pharyngeal
dra- Ltis a small bovangulart g fon Jm 1he lowen pad o e
prosteua1 waul ophayhx,wnch 3 mot (eneyd by musca
The weck ana uis oltd, K s dehiseente Th mutasa od
SubmuSa o Phayngo mabebuddae out hrough
this
SubmuosO avipa 4o m phygëal cluetiuum
This dfvetieulum bCCwu cue fo mowomuouan h codihen
butween oepue thynopoo8 Vgeous mUsdle ard ouophanuen

muwclu

14
ePbtts HHoid bor
Thyohyo14 merbore

-Carhiege trilien
Aatual thsoluof
sqon ent -0pening bs sufeuiu layngesl
meebon thmHoid veseland inenal lorrqed
igement heuve
Supeuos Conl of Hhrojd

THo d outlag
CrILoHhyso jd
ugemeh
Tneuo cornuof 4hrod

Arch of tritoid Crico yroid Membron

CHl-
Criotacheal
Mem6 14n
LARYNX
1. Larynxis the organ of

The
framework
louen_noapinatory trou (LRI).
of larynx is.made up of 9 cartilages, large unpaired
The

2
thnle ree
and
small paired.
a) paired cartilagesare

b)unpairedcartilarges are
Lomiuahei. unitosn
i
piglotis_
is
i_lhyoidi icoíd
3.
Laryngeal cavity divided into three parts :

a) Veslibul extends from danyra etoLediblan fold,


Vonace kinua) intervenes betweeniodtlk Vpcal choxd klbo
nglalli ha-lies below the UOcal olds
4All the intrinsic müscles of the larynx are

a)adductors of the vocal cords except_ pnstexto Cicmutena which is


an abductor, thercfore it is called the safety muscle of the larynx.
is
b) innervated by DLCwOtbruenerve except CioThpud which
innervated by xeinal lauvgeal.
5. Sensory innervation of the larnyx.

a)above the vocal cords is by nteunal_lanurgal nerve.

leLgal_nerve.
b)belowthe vocal cords is by U10Dcounorn

Predict Question
nerve is damaged?
into the larynx ifinternal laryngeal
Why foreign bodies can easily enter
t e laoyx, Sevive pohte
tg- When any toujan body euuten e ofet. Howeu darye
wughig us ex ted to enpel
to Hhe exfeual Teugeal roe
aue arestkesja
memb mue "n the _uhag lbthis pvt ot
mucus the CUd. s o a t foren
rgjlex
t e lovy nx, bheakirg,
eten
body an ediolly

15
A t i u l a emunenu
Arhalarfosla
Th-Qguiulan

pper Com pariment 1in


( .LowntomparBment .Cavjy

7ympanucplate
Head Condyle) of
onelu ble
TEMPOROMANDIBULAR JOINT
horomandibular joint is a synovial joint of
1.

2.
Ten

articular surfaces of the Temporomandibular joint are


The articu
Concy law. variety.

a)above: duuíula sa and


lsiulcun tulbeichemminone., of temporal bonc
i.
b) below
Head of the mandible.

Ligaments of thetemporomandibular joint are


a) main ligaments:
iCabsula lgame i. loterallemD ron me-t.
b acessory ligaments iStulomaadibubn i. Sphonomyribul
Temporomandibular
ugcune:
joint is innervated by thëfollowing nerves domont
Auiaulo-tombarel reveb) Mossehsic muue
5. Muscles producing elevation ofthe mandible (closing of the mouth) are:
a) MosLetens b) Jembonoalis
c) Media skaygoid. the mouth) are :
6. Muscles producing depression of the mandible (opening
a) Lectenalbleyaaid McdaLeuigoad
b) assisted by : 9 bsMterna i)
mandible
producing protrusion ofthe
are
7. Muscles

a)lateal Plenyaoid_b) Melied pibyuoid


fibers of temboxalis.
8. Retraction of mandib!e is brought about
by posterior

muscle.
Predict Question
is damaged?
larynx if internal laryngeal
nerve
the
bodies çan easily enter into
Why foreign is dameged,hee us
fig-It inteurod laougesu reoe
menmbreve un suoqloihs
avesthesa omuuus
boohree togh vefléx.s
au

pord on and loss o bocy Cah vctoudy emten the


esutt he forajh
douuynx

16
CphenojdalaiuNnuseg

-Aontalaissinu

ehmoidal

al nule
oxbit

Nae
-HG cellauy auu
Sepum

Sinus
PARANASAL AIRIR
1. Nose

a)
is Cuun led Panamd shaped
is the organ of
b) Smal projection in the middle of the face.
c)consists of: i.

