Uas receptors muaj nyob rau hauv daim tawv nqaij. Lawv cov qauv thiab muaj nuj nqi

Nyob rau hauv peb lub cev daim tawv nqaij muaj ib tug tag nrho deg hauv cheeb tsam ntawm 1.5 m ² thiab 2.5 m ^2, operably txuas mus rau lub hauv nruab nrog cev thiab muaj kev cuam tshuam lawv txoj cai raws li ib txwm thiab pathological tej yam kev mob. Nrog ib tug complex peb txheej qauv, nws muaj paj txoj, qhov thiaj li hu ua daim tawv nqaij receptors perceiving stimuli los ntawm cov sab nraud ib puag ncig. Qhov tsab xov xwm yuav sim teb ib ob peb lus nug. Uas receptors muaj nyob rau hauv daim tawv nqaij? Ntawm lawv cov qauv thiab muaj nuj nqi? Yuav ua li cas yog tus sis ntawm tus tib neeg lub cev thiab lub ntuj puag ncig integuments tej yam kev mob.

Uas receptors muaj nyob rau hauv daim tawv nqaij

Anatomy thiab physiology yog kawm tsis tau tsuas yog lub loj systems ntawm lub cev, tab sis kuj mus rau cov neeg uas receptors muaj nyob rau hauv daim tawv nqaij. Biology (Qib 8) piav txog cov morphological thiab haumxeeb nta ntawm lub tactile sensor system, raws li nyob rau hauv lub specifics ntawm cov qauv thiab cov kev khiav dej num ntawm lub ntau hom ntawm daim tawv nqaij receptors, nws muaj xws li.

Nyob rau hauv daim tawv nqaij receptors yog peb hom: mechanoreceptors thiab thermoreceptors nociceptors (mob). Cov yav tas yog nyob rau hauv feem ntau tus neeg mob nyob rau hauv lub epidermis - tus txheej txheej ntawm daim tawv nqaij, muaj raws ntawm epithelium, nyob rau hauv ob peb kab. Lub sab qaum kev ib lub stratum, exfoliated thiab hloov nyob rau cov nuj nqis ntawm lub sab khaubncaws sab nraud povtseg. Nyob rau hauv tib neeg, lub epidermis yog yuav luag tag tshiab thoob plaws hauv lub hlis.

Thawj ob hom - mechanoreceptors thiab thermoreceptors - muaj feem ntau nyob rau hauv lub dermis los yog daim tawv nqaij ntawm nws tus kheej, nyob rau hauv lub txheej ntawm connective ntaub so ntswg, uas muaj tag nrho cov ntawm nws cov yam ntxwv hais, xws li cov ntshav thiab cov qog cov hlab ntsha, cov plaub hau thiab qog hnab.

Receptor muaj nuj nqi ntawm daim tawv nqaij

Tib neeg daim tawv nqaij ua ob peb tseem ceeb functions, yog ib tus uas yog tus receptor. Nws yog vim hais tias lub cev ntaub thaiv yog receptor teb, uas cov khoom siv lub central tshee system raws li cov lus qhia txog cov kev hloov nyob rau hauv daim tawv nqaij ntawm nws tus kheej, thiab hais txog qhov xwm ntawm tus stimuli. Active lub cev cov ntsiab lus txuam nrog tej qhov chaw ntawm lub paj hlwb, thiab los ntawm lawv nrog rau cov licas thiab hauv nruab nrog cev.

daim tawv nqaij receptors yog tsis muaj lwm yam tshaj lub peripheral feem ntawm musculocutaneous analyzer, uas kuj muaj xws li lub qab haus huv nqa lub excitation feem ntawm receptors thiab chaw zov me nyuam nyob rau hauv lub hlwb, muaj nyob rau nws cov lub cev feem. Raws li hais yav tas los, lub receptors ntawm daim tawv nqaij analyzer nyob rau hauv lub epidermis thiab daim tawv nqaij nws tus kheej. Lawv cov qauv thiab kev khiav dej num yog cov tib.

Piv txwv li, tactile receptors - Meissner corpuscles, yog markers uas txiav txim cov kev ceev ntawm kov thiab muaj nyob rau hauv lub epidermis, thiab tus thav nyuj Pachchini uas yog sib sib zog nqus nyob rau hauv lub dermis, lub luag hauj lwm rau lub acceleration kev hloov ntawm tactile stimuli. Ximxoo nov ntawm nqaij tawv nyob tsis tau tsuas yog nyob rau hauv zoo li cas ntawm receptors nyob rau hauv daim tawv nqaij perceive cov nyhuv ntawm lwm ib puag ncig, tab sis kuj nyob rau hauv lub zaus ntawm lub stimulus. Yog hais tias nws yog rau ib lub sij hawm ntev tsis tu ncua, muaj ib tug kev xav ntawm siab thaum sib quas ntus lag luam - kov thiab siab zog ntawm cov stimulus tus nqi hloov - co nov ntawm nqaij tawv.

Lub qis tshaj Harbor cov yam ntxwv ntawm daim tawv nqaij receptors nyob rau lub ntsis ntawm tus nplaig thiab daim di ncauj, siab dua - nyob rau cov ntsis ntiv tes, lub xib teg, lub sab hauv folds ntawm lub luj tshib, thiab lub siab tshaj plaws pib muaj mob plab daim tawv nqaij, ob txhais taw thiab rov qab.

Properties kub receptors

Kub receptors qub tswj theem ntawm metabolic tshua homeostasis. Lawv muaj nyob rau hauv cov phab ntsa hauv cov hlab ntsha thiab muab kub kev cai - ntsuas kub hloov dab homeothermic kab mob muaj ib qhov lub cev kub. Yog li, lub adaptation txheej ntawm muaj sia nyob uas receptors muaj nyob rau hauv daim tawv nqaij thiab yuav ua li cas sai sai lawv co tes hloov nyob rau hauv lub cheeb tsam.

Cov tseem ntawm nociceptors

Txoj kev tshawb no ntawm qhov teeb meem, uas receptors muaj nyob rau hauv daim tawv nqaij, yuav tsis tiav yog hais tias peb tsis xav txog lub peculiarities ntawm cov qauv ntawm cov mob receptors. Contrary kom kws advertising, helpfully muab ib zaug thiab rau tag nrho cov tau tshem ntawm qhov mob, peb nco ntsoov tias cov mob no yog ib tug tiv thaiv teb ntawm lub cev, taw nws ntawm teeb meem. Nociceptors muaj rau hauv daim ntawv ntawm ib branched paj txoj, tsoov ib tug ntau yam excessively zog stimuli thaum tshav kub kub, siab, mob khaub thuas. Lawv loj tshaj kom muaj nuj nqis yog nyob rau hauv fingerpads, ib tug periosteum, ib txog hlab ntsha phab ntsa nyob rau hauv lub hlwb arachnoid.

Mob yuav tau kho raws li ib daim ntawv ntawm tactile xaav, ces nws yog ib qho tseem ceeb xwb tsis muaj receptors nyob rau hauv daim tawv nqaij, tab sis kuj yuav ua li cas zoo lawv teb rau muaj zog stimuli. Cov kev xav ntawm mob yog pom raws li ib tug subjective lawm hais tias peb qhia yog nyob rau hauv ib tug tshwj xeeb tsis zoo psycho-lub siab lub ntsws lub xeev. Nws yog provoked los ntawm tej stimuli feem xyuam rau txoj piav thoob hlo modality.

Qhov tsab xov xwm soj ntsuam qhov yam ntxwv nta thiab khiav dej num ntawm lub receptors ntawm daim tawv nqaij.