Organ na touch. Mene ne wannan?

tactile sashin jiki ne tara na musamman rabe, wanda aka located a cikin tsokoki, tendons da gidajen abinci, fata da kuma al'aura mucosa, harshe, lebe. Tactile gabobin mutum gane kowane mechanically. Alal misali, ƙila mu ji wasu matsa lamba, tabawa, zafi da zazzabi matuƙa. Game da afferent innervation na fata, da shi ne da za'ayi ta musamman jijiya zaruruwa, wanda bi da bi zo daga kashin baya ganglia neurons. Tactile rabe dake a cikin fata, azanci shine neuron dendrites suna kafa. Kullum, kamar yadda aka ambata a riga, fata rabe ne iya gane ba kawai da sinadaran da kuma inji samuwar kasashe, amma kuma lantarki da kuma zazzabi.

Rabe, kamar yadda wani sashin jiki na touch, ba zai iya zama da yawan zafin jiki, ko tactile, amma kuma mai raɗaɗi. A cewar physiologists, kowane daya daga gare su, abubuwa a matsayin gabansa na'urar. Jijiya endings ya kasu kashi biyu iri: ba-free kuma free. Su bambanci ne gaban a karo na biyu axial Silinda da gly Kwayoyin da fari.

Organ na touch - shi ne, a sama da dukan, free jijiya endings. A 'yan Adam fata da irin wannan babbar adadin. Da yawa daga cikinsu a tsaye bakin ramin. A adam fata, wanda aka rufe da gashi, ya bayyana ba kawai free jijiya endings, amma mehanoretsepotry cewa suna dauke sosai na musamman. Alal misali, a cikin fata na yatsunsu a cikin hannãyenku da tafin kafa suna located Meissner corpuscles, Krause da kwan fitila ne a kan mucosa na lebe, nonna, al'aurar, samar da bi da bi da ake kira yanki wani ƙara ji na ƙwarai. Amma ga touch na tsari, shi ya shafi tsoka spindles ko proprioceptors na tsokoki, da fascia, tendons kuma gidajen abinci. Daya daga cikin abubuwan da dukkan fuskoki dabam-dabam na mutum tactile abin mamaki na touch yana dauke da yawa jikinsu da kansu, da kuma musamman su na boko da na sarari zumudi.

Shiga cikin kauri daga cikin epidermis yawa free jijiya endings. Sũ ba su sani zafi samuwar kasashe. Wannan tsari shine ake kira nociception. A mafi m touch ana tsinkayarsu da farko ta jijiya endings, wanda karkatar da magana, a kusa da gashi asalinsu. Bugu da kari akwai mutane da yawa a cikin epidermis na Merkel Kwayoyin suna kai tsaye da hannu a cikin tsinkayen kowace touch. Bugu da kari, sun haduwa da neuronal kwayoyin, neurofilaments da kuma wasu alamomi musamman ga wadannan jijiya Kwayoyin. Hadu-enkephalin stimulates kusan duk rigakafi martani na jikin mutum. Kuma wannan duk da cewa wani abu da aka samar da wannan Merkel Kwayoyin. Wani sashen touch ne Meissner corpuscles, wanda aka riga aka ambata a sama. Suna located, yafi a cikin papillary Layer na fata na al'aurar, yatsunsu, eyelids da kuma lebe. Su diamita ba fiye da 100 microns. Bugu da kari, kowane daga cikin wadannan Kwayoyin aka kewaye waje da musamman connective nama kwantena. Yana da aka hada da glial Kwayoyin, wanda bi da bi samar da m thickenings a kusa da kowane m jijiya zaruruwa ciki da flask.

Irin wannan jikin touch a matsayin matsin lamba tsoka mai amsa sigina ne lamellar Vater-Pacini corpuscle. A babbar yawan wadannan Kwayoyin a cikin subcutis da yake a cikin pudendal yankin, yatsun kafa, kwantena ciki gabobin, ganuwar da mafitsara. A diamita guda maraƙi ne kasa da millimeter. Kullum suna da halin da gaban da ciki da kuma na waje ambulan, yayin da a cikin cibiyar na farko reshe wuce da jijiya fiber, wanda shi ne sosai m.

The mutum kwakwalwa sami wata babbar adadin bayanai game da duniya. A wannan yanayin, na bayar da muhimmanci kan aiwatar da ji na duniya domin kowannenmu ne kawai a touch. Sense Gabar - tactile rabe dake ko'ina cikin jiki surface. Saboda wannan da muka ji zafi, zafi, tabawa, kuma mafi.