Smooth izihlunu zomzimba: abawuthobeli ngokuthanda komntu

Njengoko usazi, zonke iiseli zezihlunu ezineefitsha eqhelekileyo. Kodwa umfundi zonyango avareji kulula ukwahlula iipateni zeentlobo ngeentlobo zeeseli. Smooth ijwabu kwemisipha na umahluko isici. Kwaye ukuba babe amancinane ubuncinane ulwazi, uya siphambanise izihlunu striated kwaye egudileyo. Yinto elula ngokwaneleyo. Kweli nqaku siza kuthetha ntoni na izihlunu kwezihlunu agudileyo, kodwa ngeemilo kunye nesakhiwo.

Eyona iphambili eyahlula olu hlobo yethishyu ukusuka inwebu kwezihlunu, leyo iqhutywa lokuqonda koluntu (nayiphi na), - ukunqongophala lomnqamlezo-striations. Xa iseli enye kukho mnye kuphela core enye, ibekwe kufuphi phakathi kwayo (umgca leyo izihlunu zentliziyo). Kuyinto wena uya kubona phantsi kwisilayidi ngemicroscope.

Enkulu egudileyo esiqwini kwezihlunu ise sisezindongeni amalungu usikrobana iinkqubo ezahlukeneyo, kwakunye yinxalenye emithanjeni. Ukuba le esikule ise udonga imizimba, sukube iifom maleko ezimbini. Zangaphakathi - ring zangaphandle - longitudinal. Noko ke, kwezinye iindawo zeenkqubo ezahlukeneyo lo mthetho kantu, kwaye imicu zilungiselelwe spirally, umzekelo, xa imithambo ezinkulu. Kuphela kwinqanaba arterioles izihlunu zomzimba yabantu ezicwangciswe imicu setyhula.

Le zoleko zacinizelwa Uhlobo egudileyo kwithishyu yahlulwe iziqhuma zabo kwimicu, nganye ingqongwe yi kwizicwili, ngalo iiseli zezihlunu zifanelekile ukuba luvo nengqayi negazi. Besusa edibene omnye komnye, yaye ke ngoko buyeyona uhlobo INethiwekhi yamaNani Imisonto izihlunu, eziqulathe umsebenzi wabo kunye.

ijwabu kwemisipha Smooth kwakunye izihlunu intliziyo, luxanduva nkqubo yawo luvo, yaye ngoko ke intsebenziswano yawo phantsi kolawulo abazi. Le Ilaphu iyakwazi ixesha elide kwimo emanxebani inxenye (ukugcina tone). Ngoko ke, izakhiwo tubular ekwaziyo ixesha elide ukuba clearance ethile. Oku kubalulekile kuba umlinganiselo efana uxinzelelo lwegazi rhoqo kakhulu.

Ukuba ithoni zinokukhuliswa, le mithambo na imithambo. Maxa wambi kuba zophendlo lwezifo. Umzekelo, xa umntu onesifo asthma, smooth kwezihlunu incinane iityhubhu inyumoniya lube kakhulu, yaye umoya akakwazi ujikeleze kakuhle. Le nkqubo inye, ngokutsho kwezinye iingxelo, kuba sisiseko ukuyilwa nomfutho ebantwini.

Smooth ijwabu kwemisipha inawo amandla olawula ubungakanani elastin kwimikhumbi yegazi. Ezindongeni phecana zesisu, i ureters kunye tubes eligudileyo izihlunu contract ngesingqi, akha amaza peristaltic ekuthiwa-ibaleke ngokusebenzisa iityhubhu nizihlabe nabo imixholo kwicala elifanelekileyo.

Xa sithelekisa iiseli kwezihlunu striated kwaye agudileyo, ukuze kuqwalaselwe ukuba egudileyo kokwehla kakhulu ngokucothayo. Ngaphandle - izakhiwo umfundi egudileyo kweso kusabela kuyo ukukhanya.

Njengoko yaziwa, xa izihlunu izicwili iqulethe iiproteni actin kunye myosin. Kuye kwafunyaniswa ukuba actin ezikwiiseli zezihlunu kwamagingxi kunokuba striated. Kwakhona, izifundo usebenzisa iimikroskopu anda kakhulu lwabonisa ukuba reticulum sarcoplasmic iiseli zezihlunu kakuhle lingaphantsi eziphuhlileyo kunaleyo striated.

Njengoko sele sibonile ngentla apha, kukho iindidi ezimbini ifomu inyama ethathelwa ingqalelo. Iiseli yowokuqala, nto leyo ubunjwe imizimba, ziyakwazi ukuba ukwehla ngokucothayo kakhulu. Olu hlobo kuthiwa visceral. Kodwa izihlunu zomzimba kwamagingxi isakhiwo sphincter lo umfundi, uyakwazi kuncitshiswa ngokukhawuleza, ijwabu izihlunu kuthiwa kunye ifayibha innervation ngamnye. Njengoko igama yesibini, apho ifayibha nganye luvo yayo. Uhlobo lokuqala iindleko umzimba "enganeno" - inkqubo luvo kubekho eninzi ifayibha.

More on smooth izihlunu kwezihlunu zifumaneka iincwadi zezifundo histology. Kodwa ulwazi olutheni kweli nqaku kufuneka ibe ngokwaneleyo.