d)
is the most Bonea-(4
comnonly i lartrlcge:(5).
2. Nasal cavity actw1ed. part of the face.

extends fromextealnaka anteriorly


is divided into right and left halves to
mancl atw posteriorly
by osseocartilagenous_
3. Nasal septum battHbn blwd Ns
CawiHes.
a)consists of three main components:
ienypat u
lagenou ntfeudevnpeuits.
b) is supplied by the following arteries
i
Andex dhmaid i
sphenobokrhirii. Supeux Culbe.
iv.
agoutelonhie v soplee-abntire.
4, The lateral wall of the nose presents
a) three shelf like projections:
i
SuperioK tonelei.Midlonole ii. ntexioy Lorcboe.
bthree deep passages beneath the overhanging conchae:
Supoion reauu i Mih maia it ntexiac meue,
5. The structures opening inthe lateral wall of the nose are:
a) sbhenoidol cis sipusein the sphenoethmoidal reces.
b) Pstexiox etbmoidala in the superior meatus.
c)Middloetboidial a Siruk Maxillay_af Sirugand in the middle meatus
d) Nos-uaoruiral dut in the inferior meatus.
Predict Question
The anteroinferior part (Little' area) of the nasal septum is the common site of nose bleeding|

(epistaxis).
AN-TheSowe o rauod bleedlig pt, epaastne iwy is to

layny ccipillevy Pluxu, Siitatd odthe ankeio- jmfen


po ot he sephum o e more. Itk alled
issel baueh s plexus.
Desendig Proces o
acumaL bone
Supwot and muddlu
ehnoid bone
hrontal ocey Conchat oh
of moxilla Spheno palati na
nlaal
o xonen
bone
Unanati Process o
Laetal nalal e4hmoid

CayHlag medial pterygoid


Lalergl 7Aad of 3pheroia
ope nu 'rng of monillorySing
ala
Cathlau CHuno dal Pro ceg oO
Lacimal Pree intewo 4 ngal conch
nheuo e nasal Pes pendiudve platof
Condhg
Pold ine
moxido poceu of
inewd nolal oncha
Muouy
Menbne
PARANASAL AIR SINUSEs
Paranasal sinuses

re
are Cu illed filled cavities in the
bones aroyyd
are lined with
bsado shadified the nose.
eanasal sinuses are paired and lliadad epithelum
named according to the
bones containing them v1Z.
i.
omtadsinusi
Sphenod sinus Maxill ouy 3inus.
ivelhmofcdi
The functions ot paranasal sinuses are Sinus
toMaxillary
mue skull ligreali.
yi
Wavun up
A]1.
sinus i
burmkif teO nird
a)is located in the body of
b) is the
mOi lla.
lorgest DU1aNCua_air sinus.
c)is pufmfdal.. in shape.
dopens into the
middle.mecdus.of the nose.
(The opening of the maxillary sinus is near the roof than the floor which is an
disadvantageous position for natural drainage.)
2. Boundaries of the maxillary sinus

a) roof is formed by the floor of the


OtbPt process of maxilla and lies 1 epa
b) floor is formed by the. Cuwola
inch below the level of the floor of the nose.
c) base is directed medially towards the lateral wall of the mo
d) apex is directed laterally in the u g o m a d i c p r o c e s s of the maxilla

B] Frontal air sinus


a) is located in the Deab subaulconyonch. part ofthe frontal bone.
b) is deep to the medial part ofJoot he osbit.
c) is in shape.
of nose ar the anterior ends of
d micdle meocus
opens into th

mtal amasal duet.


Predict Question
infected sinus.
Maxillary sinus is the most commonly
thrg-Maxillavy sinus J's -the mast commonly unteshd sinu beeue
is eloe to anotomie nrekion usth Aronel sfnu,
anbefo ethmoidl sin ard moxi llay tecth
allewig ecsy speod ointeelfon.

