| A | B |
|---|
| Meibomian Gland | Modified oil secreating sebaceous glands on eyelids |
| Ciliary Gland | Modified sweat glands |
| Pupil | Whole in eye |
| Lacrimal apparatus | make tears |
| Lacrimal ducts and canals | Connect eye to nose |
| Lacrimal secretions | tears |
| Tears | contain antibodies and lysozyme to kill pathogens |
| pathogens | disease causing agent |
| Number of muscles that move the eye | 6 rectus muscles |
| Sclera | White of the eye |
| Cornea | Clear part covering eye |
| Iris | Controls pupil size and adds color to eye |
| Ciliary body | Holds lens in place. With suspensory ligaments controls lens shape |
| Lens | Focuses light on the fovia centralis |
| Aqueous Humor | From cornea to lens travels through canal of schlemm |
| Clogged cannal of schelmm | Glaucomma |
| Vitreous Humor | Fills eye behind the lens |
| Floaters | Crystalized vitreous humor |
| Retina | contains photoreceptors |
| Photoreceptors | rods and cones |
| Rods | Black and white many connect to one nerve. Blurry edges |
| Cones | Color; each connects to a nerve. Crisp edges |
| Mostly at the fovea centralis | Cones |
| Mostly on periferal | Rods |
| Choroid coat | Dark light absorbing layer |
| Sclera | Thick "hard" white layer coating most of eye |
| Worst vision | blind spot |
| Lateral to blind spot only cones | Spot of best vision; fovea centralis |
| Types of cones? | Blue see blue light, green see green light, red see green and red light |
| colorblindness | lack of one or more types of cones. Sex linked trait. (men get it more) |
| Type of vision correction where a laser reshapes the cornea | LASIK's |
| External most part of ear | Auricle or Pina |
| Ear drum | Tympanic membrane |
| Parts of External ear | Auricle and External auditory canal |
| Parts of Middle ear | Tympanic membrane, ossicles, Eustacian canal |
| Ossicles are ... | Malleus, Incus, and Stapes...smallest bones in the body |
| If your ears need to "pop" you must | force air into the Eustacian canal from the throat to the ear |
| Parts of the Inner ear | Chochlea and Semicircular canals |
| part of the Inner ear used for hearing | Chochlea |
| Part of the Inner ear used for balance | Semicircular canals |
| Contains otoliths which press down in the dirrection of gravity | Semicircular canals |
| Conatins steriocillia with bend with sound vibrations | Chochlea |
| Uses Olfactory Receptors | Nose for sense of smell |
| Olfactory Hairs must be coated in _________ in order to smell | Mucus |
| Olfactory nerve in the nose connects to the | Olfactory bulb of the brain |
| Why is smell so emotional? | It goes directly to the limbic system (emotional system for the brain) |
| Where is smell stored? | Temporal lobe |
| Anosmias | Loss of smell due to injury, inflamation (cold), or age |
| Sometimes epilepsy has a warning before seizures occur with.... | Olfactory auras |
| Cataracts | Clouding of the lens |
| Papillae | Bumps on tongue that contain taste buds |
| Taste buds | Receptors for taste include the taste hairs |
| Gustatory cells | In taste bud respond to chemicals that are dissolved in saliva. |
| What effects your perception of taste? | temp, smell, texture, and genetics |
| OH- groups | sweet, sugar |
| H+ | Sour, acidic |
| very few H+ | bitter, alkaloid bases |
| Metal Ions | Salty |
| What can we taste? | Sweet, Sour, Salty, Bitter, & Eumame |
| Astigmatism | Warped cornea |
