sensory systems Flashcards
how do you treat retinopathy?
- laser surgery- prevent blood vessel changes
- injections - reduce swelling
what are causes of retinopathy?
- high blood sugar
- poorly managed diabetes
what is the external ear?
- involves pinna & ear canal
- collects sound waves & funnels them into ear canal
how do you treat sensorineural hearing loss?
- hearing aids
- cochlea implants
- auditory training- enhance hearing aid effectiveness
how do you monitor conductive hearing loss?
- regular hearing tests- ensure hearing abilities
- otoscopic tests- identify abnormalities or blockages
what is conductive hearing loss?
hearing loss results from
blockages or damage in outer or middle ear
what effects does cataracts have on individuals?
- blurred vision
- loss of visible colour
- blindness
how do you treat glaucoma?
- eye drops- reduce eye pressure
- laser therapy- unblocks ducts
- surgery- improve fluid drainage
what is the eustachian tube?
- narrow tube connecting middle ear to throat
- helps equalize air pressure on both sides of eardrum
what is the eardrum?
- membrane that vibrates when sound waves reach it
- vibrations transferred to ossicles in middle ear
what are the care needs for cataracts?
- protect eye from strain post-op
- mobility assisstance
- help with daily tasks
what effects does glaucoma have on individuals?
- gradual loss of peripheral vision
- low quality of life
- mobility issues
what effects does conductive hearing loss have on individuals?
- struggle with communication
- impact day-to-day tasks
what effects does retinopathy have on individuals?
- limited independence
- blurred vision
- limited work
what is glaucoma?
- pressure within eye due to fluid buildup
- due to improper drainage
- damages optic nerve
what are causes of AMD?
- aging
- smoking
- lifestyle factors
what are the causes of sensorineural hearing loss?
- aging
- loud noise exposure
- genetic illnesses
what is are the causes of cataracts?
primary- aging
secondary- smoking, diabetes, excessive sunlight
what is the ampullae?
- located within the semi-circular canals
- contain hair cells that detect rotational movements of head
what is the function of the macula?
- part of retina
- contains photoreceptor cells that help produce a detailed image
what are the semi-circular canals?
- needed for balance, keeping upright, orientation, detecting changes of speed, acceleration/deceleration
what is the function of the iris?
- coloured part of eye
- controls amount of light entering eye
what is retinopathy?
damaged blood vessels in the retina
what is the function of the humours?
- liquid that fills eye & helps to keep its shape
- protects the eye retina from shock
what is the inner ear?
- contains cochlear, vestibule & semi-circular canals
- processes sound vibrations
- sends auditory signals to brain while contributing to balance
what are the possible impacts of sensorineural hearing loss on lifestyle?
- loss of independence
- mental health issues
- reliant on family
what are the causes of glaucoma?
- genetics
- age
- high blood pressure
what is the function of the optic nerve?
- carries imag converted into electrical impulses to brain
how do you monitor cataracts?
- eye exams
- visual acuity tests
what are the care needs for AMD?
- meal prepration
- emotional support
- low vision aids
how do you treat conductive hearing loss?
- antibiotics- treat infections
- surgery- ossicle replacement
- wax buildup removed
how do you treat AMD?
- nutritional supplements- slow disease progression
- injections- slow growth of blood vessels
- laser treatment- destroys blood vessels
how do you monitor sensorineural hearing loss?
CT scans- monitor hearing function
how do you monitor retinopthy?
- regular eye screenings- monitor blood vessel changes
- imaging tests
what is the function of the cornea?
- transparent & convex in shape
- first part of eye that focuses light
what is the round window?
- opening covered by membrane
- allows movement of fluid in cochlea
what is the function of the sensory ligaments?
- connects lens to ciliary muscles
- when ciliary muscles contract, tenion released on sensory ligaments, allowing lens to become rounded
how do you monitor AMD?
- regular eye tests
- retinal imaging
- visual acuity tests
what is the function of the ciliary muscles?
- help change shap of lens
what is the middle ear?
- contains 3 small bones (ossicles)
- transmits sound vibrations from eardrum to inner ear
what is Age-Related Macular Degeneration (AMD)?
damage of the macula
what is cataracts?
proteins in the eye’s
lens clump together, clouding lens.
what is the function of the conjunctiva?
- forms thin layer of protective membrane covering front of eye & lines inside of eyelids
what are the care needs for glaucoma?
- help with mobility
- low vision aids
- transportation assistance
what is the organ of corti?
- Found in the cochlea
- contains rows of hair cells
what is the function of the retina?
- lining of back of eye
- contains cells sensitive to light
how do you monitor glaucoma?
- regular eye checks
- optic nerve assessments
- visual field tests
what effects does AMD have on individuals?
- blurred central vision
- impact day-to-day life
- reduced independence
what are the care needs for conductive hearing loss?
- communication aids- hearing aids
- speech therpy
- counseling
what are the care needs for sensorineural hearing loss?
- speech therapy
- amplified phones
- emotional support
what is the function of the tear glands?
produce liquid to moisten surface of eye
how do you treat cataracts?
- stronger glasses lenses- makes text clearer
- surgery- remove clouded lens & replace with artificial lens
what are the malleus, incus & stapes ear bones?
- amplify & transmit vibrations from eardrum to inner ear via oval window
what effects does sensorineural hearing loss?
- isolation
- hearing struggles
what is the auditory nerve?
- transmits electrical signals from cochlea to brain
what is the function of the pupil?
- opening in middle of eye
- light passes through after entering through cornea
what is sensorineural hearing loss?
damage to the inner ear or auditory nerve
what is the function of the lens?
- transparent flexible structure
- focuses light onto retina, enabling clear vision
- changes shape to adjust focus
what are the care needs for retinopathy?
- education on blood glucose management
- appointment support
- assistance with daily tasks
what are the causes of conductive hearing loss?
- earwax buildup
- fluid in middle ear
- abnormal bone growths
what is the cochlea?
- spiral-shaped, fluid-filled structure
- converts vibrations into neural signals
- stimulating hair cells that generate nerve impulses