18
Inteunal ecs
middluear

F t e r n a le a h

Pinrna

S e m m u r g u l a

Canals intensGo uti


ned

y gHdoochleas
nerve

CoeRLa
- Bory Patt
Aulien
caullgyonoy tude
Tympau
Pault
Concha
memb9ne

Bny
CoHlincy Pau alrinth Hadophoryn.
P

nlenal auditaymeat4.
EAR

gar

is the
organ of hecuUrg
Consists f three parts
ii. esteinal
MiddL
ear
ii. and
External :oustic meatus
i s approximately
ntënal_eat.
cm. long
s lateral 1/3rd
lateral
in its
h) 1/5rd is
Is
CCVti LigenoIM.and in its medial
is S-shaped and directed medi&llu 2/3rd is bony.
and
upwandu
1panic membrance thin membranous partition between the
is a

and uall mondikle. ear.


extourol aLoAtiemoru,
4 .Middle ear

is a narrow slit like space located in the


part of thettemporal bone.
b)isfilled with air.
lcommunicates with: i. pharnyx through
i. mastoid air ceils
through
Audty tuke
he atu tohe mastO'd
5. Contents ofthe middie ear are:
Otrum.
a) three ear ossicles: i.Malleus_.Tcus &ii. stapes
b)two muscles : i. ena tymboui& i. _Stabeolfus
two
nerves: i. ilosto
6. Middleear has six walls
þhadnael & i.
Sbeufrinterir Codio-thyoi
a)eMntel_b). PlooY nteuolcondtid
msieu-ande latoral/wnbrowa 9MedlallaburthNe
1. Medial wall of middle ear presents the following features
)pYomrtosy_5)tensulatachltao)-Snus dymhmn
8. The intrnal ear consists of:
b)bony labyrinth comprising Lochlea/19estfbok Semicicule Cd,and
c)membranous labyrinth comprising acup_ otLsacclu and
9. Membranouslabyrinth:
a) is enclosed within the cOwity
b) is filled with eudolymph
C)has sensory receptors for heafing in
and balance in mecLulce liexfe

Predict Question
in children ?
Why middle ear infections are common
#r-hey vey uommov in
oe dien bLcowe tey Jeal
tyouhoh
he iddleea rem ubpon uphrauOy
starng nyecffon
pray mpha tube.. he lorg meckiawhh ciniall
hod +o ne supbunatie obti
PTOs o eu dlischoe ancd peruomatin of
Tmpme memlo yoe.

19
EXTRAOCULAR MUSCLES
vtraocular muscles that move the eyeball are
Theextra
Supe Rectus
b)
c) Medialpctus.
d)
)
Lcaten.cnacus
Supeio1 ehliae
Iateuiar
which
eLlae
(The muscles
moves the upper eyelid is Jeuala halptbee steuis
2
All the
a) All extraocular muscles are innervated byOcculompto
extra
nerve except

8uboniox Ghllue nd latexal xechus by T


b)Superioroblique is innervated by

c)Lateral rectus is innervated by


tochle_ nerve.
Cbouecinse nerve.

3, Muscles responsible for


a) upward movement of eye (elevation)

i. b y9uboHÍDS UWchuu i nseni eblique


b)downward movement of eye (depression)
ii. oblia ie
c)medal rotation of the eye (adduction) Mcdfal ectus Inteniarehs sueup
d)lateral rotation of the cye (abduction): _ -R, Suboin RTsewar
oblae.
4. Coordinated movements of the two are called Orugate.culaaMovements.

Predict Question
What is squint/strabismus ? Discuss
cause of medial and lateral squints.
he- Weakrox ky þovolys is gt a mucle causes sqirt/
Stoatimus - whch may e Concomutartt an cotaly tie.
is mo i itauHfon
Lonuomutant sajur ds torgenitel, thoe s-
movementno, deblopogid, In walyyhe sajuin-
rooeodis imitec, dialopo- o are esevt|

20
indocosneal umbus Iry
Rpil
anglu meuo cho be
PrHeuo
Rssuascho mie omprHma
Hyalord
membrane Canal oflee
yalsid
Lens

ophtdukc Poteuo
Com partm ont
Oph
nerve

Fovea cenkalul
EYE

Eye
is the organ of vísual.
is located int the anterior
b) 1/3rd of the
2
wall of the eyeball is conmposcd of
The walle

the outer fibrous layer


three layers. Obitou cavity.
a) comprises
iThe sclera Sdleia & & Lomnea
Con nea
forms approximately
fons the donse fibOus posterior 1h o sixb. of the outer coat.
o provide insertion to -Hsegf the oye sbere
ii. The cornea cila. renfae
muscles.
forms approximately anterior
O is transparent o-sixth of the outer coat.
is
1s
is the main,
OAascula1 and therefore be readily transplanted.
can

A
xanponan
The middle or vascular layer media of the eyeball.
called uveal tract form behind forwards comprises
Louefd__ ciliay bms&_
i. The iris
contains variable amounts of
different color of the eyes in Jgameut
different
which is responsible for the
has an aperture, the
Yaces.
Dubil_ in the centre.
contains two smooth musclés which regulate she size of the pupil viz.
ipstridoK þapilbe& alouor popillce
c)The inner or nervous layer comprises an outer layer and inner
photosensitive Sena layer. The neural layer contains two types of
receptors:
2. On opthalmoscopic examination the retinal presents following features
a) optic disc
i. is situated slightly pmedial to the posterior pole,
LmeL and is therefore
ii. us devoid of Dhoo naand
insensitive to light (blindspot)
b) macula lutea
. is a Pals oval area located at the posterior pole ofthe eye.
i. is 3 mm madial to th optic disc.

