Nhengo havambozivi. Chii?

tactile nhengo ane uwandu hwezvinhu zvose zvabatanidzwa. dzakananga receptors, izvo riri tsandanyama, nemarunda uye mapfundo, ganda uye yokubereka mucosa, rurimi, miromo. Tactile zvomukati munhu kuona mumwe mechanically. Somuenzaniso, tinganzwa vamwe kumanikidzwa, murove, marwadzo uye tembiricha kunyanyisa. Maererano afferent innervation ganda, voitakura kunze chaiyo tsinga fibers, izvo zvinozoita vabva musana ganglia Tutsinga tunofambisa mashoko utwu. Tactile receptors iri paganda, kutsinga dzinouya dzouropi dendrites vari aumba. Kazhinji, sezvo kare ambotaurwa, ganda receptors vanokwanisa kunzwisisa kwete chete makemikari uye zvemaziso kuitika, asi zvemagetsi uye tembiricha.

Receptors, ive nhengo havambozivi, haagoni chete kuva tembiricha kana tactile, asiwo kunorwadza. Maererano physiologists, mumwe nomumwe wavo anoita somunhu vachifunga mudziyo. Tsinga harinzwi vari rakakamurwa mhando mbiri: non-vakasununguka uye wakasununguka. musiyano yavo pamberi pa wechipiri axial humburumbira uye masero gly pakutanga.

Nhengo havambozivi - zviri, kupfuura zvose, akasununguka tsinga harinzwi. In ganda kwevanhu zvakadaro rakakura chitsama. Vakawanda vavo vari ndebvu. In ganda kwevanhu, izvo ane mvere, kwakaratidza kwete chete vakasununguka tsinga harinzwi asi mehanoretsepotry kuti inokurukurwa zvikuru unyanzvi. Somuenzaniso, paganda minwe pamaoko uye inotsikwa netsoka dziri Meissner corpuscles, Krause uye girobhu racho dziri mucosa nemiromo, minyatso, sikarudzi, ichipa zvinozoita inonzi nzvimbo yakawedzerwa nehanya. Kana kubatwa acho, kunosanganisira tsandanyama spindles kana proprioceptors kuti tsandanyama, fascia, nemarunda uye mapfundo. Mumwe zvinhu zvose inobudisawo kwevanhu tactile manzwiro havambozivi anonzi miviri siyana pachavo, uye kunyanya zvavo zvenyama spatial excitation.

Pinda pakukora ari Epiderme e vakawanda vakasununguka tsinga harinzwi. Vakaona marwadzo kuitika. Izvi zvinonzi nociception. Chinonyanya zvinyoronyoro anonzwisiswa kushandisa tsinga harinzwi izvo kumonyanisa kumativi bvudzi midzi. Kuwedzera pane zvakawanda Epiderme e pamusoro Merkel masero dzinoshanda omumwe chero kubata. Mukuwedzera, ivo synthesize ari neuronal mamorekuru, neurofilaments nezvimwe zvezvinangwa dzakawanda wakananga izvi masero etsinga. Akasangana-enkephalin kunomutsa anongoda zvose zvirwere mhinduro dzemuviri. Uye ichi pasinei nokuti ane fuma iri zvinoberekwa chete Merkel masero. Chimwe nhengo havambozivi ndiye Meissner corpuscles, izvo kare ataurwa pamusoro. Ivo dziri kunyanya papillary paiva ganda sikarudzi, minwe, anopenya uye miromo. dhayamita yavo haisi anopfuura 100 microns. Uyezve, mumwe nomumwe masero aya akapoteredzwa kunze inokosha connective tishu Kamudzira. It rinoumbwa masero glial, izvo zvinozoita zvinoumba chinouraya thickenings akapoteredza mumwe anenge tsinga fibers mukati chinu.

muviri kwakadaro havambozivi sezvo kufurirwa Kanotokonya ndiyo lamellar Vater-Pacini corpuscle. A kuwanda izvi masero ari subcutis iri pudendal, nharaunda nezvigunwe, Kamudzira nhengo dzomukati, masvingo dundira. The dhayamita rimwe chete mhuru idukusa imwe millimeter. Kazhinji vanenge dzinoratidzwa nokuvapo yomukati uye chokunze hamvuropu, apo pakati bazi rokutanga inopfuura etsinga faibha, iyo inoshanda chaizvo.

Uropi hwomunhu anogamuchira guru Kuwanda kwemashoko pamusoro nyika. Muchiitiko chino, zvikuru mune nedanho maonero enyika nokuda mumwe nomumwe wedu chete kubata. Pfungwa Nhengo - tactile receptors iri yose muviri pamusoro. Nekuda kwaizvozvi tinonzwa kupisa, marwadzo, murove uye zvakawanda.