the special senses dr. walid daoud assistant professor

The Special SensesThe Special Senses

Dr. Walid DaoudDr. Walid Daoud

Assistant ProfessorAssistant Professor

The Special SensesThe Special Senses

They are highly specialized sense They are highly specialized sense organsorgans::

11 - -VisionVision..

22 - -HearingHearing..

33 - -TasteTaste..

44 - -OlfactionOlfaction..

55 - -TouchTouch

Anatomy of The EyeAnatomy of The EyeThe eye is the sense organ of visionThe eye is the sense organ of vision..

A globe-shape organ (3 layers)A globe-shape organ (3 layers)::

- -Sclera: Sclera: outermost fibrous layeroutermost fibrous layer..

- -Choroid: Choroid: middle layer vascular layermiddle layer vascular layer..- - -Retina: Retina: innermost layer nervous layerinnermost layer nervous layer..

Anatomy of The EyeAnatomy of The Eye

- -Cornea. - Ciliary muscleCornea. - Ciliary muscle..

- -Aqueous humor. - Vitreous humorAqueous humor. - Vitreous humor..

- -Anterior chamber. - Optic nerveAnterior chamber. - Optic nerve..

- -Posterior chamber. - Optic discPosterior chamber. - Optic disc..

- -IrisIris . .

- -PupilPupil..

- -LensLens..

The Front of The EyeThe Front of The Eye

11 - -Eye lidsEye lids..

22 - -Lacrimal glandsLacrimal glands..

33 - -CanthiCanthi..

44 - -Lacrimal canaliculiLacrimal canaliculi..

Anatomy of The EarAnatomy of The EarThe ear is the sense organ of hearingThe ear is the sense organ of hearing..

11 - -External earExternal ear:: . .Auricle or ear pinnaAuricle or ear pinna..

. . Ear canalEar canal.. . . Tympanic membrane or ear drumTympanic membrane or ear drum..

22 - -Middle earMiddle ear:: . .33 ossicles: malleus, incus and stapesossicles: malleus, incus and stapes..

33 - -Inner earInner ear:: . . Cochlea, semicircular canal, vestibuleCochlea, semicircular canal, vestibule..

Disorders of The EyeDisorders of The Eye

Errors of refraction (ametropia)Errors of refraction (ametropia)::

11 - -MyopiaMyopia..

22 - -HypermetropiaHypermetropia..

33 - -AstigmatismAstigmatism..


CataractsCataracts

Cataract is an opacity that forms on the lens Cataract is an opacity that forms on the lens or its capsule leading to loss of visionor its capsule leading to loss of vision..

Cataract removal either byCataract removal either by : :

11 - -CryoextractionCryoextraction..

Or 2- Intracapsular cataract extractionOr 2- Intracapsular cataract extraction . .


GlaucomaGlaucomaGlaucoma is an increase in the intraocular Glaucoma is an increase in the intraocular pressure due to atrophy of optic nerve and pressure due to atrophy of optic nerve and may result in blindnessmay result in blindness..TreatmentTreatment::

- -MioticsMiotics.. - -Surgery: paracentesis of the corneaSurgery: paracentesis of the cornea..

partial iridectomypartial iridectomy iridodialysisiridodialysis . .


StrabismusStrabismus

The eyes turn from the normal position The eyes turn from the normal position and are not aimed in the same directionand are not aimed in the same direction..

- -ExotropiaExotropia..

- -EsotropiaEsotropia..

Disorders of The EarDisorders of The Ear

Otitis MediaOtitis Media

It is infection of the middle earIt is infection of the middle ear::

- -OtodyniaOtodynia..

- -OtopyorrheaOtopyorrhea..

- -MyringorrhexisMyringorrhexis..

Treatment is by analgesics, antibiotics or Treatment is by analgesics, antibiotics or myrigotomymyrigotomy..

Disorders of The EarDisorders of The Ear

OtosclerosisOtosclerosis

It is hardening of spongy bone around the It is hardening of spongy bone around the oval window and the stapes is unable to oval window and the stapes is unable to move the oval window (ankylosis) move the oval window (ankylosis) causing hearing losscausing hearing loss..

Treated by stapedectomyTreated by stapedectomy..

WR/CF Related To The EyeWR/CF Related To The Eye

WR/CFWR/CFMeaningMeaningExampleExample

ambly/oambly/o

aque/oaque/o

blephar/oblephar/o

chroid/ochroid/o

cycl/ocycl/o

dacry/odacry/o

dacryoaden/odacryoaden/o

emmetr/oemmetr/o

dull or dimdull or dim

waterwater

eyelideyelid

choroidchoroid

ciliary bodyciliary body

teartear

tear glandtear gland

correctcorrect

amblyambly/opia/opia

aqueaque/ous/ous

blepharblephar/edema/edema

chroidchroid/it is/it is

cyclcycl/o/dialysis/o/dialysis

dacrydacry/o/rrhea/o/rrhea

dacryoadenodacryoadeno/ectomy/ectomy

emmetremmetr/opia/opia

WR/CF Related To The EyeWR/CF Related To The Eye


irid/oirid/o

kerat/okerat/o

lacrim/olacrim/o

opthalm/oopthalm/o

pupll/opupll/o

retin/oretin/o

scler/oscler/o

vitre/ovitre/o

irisiris

corneacornea

lacrimal ductlacrimal duct

eyeeye

pupilpupil

retinaretina

sclera, hardsclera, hard

vitreous humorvitreous humor

iridirid/ectomy/ectomy

keratkerat/o/cele/o/cele

lacrimlacrim/a/tion/a/tion

opthalmopthalm/o/logist/o/logist

pupillpupill/o/meter/o/meter

retinretin/al/al

sclerscler/it is/it is

vitrevitre/ous/ous

WR/CF Related To The EarWR/CF Related To The Ear


audi/oaudi/o

labyrinth/olabyrinth/o

mastoid/omastoid/o

ot/oot/o

presby/opresby/o

salping/osalping/o

staped/ostaped/o

myring/omyring/o

hearinghearing

Inner earInner ear

mastoid processmastoid process

earear

old ageold age

Eustachian tubeEustachian tube,,

oviductoviduct

stapesstapes

ear drumear drum

audiaudi/o/meter/o/meter

labyrinthlabyrinth/itis/itis

mastoidmastoid/itis/itis

otot/o/scope/o/scope

presbypresby/cusis/cusis

salpingsalping/itis/itis

stapedstaped/ectomy/ectomy

tympantympan/o/plasty/o/plasty

Suffixes Related To The EyeSuffixes Related To The Eye

SuffixSuffixMeaningMeaningExampleExample

--opiaopia

--o/tropiao/tropia

opsiopsi--

visionvision

turningturning

visionvision

emmetr/emmetr/opiaopia

ex/o/ex/o/tropiatropia

heter/heter/opsiaopsia

Suffixes Related To The EarSuffixes Related To The Ear

SuffixSuffixMeaningMeaningExampleExample

--cusiscusis

--o/mycosiso/mycosis

o/pyorrheao/pyorrhea--

hearinghearing

fungal infectionfungal infection

purulent (pus) purulent (pus) dischargedischarge

ana/ana/cusiscusis

ot/o/ot/o/mycosismycosis

ot/o/ot/o/pyorrheapyorrhea

Surgical and Other Terms Surgical and Other Terms Related To The Special SensesRelated To The Special Senses

Page 310 - 313Page 310 - 313

Answer Worksheets 1-6Answer Worksheets 1-6

Page 314 - 323Page 314 - 323

the special senses dr. walid daoud assistant professor

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