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Ch17-Sense Organs
The Language of Medicine 11th Edition
| Question | Answer |
|---|---|
| Region at the back of the eye where the optic nerve meets the retina: | optic disc |
| Yellowish region in the retina; contains the fovea centralis: | macula |
| Light-sensitive nerve cell layer of the eye containing photoreceptor cells: | retina |
| Central opening of the eye, surrounded by the iris, through which light rays pass: | pupil |
| Tough, white outer coat of the eyeball: | sclera |
| Photoreceptor cell responsible for color and central vision located in the retina that transforms light energy into nerve impulses: | cone |
| Delicate membrane lining the undersurface of the eyelids and covering the anterior eyeball: | conjunctiva |
| Pigmented layer that opens and closes to allow more or less light into the eye: | iris |
| Fibrous transparent layer of clear tissue that extends over the anterior portion of the eyeball: | cornea |
| Sensitive receptor cells of the retina that function at reduced levels of light and are responsible for peripheral vision: | rods |
| The meaning of the suffix -opia: | vision |
| The combining form that means eyelid: | palpebr/o |
| What is the meaning of the combining form phak/o? | lens of the eye |
| The combining form that means tears: | lacrim/o |
| The combining form that means tears or tear duct: | dacry/o |
| Another combining form besides pupill/o that can be used for pupil: | cor/o |
| What is the combining form for eyelid? | blephar/o |
| What is the meaning of the combining form phot/o? | ight |
| What is the meaning of the combining form kerat/o? | cornea |
| The meaning of the combining form opt/o: | eye, vision |
| What is the name given to the maze-like series of canals of the inner ear? | labyrinth |
| Membrane between the middle ear and the inner ear: | oval window |
| The projecting part, or flap, of the ear: | auricle |
| Waxy substance secreted by the external ear: | cerumen |
| Snail shell-shaped, spirally wound tube in the inner ear that contains hearing-sensitive receptor cells: | cochlea |
| Another name for the tympanic membrane: | eardrum |
| The three small bones that are the ossicles: | incus, malleus, stapes |
| Passages in the inner ear associated with maintaining equilibrium: | semicircular canals |
| Central cavity of the labyrinth that connects the cochlea to the semicircular canals for equilibrium: | vestibule |
| Sensitive auditory receptor area found in the cochlea of the inner ear: | organ of Corti |
| The meaning of the combining form acous/o | hearing |
| A combining form for ear: | aur/o |
| What is the combining form for eustachian tube? | salping/o |
| The combining form for the three small bones of the middle ear: | ossicul/o |
| The meaning of the combining form myring/o: | eardrum |
| The meaning of the combining form ot/o: | ear |
| Meaning of the suffix -acusis: | hearing |
| The combining form for the third bone of the middle ear: | staped/o |
| Meaning of the suffix -otia: | ear condition |
| Meaning of the suffix -meter: | instrument to measure |
| Which term means dull or dim vision (also known as lazy eye)? | amblyopia |
| Papilledema means there is swelling or associated intracranial pressure and hyperemia in what area? | optic disc |
| Inflammation of the lacrimal gland and lacrimal ducts: | dacryoadenitis |
| The combining form used in the term "postauricular" means: | ear |
| Charted results of a hearing test: | audiogram |
| Medical doctor who specializes in treating disorders of the eye: | ophthalmologist |
| Blepharoptosis refers to drooping of what part of the eye? | eyelid |
| Double vision is called: | diplopia |
| Surgical reconstruction of the bones of the middle ear with reconnection of the eardrum to the oval window: | tympanoplasty |
| Absence of vision in half of the visual field: | hemianopsia |
| Charted results of a hearing test: | audiogram |
| Medical doctor who specializes in treating disorders of the eye: | ophthalmologist |
| Blepharoptosis refers to drooping of what part of the eye? | eyelid |
| Double vision is called: | diplopia |
| Surgical reconstruction of the bones of the middle ear with reconnection of the eardrum to the oval window: | tympanoplasty |
| Absence of vision in half of the visual field: | hemianopsia |
| Impairment of vision as a result of old age: | presbyopia |
| A failure of the eyes to look in the same direction because of weakness of a muscle controlling the position of one eye: | strabismus |
| Collection of skin cells and cholesterol in a sac within the middle ear: | cholesteatoma |
| Farsightedness: | hyperopia |
| Small, hard, cystic mass on the eyelid: | chalazion |
| Defective curvature of the cornea or lens of the eye: | astigmatism |
| Hardening of the bony tissue of the middle ear: | otosclerosis |
| Damage to the retina and optic nerve with loss of vision due to increased intraocular pressure: | glaucoma |
| Repetitive rhythmic movements of one or both eyes: | nystagmus |
| Benign tumor arising from the acoustic vestibulocochlear nerve in the brain: | acoustic neuroma |
| Removal of the entire eyeball: | enucleation |
| What is a visual examination of the interior of the eye called? | ophthalmoscopy |
| Surgical repair of the cornea: | keratoplasty |
| Removal of the vitreous humor: | vitrectomy |
| Use of an excimer laser to correct errors of refraction: | LASIK |
| Testing the sense of hearing: | audiometry |
| Visual examination of the ear canal with an otoscope: | otoscopy |
| Use of ultrasonic vibrations to break up the lens, which is then aspirated through the ultrasonic probe: | phacoemulsification |
| Suture of a silicone band to the sclera over a detached portion of the retina: | scleral buckle |
| Test of ear conduction using a vibration source: | tuning fork test |
| Consisting of two surfaces that are rounded, elevated, and curved evely like part of a sphere. | Biconvex |
| tiny pit, or depression in the retina that is the region of the clearest vision. | Fovea Centralis |
| Posterior, inner most part of the eye; visualized with an opthalmoscope | fundus of the eye |
| Yellowish region on the Retina lateral to and slightly below the optic disc, contains the fovea centralis, which is the area of the clearist vision. | Macula |
| Cranial Nerve carrying impulses from the retina to the brain (cerebral cortex) | Optic Nerve |
| Nearsightedness | Myopia |
| Farsightedness | Hyperopia |
| Impairment of vision as a result of old age | presbyopia |
| Small, hard, cystic mass (granuloma) on the eyelid | chalazion |
| repetitive rhythmic movement of both eyes | nystagmus |
| abnormal deviation of the eye | strabismus |
| Eye turns inwards (cross eyed) | esotropia |
| one eye turns outward (wall eyed) | exotropia |
| Upward deviation of the eye | hypertropia |
| downward deviation of the eye | hypotropia |
| surgical repair of the cornea | keratoplasty |
| Eardrum | Tympanic Membrane |
| Ear Wax | cerumen |
| Inner Ear | Labyrinth |
| Carry impulses from the inner ear to the brain (crebral cortex) | Auditory Nerve Fibers |
| Fluid within the labrynth of the ear | endolymph |
| Sensitive auditory receptor area found in the cochlea of the inner ear | Organ of Corti |
| Small bone in the ear, includes the malleus, incus, and stapes | Ossicle |
| Helps maintiain equilibreum | vestibule |
| Hardening of the bony tussue of the middle ear | otosclerosis |
| Benign tumor arising from the acoustic vestibulocochlear nerve in the brain | acoustic neuroma |
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