Business 86, Medical Terminology

Week 15-16 Overview

Project Due Chapter 15 pages 466-489-lecture

and review of pages 127-135 oral practice, medications review, review for final, oral practice and Homework

Business 86, Medical Terminology

SPECIAL SENSES

Business 86, Medical Terminology

The Eye/Parts of the Eye

Sclera- sclero- the white of the eye- outer covering of the eye

Choroid- choroido- Vascular layer- middle layer-of the eye lying between the retina and the sclera

Retina- inner lining of the eye, light-sensitive tissue at the back of the eye that transmits visual impulses via the optic nerve to the brain

Cornea- kerato- The clear part of the eye located in front of the iris. Part of the eye’s protective covering

Business 86, Medical Terminology

Business 86, Medical Terminology

Business 86, Medical Terminology

Aqueous Humor- watery fluid that fills the anterior and posterior chambers of the eye

Anterior chamber- Part of the eye behind the cornea and in front of the iris and lens

Posterior chamber- space between the iris and the lens

Business 86, Medical Terminology

Iris- irido- a muscle that allows light rays in and it determines the color of the eye

Pupil- a hole Lens-located behind the iris, helps light focus onto

the retina Ciliary muscles- the muscle that helps the lens to

change shape Vitreous humor-transparent mass of gel that lies

behind the lens and in front of the retina. It fills the center of the eye

Optic nerve- nerve in the back of the eye that carries visual images to the brain

Optic disc- blind spot- the area where the optic nerve connects to the retina

Muscles- allows movement of the eye

Business 86, Medical Terminology

Eye lids- blepharo

Lacrimal glands- dacryo

Lacrimal canliculi

Business 86, Medical Terminology

Business 86, Medical Terminology

Disorders/Pathology of the Eye

Errors of refractionMyopia- nearsightedness

Hyperopia- farsightedness

Astigmatism- the light rays are bent unequally causing blurred vision

Business 86, Medical Terminology

Cataracts-

A clouding of the lens

Glaucoma

A build up of pressure from aqueous humor

Strabismus- lazy eye; The muscle is weak

Business 86, Medical Terminology

More Pathology

Conjunctivitis- inflammation of the lining of the eye- pinkeye

Achromatopsia- color blindness

Presbyopia- old age vision

Nyctalopia- night vision

Business 86, Medical Terminology

Business 86, Medical Terminology

Procedures

Visual acuity test- Snellen Chart Tests visionEvisceration Partial or all removal of an eye

Retinoscopy Visual examination of the retinaGonioscopy Visually examining for pressure

Business 86, Medical Terminology

The Ear

Business 86, Medical Terminology

Major Sections

External

Auricle or Pinna

Ear Canal

Tympanum

Business 86, Medical Terminology

Middle EarTympanic Cavity

Malleus- hammer

Incus- anvil

Stapes- stirrup

Eustachian Tube

Business 86, Medical Terminology

Inner Ear

Labyrinth

Oval window-

Cochlea-

Semicircular canals

Vestibule

Auditory nerve

Business 86, Medical Terminology

Disorders of the Ear

Otitis MediaInflammation of the middle ear

OtosclerosisHardening of the ossicles (bones)

Meniere’s DiseaseA balance disorder of the inner ear, causing pressure in one or both ears, hearing loss, tinnitus (ringing in the ears), nausea and vomiting, nystagmus (uncontrolled jerky eye movements)

Vertigo-Abnormal sensation of movement

Business 86, Medical Terminology

Procedures

Otoscopy

Audiometry

Myringotomy

otoplasty

Business 86, Medical Terminology

Abbreviations

AD- right ear OD- right eye

AS-left ear OS- left eye

ENT- ears nose OU- both eyes

and throat

EOM- extra ocular REM- rapid eye

movement movement

Business 86, Medical Terminology

Medications

Antibiotics- anti-infectivesMiotics/cholinergics- constrictMydriatics- dilateSaline solution- moisten

Business 86, Medical Terminology

SPECIAL SENSES: THE EYES AND EARS ELEMENTS (use with your textbook for CD-Rom) Elements Meaningaden/o glandaque/o, hydr/o waterambly/o dim, dullaudi/o hearingblephar/o eyelidchoroid/o choroidconjunctiv/o conjunctivadacry/o tear, lacrimaldipl/o doubleirid/o iriskerat/o cornea

Business 86, Medical Terminology

ELEMENT MEANING

myc/o fungusmyring/o, tympan/o tympanic membraneocul/o, ophthalm/o, opt/o eyeot/o earpresby/o old agepy/o pusretin/o retinasalping/o eustachian tube or fallopian tubesclera/o hardening, sclera (white of the eye)xanth/o yellow-cusia hearing-ectomy excision, removal-edema swelling-ia noun ending-itis inflammation-malacia softening

Business 86, Medical Terminology

ELEMENT MEANING

-opia, -opsia vision-pathy disease-ptosis prolapse, falling, dropping-rrhaphy suture-rrhexis rupture-spasm involuntary contraction, twitching-stenosis stricture, narrowing-tomy incision, cut into-tropia turning-extra outsidehyper- excessiveintra- within

Business 86, Medical Terminology

Special Senses Worksheets

pages 132-135

Medication Review page

136 syllabus

Business 86, Medical Terminology

Review for the Final

Pages 137-140

Business 86, Medical Terminology

Homework

Study for Final Exam