Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| The five senses | Pain
Touch
Pressure
Temperature
Proprioception
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| Proprioception | Awareness of body position
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| The special senses | Gustation (taste)
Olfaction (smell)
Hearing
Equilibrium
Vision
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| Sensory receptor | Sensory nerve ending that responds to a stimulus
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| What is the function of the sensory system? | Maintain homeostasis
Provide pleasure
Protection from harm
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| -esthesia | Sensation
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| -osmia | Smell
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| -geusia | Taste
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| The ear is responsible for? | Hearing and equilibrium
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| Parts of the outer ear | Pinna (actual ear)
External auditory canal
Tympanic membrane (eardrum)
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| Tympanic membrane | Transmits sound waves to the middle ear; eardrum
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| Cerumen | Earwax; protects ear and prevents infection
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| Ossicles(bones) of middle ear | Malleus, incus, stapes
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| Auditory tube | Eustachion tube; connects middle ear with nasopharynx and equalizes pressure in the ear
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| Inner ear | Labyrinth; filled with fluid
Cochlea
Vestibular apparatus
Semicircular canals
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| Cochlea | Coiled part of the inner ear; sound vibrations convert into nerve impulse
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| Spiral organ | Transfers vibrations from cochlear duct and sends to auditory nerve
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| Vestibular apparatus | Sense of equilibrium; consists of vestibule and semicircular canals
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| Vestibulocochlear nerve | 8th cranial nerve, auditory nerve
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| Pinna/ auricle | Captures sound waves; ear part of the ear
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| Vestibule | Liquid filled chamber; aids in equilibrium
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| Audi/o | Hearing
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| Acous, acus, cus | Sound, hearing
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| Myring/o | Tympanic membrane
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| Tympan/o | Tympanic membrane
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| Salping/o | Tube, eustachian tube
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| Staped/o | Stapes
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| Sensorineural hearing loss | Results from damage to inner ear, cranial nerve or auditory pathways
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| Conductive hearing loss | Results from blockage in sound transmission
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| Otitis media | Fluid accumulation in the middle ear
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| Otomycosis | Fungal infection of the ear
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| Meniere disease | Excess fluid pressure in the inner ear
Hearing loss, vertigo, tinittus, and a feeling of pressure
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| Acoustic neuroma | Tumor that arises from the sheath of the 8th cranial nerve
Tinnitus, vertigo and hearing loss
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| Tinnitus | Ringing in the ears
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| Vertigo | Dizziness
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| Myringotomy | Incision of the tympanic membrane
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| Aural | Pertaining to the ear
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| Decibel | Measuring the intensity of sound
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| Mastoid process | Projection of temporal bone
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| Cholesteatoma | Mass containing cholesterol in middle ear or mastoid region
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| Presbycusis | Loss of hearing due to aging presbyacusis
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| Otorhinolaryngeology | Study of ears nose and throat
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| Orbit | Bony socket that protects the eye
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| Palpebrae | Eyelids
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| Lacrimal gland | Tear gland
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| Conjunctiva | Thin membrane that lines the eyelids
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| Sclera | White of the eye, outermost protective layer
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| Uvea | Middle layer; consists of choriod, ciliary body, and iris
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| Choroid | Pigmented layer that nourishes the retina
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| Ciliary body | Controls the shape of the lens to allow for near and far vision
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| Accomodation | Adjustment of the lens to allow for near and far vision
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| Iris | Muscular ring that dilates with low light and constricts with bright light in the pupil
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| Retina | Innermost layer, receptor for vision, contains rods and cones
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| Refraction | Bending of light rays
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| Optic disk | Optic nerve joins the retina; blind spot
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| Fovea | Point of greatest visual accuity
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| Vitreous body | Maintains shape of eye and refract light; fills the eyeballs cavity
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| Aqueous humor | Fluid that fills the eye
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| Convergence | Both eyes fixate on the same point
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| Cone | Responds to bright light and color
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| Rod | Responds to low light and do not respond to color
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| Córnea | Clear part of the sclera in front of the eye
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| Macula | Small spot or colored area
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| Visual accuity | Sharpness of vision
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| Blephar/o | Eyelid
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| Palpebr/o | Eyelid
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| Dacry/o | Tear, tear duct
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| Dacryocyst/o | Lacrimal sac
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| Lacrim/o | Tear duct
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| Kerat/o | Cornea
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| Lent/i | Lens
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| Phak/o, phac/o | Lens
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| Cycl/o | Ciliary body
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| -opsia | Vision condition
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| -opia | Vision, condition of the eye
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| Macular degeneration | Deterioration of the macula
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| Astigmatism | Córnea or lens is curved wrong
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| Cataract | Cloudiness of the lens
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| Conjunctivitis | Pink eye
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| Diabetic retinopathy | Changes in the retina cause by DM
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| Glaucoma | Increased pressure in the eye, caused by blockage
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| Hyperopia | Farsightedness
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| Myopia | Nearsightedness
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| Presbyopia | Farsightedness caused by age
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| Retinal detachment | Retina detaches from choroid
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| Amblyopia | One eye does not work as well as the other
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| Blepharoptsis | Drooping of the eye
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| Chlazion | Mass on the eyelid
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| Floater | Small moving object in the field of vision
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| Miosis | Abnormal contraction of the pupils
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| Mydriasis | Abnormal dilation of the eye
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| Nystagmus | Rapid involuntary movements of the eye
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| Papilledema | Swelling of the optic disk
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| Strabismus | One eye is looking somewhere else
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| Enucleation | Surgical removal of the eye ball
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| Mydriatic | Drug that causes dilation of the pupil
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