eshituv va vestibular analizatorlarining faoliy tavsifi

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eshituv va vestibulyar analizatorlarning faoliy tavsifi. eshituv va vestibular analizatorlarining faoliy tavsifi. eshituv va vestibulyar analizatorlarning faoliy tavsifi eshituv analizatorining tovushni tutib oluvchi va tovushni utkazuvchi apparatlari tovush tebranishlari maxsus tuzilmalarning butun bir tizimi orkali eshituv retseptorlariga utadi. kulok uch bulimga bulinadi: tashki kulok urta kulok ichki kulok. . urta kulokning eng muxim kismi – eshituv suyakchalaridir. ular bolgacha, sandoncha va uzangicha bulib, bir-biri bilan pishik boglar yordamida boglangan tashki kulokka kulok suprasi va tashki eshituv yuli kiradi. kulok suprasi va tashki eshituv yuli tovush tebranishlarini nogora pardaga utkazadi bu suyakchalar tizimi nogora parda tebranishlarini ichki kulokka utkazadi. urta kulokda m. tenzor tympani va m. stapedius degan ikkita muskul bor. urta kulok bushligini burun-xalkumga tutushtiruvchi evstaxiy nayi borligidan urta kulok bushligidagi bosim atmosfera bosimiga teng buladi. eshituv analizatorining retseptor kismi. spiral organning tukli xujayralarida retseptor potentsial xosil bulish mexanizmi ichki kulokda daxliz va yarim aylana kanallardan tashkari chiganok xam bor. …

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nogora narvoncha bilan tutashadi. nogora narvoncha esa yumalok darcha soxasida boshlanadi. chiganokning yukori va pastki kanallari perilimfa bilan tula. perilimfa tarkibi jixatidan orka miya suyukligiga uxshaydi. oval darcha bilan yumalok darcha membranalari kanallar perilimfasini urta kulokninng xavoli bushligidan ajratib turadi. yukori va pastki kanallar urtasida parda kanal bor. bu kanal bushligi chiganokning boshka kanallari bushligiga tutashmaydi va u endolimfa bilan tulgan. endolimfani kanalning tashki devoridagi stria vascularis degan maxsus tomirli tuzilma ishlab chikaradi. endolimfadagi k+ ionlarining mikdori perilimfadagiga nisbatan 100 marta kup, na+ mikdori esa 10 marta kam. shu sababli endolimfa perilimfaga nisbatan musbat zaryadlangan. chiganokning urta kanali ichida, asosiy membranada tovushni sezuvchi apparat – kortiy a'zo retseptorlari joylashgan. ana shu xujayralar tovush tebranishlarini nerv impulsiga aylantiradi. asosiy membranada retseptor xujayralar 2 kavat bulib joylashadi. ularning ichki kavati bir kator retseptor xujayralardan tuzilgan. ularning umumiy mikdori 3500 ta. tashki kavat 3-4 kator xujayralardan iborat bulib, ularning umumiy mikdori 12000-20000 ga …

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$peg image11.jpeg image12.png image13.png image14.png image1.jpeg brain p middle external auditory centef ear ear auditory auditory nerve nerve recessus membranae canalis semicircularis posterior canalis semicircularis anterior meatus acusticus extermus recessus meatus j (occous) acusticus extemus | meatus acusticus: externus: cartilagi- neus tympanicum ‘tubae auditivae porus acusticus ‘exteinus lobulus auriculae styloideus ‘y temporalis, m. levator veli palatini ostium pharingeum tubae auditivae helix crura of antihelis avricular tubercle (arwiny scapha antihelix: concha {cymbé cf auricle | cavity right auricle epitympanic recess, malleus tensor tympani tympanic cavity pharyngotympanic (auditory) tube levator velipalatini muscle canilaginous osseous ——-~—__ external acoustic meatus tympanic membrane ‘meatus and middle ear coronal oblique section of external acous long limb of incus posterior mallear fold pars flaccida ‘anterior mallear fold lateral process cof malleus pars tensa handle of malleus right tympanic membrane (eardrum) ited trough specuon ‘chorda tympani nerve jong limb of incus stapesin oval (vestibular) window lateral process ‘ofmalleus …$

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ennee yxo 8. bapabanwan ri 5 cross-section through cochlear canal (eckert 1988) reissnor’s membrane, scala vestiouli (parity ere i, fibers i scala tympani (parityrnpn) goshinar area (ved (alec n. salt, washington university) pee eee rods el gori ductus cochlearis stria vascularis paries vestibularis ductus cochlearis (membrana vestibularis) membrana tectoria sulcus spiralis internus labium limbi vestibulare abium limbi ympanicum foramen nervosum vas spirale (organum spirale lamina basilaris lig. spiral ] ‘sochleas paries tympanicus ductus cochlearis (membrana spiralis) leirpanbuste crista’ otpocrkh kuietok basilaris ganglion spirale cochleae ganglion spirale cochleae tlepuepuueckne orpocrett xnetok keene creees one ganglion spirale cochleae tabyrinthum osseum sab , scala tympani how the ear works fluid nerve air wave vibration wave impulse © sound enters the ear canal and contacts the ear drum which vibrates the malleus, incus and stapes. this generates fluid waves inside the cochlea. the waves are transformed into nerve impulses. /docprops/thumbnail.jpeg se —__ eshituv va …

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eshituv va vestibulyar analizatorlarning faoliy tavsifi. eshituv va vestibular analizatorlarining faoliy tavsifi. eshituv va vestibulyar analizatorlarning faoliy tavsifi eshituv analizatorining tovushni tutib oluvchi va tovushni utkazuvchi apparatlari tovush tebranishlari maxsus tuzilmalarning butun bir tizimi orkali eshituv retseptorlariga utadi. kulok uch bulimga bulinadi: tashki kulok urta kulok ichki kulok. . urta kulokning eng muxim kismi – eshituv suyakchalaridir. ular bolgacha, sandoncha va uzangicha bulib, bir-biri bilan pishik boglar yordamida boglangan tashki kulokka kulok suprasi va tashki eshituv yuli kiradi. kulok suprasi va tashki eshituv yuli tovush tebranishlarini nogora pardaga utkazadi bu suyakchalar tizimi nogora parda tebranishlarini ichki kulokka utkazadi. urta kulokda...

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