Anatomy of the Nose At

7/26/2019 Anatomy of the Nose At

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AN ATO M Y O F N O SE

& PAR AN ASAL

SIN U SES

Supervisor:dr. Oscar Djauhari, Sp.THT-KL

Presented by:Annisa Tri Handayani !"##$%""#"&

'(er)ship o* +ar ose Throat Head and ec) Departent/e0iona( Hospita( /. Syasudin SH


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External Nose

Pyraida( shape

S)e(eton part(y bony and part(y

carti(a0inous and ebranous asa( bones

arro1 and thic)er above

2ider and thinner be(o1

Articu(ate 3r(y above 1ith the nasa( parto* the *ronta( bone 1ith each other(atera((y 1ith the nasa( process o* thea4i((a


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External Nose (2)

5n*erior: the upper (atera( carti(a0es continuous 1ith the carti(a0inous septu.

The (obu(e o* the nose is *ored ost(y

by the (o1er (atera( carti(a0es, 1hichconsist o* a edia( and (atera( crus.

There are severa( sa(( carti(a0es 1ithinthe nasa( a(a.

The chie* arteria( supp(y o* the nose is *rothe *acia( artery throu0h the an0u(ar arteryand superior (abia( arteries. 6enousdraina0e is sii(ar, 1ith a coponent


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Nasal Cavity

7 nasa( *ossae

asa( septu nasa( septa( carti(a0e,nasa( crest o* the a4i((a, nasa( crest o*the pa(atine bone, the voer, and theperpendicu(ar p(ate o* the ethoid bone.

The (atera( nasa( 1a(( nasa( turbinates

The eatus are situated be(o1 thecorrespondin0 turbinates


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Lateral nasal wall. #. *ronta( sinus8 2. idd(e nasa( concha8 %.idd(e nasa( eatus8 9. a00er nasi8 . atriu o* idd(e nasa(concha8 ;. (ien8 $. vestibu(e8


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Nasal septum. #, Perpendicu(ar p(ate8 !, cribri*or p(ate8 %,crista 0a((i8 9, *ronta( bone8 , nasa( bone8 ;, septa( carti(a0e8 $,edia( crus8


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Blood Supply of Nasal Cavity

The arteria( supp(y is *ro: 5nterna( carotid sources throu0h the anterior

and posterior ethoid arteries

+4terna( carotid source throu0h thesphenopa(atine artery.

The 0reater pa(atine vesse(s

The septa( branch o* the superior (abia( artery

These *or an iportant anastooticnet1or) in the anterior septu )no1n asthe Kiesselbach plexus, 1hich accounts*or ost noseb(eeds.


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Type of Paranasal Sinuses

?ronta( sinus

+thoid sinus

@a4i((ary sinus Sphenoid sinus


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Frontal Sinuses

Located in the *ronta( bone

5ts Boor *orin0 the edia( portion o* the orbita( roo*

Counded behind by the anterior crania( *ossa

5nBaations can 0ive rise to serious cop(icationsbecause o* its c(ose pro4iity to the orbit and crania(cavity Orbita( ce((u(itis

+pidura( or subdura( abscess

@enin0itis

T1o, three, or even ore *ronta( sinuses on a side havebeen reported, and soe persons have no *ronta( sinus.


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Ethm oid Sinuses

Pyraid-shaped and a (abyrinthine syste o* sa((,pneuati>ed sinus cavities that are separated *roone another by thin bony 1a((s

Superior and edia( to the a4i((ary sinus are theethoid air ce((s Anterior ethoid ce((s anterior and be(o1: open into the

in*undibu(u o* the idd(e eatus

Posterior ethoid ce((s posterior and above: into thesuperior eatus

They (ie on either side o* the superior ha(ves o* thenasa( cavities and are separated *ro the orbits bythe (ainae papyraceae.


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Sphenoid Sinuses

Located at the appro4iate center o* the s)u(( abovethe nasopharyn4.

Corders: 5ts posterior 1a(( is *ored by the c(ivus.

5t re(ates (atera((y to the cavernous sinus, the interna( carotidartery, and crania( nerves 55 65, and it is very c(ose(y re(atedto the optic cana(.The optic nerve and the interna( carotid artery ay run direct(y

beneath the ucosa o* the (atera( 1a(( o* the sphenoid sinus

Superior(y by the se((a tursica and pituitary The anterior and idd(e is crania( *ossae

The de0ree o* pneuati>ation o* the sphenoid sinusvaries an iportant *actor in sur0ica( approaches tothe pituitary 0(and.


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M axillary Sinuses

The (ar0est o* the paranasa( sinuses

Corder: The anterior 1a(( *ors the *acia( sur*ace o* the a4i((a

The posterios 1a(( borders the in*ratepora( *ossa The edia( 1a(( constitutes the (atera( 1a(( o* the nasa(

cavity

The Boor o* the sinus is the a(veo(ar process

The superior 1a(( serves as the orbita( Boor

The in*raorbita( nerve crosses the orbita( Boor toe4it the anterior portion o* the a4i((a via thein*raorbita( *oraen.


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raina!e of Paranasal Sinuses

@eatus superior Located be(o1 the superior turbinate and above the edia(

turbinate

Draina0e the posterior ethoid sinuses and sphenoid

sinus @eatus edia

Located bet1een the edia( turbinate and in*erior turbinate

Draina0e the *ronta( sinus, a4i((ary sinus, and anteriorethoid sinus

@eatus in*erior Situated be(o1 the in*erior turbinate

The bi00est eatus

An ori3ce o* the ipsi(atera( naso-(acria( duct.


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Paranasal sinuses. #, asa( septu8 !, *ronta( sinus8 %, nasa(cavities8 9, ethoida( ce((s8 , idd(e nasa( concha8 ;, idd(enasa( eatus8 $, a4i((ary sinus8


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"steom eatal Com plex

A sa(( constricted re0ion 1hich is prone toobstruction

'ontained in the idd(e third o* (atera( 1a(( o*

the nose, in the eatus edius, there ori3cechanne( o* a4i((aryy sinus, *ronta( sinus,anterior ethoid sinuses.

structures: @a4i((ary ostiu

5n*undibu(u

+thoida( bu((ae

ncinate process

Hiatus sei(unaris


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Physiolo!y of Paranasal

Sinuses Actin0 as resonatin0 chabers *or

the voice

@oisturi>e and huidi*y abient air Li0htenin0 the 1ei0ht o* the *acia(

s)e(eton


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Physiolo!y of the Nose and Paranasal Sinuses

/espiratory *unction airconditionin0

Se((in0 ?onetic *unction

Static and echanic *unction (i0htenin0 the 1ei0ht o* *acia(s)e(eton, protection

asa( reBe4


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Anatomy of the Nose At