1 / 28

Week 15-16 Overview

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. SPECIAL SENSES. The Eye/Parts of the Eye. Sclera- sclero- the white of the eye- outer covering of the eye

erno
Download Presentation

Week 15-16 Overview

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 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

  2. SPECIAL SENSES

  3. 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

  4. 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

  5. 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

  6. Eye lids- blepharo • Lacrimal glands- dacryo • Lacrimal canliculi

  7. Disorders/Pathology of the Eye • Errors of refraction • Myopia- nearsightedness • Hyperopia- farsightedness • Astigmatism- the light rays are bent unequally causing blurred vision

  8. Cataracts- • A clouding of the lens • Glaucoma • A build up of pressure from aqueous humor • Strabismus- lazy eye; The muscle is weak

  9. More Pathology • Conjunctivitis- inflammation of the lining of the eye- pinkeye • Achromatopsia- color blindness • Presbyopia- old age vision • Nyctalopia- night vision

  10. Procedures • Visual acuity test- Snellen Chart • Tests vision • Evisceration • Partial or all removal of an eye • Retinoscopy Visual examination of the retina • Gonioscopy Visually examining for pressure

  11. The Ear

  12. Major Sections • External • Auricle or Pinna • Ear Canal • Tympanum

  13. Middle Ear • Tympanic Cavity • Malleus- hammer • Incus- anvil • Stapes- stirrup • Eustachian Tube

  14. Inner Ear • Labyrinth • Oval window- • Cochlea- • Semicircular canals • Vestibule • Auditory nerve

  15. Disorders of the Ear • Otitis Media • Inflammation of the middle ear • Otosclerosis • Hardening of the ossicles (bones) • Meniere’s Disease • A 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

  16. Procedures • Otoscopy • Audiometry • Myringotomy • otoplasty

  17. 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

  18. Medications • Antibiotics- anti-infectives • Miotics/cholinergics- constrict • Mydriatics- dilate • Saline solution- moisten

  19. SPECIAL SENSES: THE EYES AND EARS ELEMENTS • (use with your textbook for CD-Rom) • ElementsMeaning • aden/o gland • aque/o, hydr/o water • ambly/o dim, dull • audi/o hearing • blephar/o eyelid • choroid/o choroid • conjunctiv/o conjunctiva • dacry/o tear, lacrimal • dipl/o double • irid/o iris • kerat/o cornea

  20. ELEMENT MEANING • myc/o fungus • myring/o, tympan/o tympanic membrane • ocul/o, ophthalm/o, opt/o eye • ot/o ear • presby/o old age • py/o pus • retin/o retina • salping/o eustachian tube or fallopian tube • sclera/o hardening, sclera (white of the eye) • xanth/o yellow • -cusia hearing • -ectomy excision, removal • -edema swelling • -ia noun ending • -itis inflammation • -malacia softening

  21. 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 outside • hyper- excessive • intra- within

  22. Special Senses Worksheets • pages 132-135 • Medication Review page • 136 syllabus

  23. Review for the Final Pages 137-140

  24. Homework • Study for Final Exam

More Related