2.  The skin and sense organs receive messages (touch sensations, light waves, sound waves) from the environment and send them to the brain via nerves.  These messages are interpreted in the brain, making sight, hearing, and perception of the environment possible.

6. COMBINING FORM MEANIGEXAMPLES Aur/oearAural discharge Ot/oearotitis Cutane/oskinsubcutaneo us Derm/oskinepidermis Dermat/oskindermatolog y

7. COMBINING FORM MEANINGEXAMPLES Myring/oeardrummyringotomy Tympan/oeardrumtympanoplast y Ocul/oeyeocular Onych/onailonycholysis Ophthal/oeyeophthalmosc ope Phak/oLens of the eye aphakia

8. COMBINING FORMMEANINGEXAMPLES Pil/ohairpilosebace ous Retin/oretinaretinopath y Trich/ohairtrichophag ia Ungu/onailsubungual

9.  Alopecia  Conjunctivitis  Glaucoma  Melanoma  Nevus  Sty (stye)  tinnitus

11. Alopecia means loss of hair from the head or body.

12.  is swelling (inflammation) or infection of the membrane lining the eyelids (conjunctiva).

13.  A cataract is a cloudy or opaque area in the normally clear lens of the eye.

14.  Glaucoma refers to a group of eye conditions that lead to damage to the optic nerve, the nerve that carries visual information from the eye to the brain.  In many cases, damage to the optic nerve is due to increased pressure in the eye, also known as intraocular pressure (IOP).

15.  Nevus is the medical term for sharply- circumscribed and chronic lesions of the skin. These lesions are commonly named birthmarks and moles.

17.  A stye is an inflamed oil gland on the edge of your eyelid, where the lash meets the lid. It appears as a red, swollen bump that looks like a pimple.

19.  Hypermetropia: In a hypermetropic eye, the light is not bent sufficiently so that it focuses at a point behind the retina. Here a person sees well for distance but near vision is difficult and causes strain. Hence hypermetropic people are called long- sighted.

20.  Myopia: Nearsightedness, or myopia, as it is medically termed, is a vision condition in which close objects are seen clearly, but objects farther away appear blurred.  Presbyopia: is a condition in which the lens of the eye loses its ability to focus, making it difficult to see objects up close.

21.  ALLERGY TEST  BACTERIAL AND FUNGAL TESTS  FLUORESCEIN ANGIOGRAPHY  OPHTHALMOSCOPY

23.  SKIN BIOPSY  TUNING FORK TEST  OTOSCOPY

26.  AD ( latin, auris dexter)  AS ( latin, auris sinister)  ENT  HEENT  OD ( latin, oculus dexter)  OS ( latin, oculus sinister)  VA  VF