Predict Question
anatomical basis.
What is papillaedema ? Giveits
d18The corgeslfon obtic dise ia orcwed by inover
inroobndapiouecue, to, awy lcrod o
oheod
heod
chovdU
fumu
dwy, brouh- P )

21
Supuuos Sajittal8inu

i p e u p G n a l t o m e l i n v e e n

t Tolaa)
sfeufiea

Juesebra
e r e b r a l vtn
V u n

intesnal
Great Cexeb radve
in.
-raght Bind
Sph eneporigtd endefainw
-

Conylu
iewiroraftemvti
Cawemoy
n
vuin (o kabóe)
Sufuuuy
Tresver iny
Ineud
Petal S1gmoid in t
iny -

intevnasyugulc uet n
DURAL VENOUS SINUSES

al venous sinuses are venous channels between the


Duomatten
Dural venous

and
Da m0tfet layers of meni nges lined bychdlballium
The
two main stic featurçs of dural venous sinhses are
2 a) absence of
mculan coat is the wall.
b) absence of Lalos.. in the lumen.
The importanti functions of dural venous sinuses are to drain:
1D the venous blood from bnalh andMonivges
a)
hthe_Gtbscpll_via the arachnoid granulations.
sinuses are:
The paired dural
Laveunnu4Tnpo
SuplUK_ xMk)
edenb anoid
ansve shdaopaniefw
sinuses are
.Theunpaired dural
siboui Saqotal b)Teg Seggiad
U0
A CAVERNOUS SICUs
d)
d cuital..
t h e cavenous sinuses are paired sinuses located on each side of the body of3phenaid bore
a r e so called because thier cavities are divided into number of spaces/ caverns by

aheCuae_
2. The structures passing through the
cavernous sinus are
tehal (lonalihrtery. b) HcuauE nerve.

3. The structure passing through the lateral wall of the cavernpus sinus are:

kuomatai mO b)unnchlean Mone


gtbomia neNMe._ d)MOxillasymornaTmaemiragbeu
4. The tributaries of cavernmous sinus are
Suio oslholmie eb) Lanexr optalmjo.yeirn
9_Coiatyaydin oreiad) sbleneouglid kins.
)behcial modM_Cerebral uun.
Cavernous sinus communicates with:,
a) transverse sinus via ubeibgmea aínus
b) internal juglar vein via nteuios-betmsal ginus
c)pterygoid venous plexus via emiss.au_n paUAL h osa
) facial vein via roioK oska& _mMAuy eh-
e)internal vertebral venous plexua via bascilou vOLAOUKphxus
Predict Question
What is common cause of cavernous sinus thrombosis ? Discuss its etfects in brief.

gConnbro Cauw o oage copie embollv


ae a fove -hotovgh a
Pteralyoi-emssa ven
w-coub aul eisi
s0viounben n, y e and doveked
eblhalme ard dooehad
Elted

22
L a c i a l
r e g u e

N a u i l rn e s u e

h o n t a l r e rv e

ST
HoloYrOo

S ed o r y r o o t
T

AE

PE in Proeré1a

Tr9 on 2 a l v e o i c s A

Supeuoy d e n t e l

Ner Dle
Pincsu
BucLal (
Auriuulo
ungd
+empurd
nerve

C h o r d a

+ u m p a u

M y l h y

rve
o i d d

-Mene rexv

ihfuuo
auweola)
TRIGEMINAL NERVE
Trigeminal nerve

is the
b) isaa mixed nerve havil
Jengest of all cranial
nerves.
arise from the
a
large
ventral aspect ofSenso yroot and asmal. mator
ch
root which
has three division viz. the
division
viz.9bhalmic,
thalamic and maxillary nerves contain only maxi lla &
mandibulat.
nerve contains both
Se nsosy
as well as
fibers,
fibers, whereas mandibular
OPTHALMIC NERVE mofor fibers.
a) is the rst of the three
divides into three branches viz divisions of trigeminal nerve.
before entering into the orbit maxdcialley acugal& ntal
throuth9ubrlOsbil
innervates yebalLuahia
c)innervates olfissure
MAgoLlcauziis
anterior arts of OC
and

