A&P Vestibular Sys
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| Bony Labyrinth: _______ = high Na/ low K | Perilymph
🗑
|
||||
| Membranous Labyrinth: ________ = high K/ low Na | Endolymph
🗑
|
||||
| _____ cells = receptors of labyrinth | Hair
🗑
|
||||
| movement of hair bundle and gel --> electrical response --> excitatory --> increase or decrease in firing of ____ | CN VIII
🗑
|
||||
| _____ division conveys information about sound | Cochlea
🗑
|
||||
| the 3 general layers of the Cochlea division are the _____, _____, and _____ | outer, middle, inner
🗑
|
||||
| sound vibrates ________ membrane --> middle ear ossicles --> perilymph --> resulting in changes in the basilar membrane .. organ of Corti | tympanic
🗑
|
||||
| types of hearing loss: ______ hearing loss = sound vibrations from the tympanic membrane to the inner ear are blocked | conductive
🗑
|
||||
| conductive hearing loss can be caused by ______ ____ in the auditory canal, _____ buildup in the middle ear, ____ ______, or abnormal _____ growth. | ear wax, fluid, ear infections, bone
🗑
|
||||
| types of hearing loss: ______ hearing loss = damage to the vestibulocochlear nerve. | sensorineural
🗑
|
||||
| sensorineural hearing loss can be caused by _____ injury, ____ defects, ____ or _____ | head, birth, HTN or stroke
🗑
|
||||
| _______ is hearing loss most commonly due to age related changes. | presbycusis
🗑
|
||||
| _______ is sensitivity to sound | hypercusis
🗑
|
||||
| _______ is abnormal sounds (e.g. ringing, buzzing, etc.) | tinnitus
🗑
|
||||
| the peripheral vestibular system has 5 sensory organs: 3 ______ and 2 _____ | semicircular canals, otoliths
🗑
|
||||
| Vestibular system: our _____ ear provide info about where we are in space - upright or leaning | inner
🗑
|
||||
| we rely on _____ cues most during movement | vestibular
🗑
|
||||
| our inner ear controls info about ___ & ___ cooridnation as well as ______ strategies. | eye & head, balance
🗑
|
||||
| semicircular canals are responsible for ______ motion. | angular
🗑
|
||||
| semicircular canals are oriented ___ degrees from eachother and pick up info in all planes. ___ degrees from the sagittal plane. | 90, 45
🗑
|
||||
| ______ - " bubble-like " projection containing crista | ampulla
🗑
|
||||
| Otoliths are responsible for ______ motion. | linear
🗑
|
||||
| the _____ and the _____ are the two otoliths. | uticle, saccule
🗑
|
||||
| the 3 semicircular canals are the ____, _____, and _______ | anterior, posterior, and horizontal
🗑
|
||||
| _____ - houses the hair cells and rest on a tuft of nn fibers, blood vessels and supporting cells | Crista
🗑
|
||||
| _____ - gelatinous membrane that overlies each crista, resulting in a 'coupling' between head motion and hair cell movement. | Cupula
🗑
|
||||
| Cupula has the same specific gravity as ________, therefore NOT pulled by gravity. | endolymph
🗑
|
||||
| The utricle senses ______ linear while the saccule contributes to the ______ movements. | horizontal, vertical
🗑
|
||||
| Sensory hair cells or '______' are also covered by a gelatinous membrane which contain otoconia | maculae
🗑
|
||||
| _______ - calcium carbonate crystals or 'ear rocks' which causes the maculae to be sensitive to gravity. | Otoconia
🗑
|
||||
| sensory hair cells convert head motion (both angular and linear) into _____ firing | neural
🗑
|
||||
| Neurons firing send messages to the brain resulting in __________ of the head and body in space as well as _________ eye and head movement | orientation, cooridinated
🗑
|
||||
| when information getting to the brain is incorrect or the processing is incorrect the result from eithe is sensory conflict that usually leads to _____, _____, and often times ______ | imbalance, dizziness, nausea
🗑
|
||||
| there are two main areas for vestibular input: 1) _____ _____ complex - " primary processor "2) ______ " the adaptive processor " | vestibular nuclear complex, cerebellum
🗑
|
||||
| ____-____ ____ VOR: the purpose is to maintain stable vision during head movement, thus controlling eye-head coordination | vestibular-ocular reflex
🗑
|
||||
| _____-____ ___ VSR: the purpose is to stabilize the head and body, thus controlling skeletal muscle and coordination for balance. | vestibular-spinal reflex
🗑
|
||||
| _______ - generated calorics ( COWS ) and position change, cardinal sign for vestibular dysfunction | Nystagmus
🗑
|
||||
| _____ and _____ are the 3rd most common complaint to physicians, following headaches and LBP | dizziness and imbalance
🗑
|
||||
| ___% of the population over the age of 40 will experience a balance or dizziness disorder during the lifetime | 40%
🗑
|
||||
| of patients 65 and older, ___% of them will fall in a given year -- more than _______ hip fx | 50%, 300,000
🗑
|
||||
| falls are the ______ cause of death from injury in persons over 65 years. | leading
🗑
|
||||
| __% complaints of dizziness are due to vestibular problem | 85%
🗑
|
||||
| >___% of MHI released from hospital as 'normal' have residual symptoms | 50%
🗑
|
||||
| Endolymph Hydrops/Meniere's Disease - deals with _____ _____ | fluid problem
🗑
|
||||
| Labyrinthitis/Neuronities - involves an ____ ____ _____ | inner ear infection
🗑
|
||||
| Fistula - is when there is a _____ __ _____ | rupture in membrane
🗑
|
||||
| Benign Paroxysmal Positional Vertigo - is having _____ _____ ___ | misplaced ear rocks
🗑
|
||||
| Trauma - either ____ pressure, or a blow to the _____ | barometric, head
🗑
|
||||
| Acoustic Neuroma - ____ _____ | benign tumor
🗑
|
||||
| Ototoxicity - can be caused from ____, or _______ | meds, chemicals
🗑
|
||||
| Clinical sxs of Vestibular Pathology include imbalance/_____, dizziness, _______, visual blurriness, ______ , tinnitus, fatigue | falls, nystagmus, nausea
🗑
|
||||
| Clinical sxs of CNS Pathology include _____, spontaneous ______, poor muscle ____/____, decrreased postural control, poor oculomotor control | ataxia, nystagmus, tone/control
🗑
|
||||
| Clinical Summary: __________ and _____ cues are compared with vestibular cues to produce compensatory oculomotor and postural responses. | somatosensory, visual
🗑
|
||||
| the result of somatosensory, visual, and vestibular cues is " _____ ______ ". When these systems work appropriately and seamlessly, balance occurs subconsciously. | sensory integration
🗑
|
||||
| Somatosensory, visual, and vestibular systems have a high level of ______ and _____ which allows for compensation through appropriate medical intervention. | plasticity, redundancy
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
txst fall 2008
Popular Physical Therapy sets