MAXILLARY NERVE id
V
Udi
B) 1, The maxillary nerve
a) is the eLnd of the three divisions of trigeminal uerve.
b)leaves cranial cavity through foramen netepdum. to enter into the
heopoalgdive fossa, passes throughJm-bif_ fissure to enter
the orbit ás n b u cbihervewhichehergosthe face through the
iNADbiaN_foramen.
IC] MANDIBULAR NERVE
1. a) isthe
b)
-thisd
divides into m o t o l .
division of the trigeminal nerve.
(predominantly motor) and posterior
(predominantly sensory) divisions.
2. The branches ofmandibular nerve are:
a) from the trunk
imenenaial brahi Neue:tommdelbhowamd
b from th anterior division
i a 9 n e i Nenwe i. Deep tempoal erve
ii. ato pgain N. iv._ baga morie which is
motor except buecaul_nerve sensory).
(All the branches of anterior division are
c) from the posterior division
i. Huuicuotembn.i. noeijateups
linqual alenby rove
nerve which is motor)
are sensry except
(All the branches of posterior division
Predict Question
block?
What is the anatomical basis of inferior alveolar nerve
to e i n
pant so yeued s t y supeu
h-haunetheheJmo the mounci bug a e n , besrg verhuae y
eo lc r e w bloek
while eyogmirg e mtefo aueolaw
Uquou w
þmsrey may eulemoxla
4.oeolb is urgoukedso janaucu nele a a tu
PooHd glad Ond d a e

23
Taoprl

Toal
N

upo tutta

Muginal
FACIALNERVE
T h ef a c i a l n e r v e

isa
ed nerve.
a) nerve of the
is the
b) arises from ontdmudullaty_
arises
branchial arch.
and aassmall
root and Junction by two rots, a large medlal matr
laterallySersoq root called nervus intermedius.
the crania! cavity by
d)leavesthe ves þassing through ale
Facial nerve supplies mautid foramen.
fibers to the muscles of
) motor
motorf

Scretomotor fnbers to Sublimuel&_Shandibulan salivary glands;


and lacnimoul gland.
taste fibers of the _dheH*C 22 of the tongue excluding circumvallate
papillae.

3.
The branches of facial nerve are
a) in the facial canal
iGueehen toso
ii. en DStaedius
Chlonm tmpbQu Nee
b) at its exit from the stylomastoid foramen
i rosreHiD auH*CAOn_nene.
i Nenue o prnsteHKN bala oldisastnc
.
111. Neug4o atlohuoi
c)within the parotid gland (termiHal brahches)
i. Tompona
i.ymai
ii. Blleal
ivMandibulan
V.CoMuiCOL
Predict Question
merate its cardinal features.
What is Bell's paisy ? Enu

o faued ree, at sylomastod


drgLtoonuulan Jfsfon
JUTdmen
moienles
ettd sde s
Wnwdlos disaao om ekad
be clased
Be e l accumubBa between teeh
Dun ragti otion dood
and dveeks.

24
fade
Newt
w Suroli

ngheov R
Olic

Sett flet

C.
Tenul
Tonaue

Coue didihulion
gomophygeal.
GLOSSOPHARYNGEAL NERVE
Glossopharyngeal nervve

So
a ) I ss oc a l l e led because it mainly supplies ensosy_innenuahon omue

& Phaynax
a x CanaB nerve.
bis lateral to tne
arises from aspect of the Latehal copeit madula
ventral

ole und intoHo cerobelou Pelunee


d)
is the
nerve of
hiadu branchial arch.
orem

e)
leaves the
cranial cavity by passing through_qutouix
nerve supplies
paza Tupubn
Glossopharyngeal
2
motor fibers to lophauu qeDus muscle
a)
scretomotor fibers to the Fauoiia gland.
b)
c)tastefibers
to the
pTOstexui 1t lorgue
bhsnxtunis_and
and

sensory fibers tothe MU meborae


Sot palate
Predict Question

What is the
anatomical basis of the gag-reflex?
chwotoused by elevodfon
Hha-I is oo bowtectie lecled with
polote cnd coatauchion Þhoyveo muwcle
asosatd ewnim ond goggi n ospord toshimlus
m w memboue ooophoiy hx
Ib c w when pkuunx, tonails, poosfouo1 þauu af fog
such a
bkjeuke stuhos eko
one touched buntdmöl rovw and
phouurgal
Aftoent Wrb puovided by alato
eoen Wmb by Vogus T

25

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