Imisebenzi esiqwini izihlunu kunye neentlobo isakhiwo

Umzimba zonke izilwanyana, kuquka abantu, wenziwe ntlobo ezine esiqwini: epithelial, luvo, nokuqina kwemisipha. Ngomhla yokugqibela eza kuxutyushwa kweli nqaku.

Ezahlukahlukeneyo esiqwini kwezihlunu

Kuyinto iintlobo ezintathu:

• striated;
• ziindlela ezigudileyo;
• intliziyo.

Imisebenzi inwebu yesihlunu kweentlobo ezahlukeneyo ziyahluka kancinane. Kunye nesakhiwo kakhulu.

Baphi na isicwili kwezihlunu emzimbeni womntu?

Izihlunu zomzimba kweentlobo ezahlukeneyo abahlala indawo ahlukeneyo emzimbeni kwezilwanyana nabantu. Ngenxa yoko, ngenxa imisipha intliziyo, njengokuba igama lixela, it akha ngentliziyo.

Ukususela izihlunu striated skeletal kwakhiwa izihlunu zomzimba.

izihlunu Smooth thayile kwisisu ngaphakathi, ekufuneka lincitshiswe. Oku, umzekelo, amathumbu, isinyi, wesibeleko, isisu, njl

Isakhiwo kwemisipha kweentlobo ezahlukeneyo lohlukile. On intetho yakhe ngokweenkcukacha elilandelayo.

njani ijwabu kwezihlunu?

Siqulathe iiseli ezinkulu-ubungakanani - iiseli kwezihlunu. Kwakhona ezibizwa ngokuba nefayibha. iiseli Muscle ilifa multi-core kunye ezininzi mitochondria - organelles elijongene imveliso yezamandla.

Ngaphezu koko, isakhiwo esihlunwini izicwili abantu kunye nezilwanyana kubandakanya ubukho encinci into equlethe collagen intercellular, enika izihlunu luthambe.

Makhe sijonge isakhiwo kunye nomsebenzi inwebu yesihlunu kweentlobo ezahlukeneyo ngokwahlukeneyo.

Isakhiwo kunye nendima smooth ijwabu kwezihlunu

Eli laphu ilawulwa yi-nkqubo yawo luvo. Ngoko ke, umntu akakwazi ukunciphisa umsipha ngabom ezakhiwe ilaphu egudileyo.

It luqokelelane ukusuka mesenchyme. It is a uhlobo osandul kwizicwili.

Kunciphisa le inyama yi ngaphantsi esebenzayo kakhulu yaye ngokukhawuleza kunokuba striated.

Lungisani laphu yakhiwe semilo myocytes fusiform kunye eziphelweni etsolo. Ubude ezi seli abe ukusuka micrometers 100 ukuya 500, nezinyuko - ezimalunga 10 micrometers. Kwiiseli ze inyama zezi mononuclear. Isiqalo ise embindini myocyte. Ngaphezu koko, ephuhliswe kakuhle organelles ezifana mitochondria kunye EPS agranular. Kwakhona kwemisipha kakuhle iiseli zomzimba kukho inani elikhulu inclusions glycogen, leyo zenza reserves zezondlo.

Le nto leyo inika ukuncitshiswa izihlunu zomzimba lweentlobo, zibe myofilaments. Bangakwazi zakhiwe iiprotheni ezimbini contractile actin kunye myosin. myofilaments ububanzi ezinama myosin, na neenanometer-17, yaye abo ngeglasi actin - 7 neenanometer. Kukho kwakhona myofilaments intermediate kabani ubukhulu yi neenanometer-10. NgezoBomi myofibrils longitudinal.

Ubume bale hlobo esiqwini izihlunu lukwaquka matrix extracellular of collagen, nto leyo enika unxibelelwano phakathi myocytes ngamnye.

Imisebenzi inwebu yesihlunu hlobo:

• Sphincter. Ngaba ukuba izicwili izihlunu egudileyo walungiselela ngesetyhula olawula umxholo umzimba yenguqu kwenye okanye ukusuka kwenye inxenye yomzimba ukuya kwenye.
• Basishiye. Ihlala yokuba izihlunu agudileyo ukunceda iimveliso inkunkuma zigutyula umzimba, kwakunye inxaxheba kule nkqubo inenimba.
• Ukudala mithambo yegazi.
• Formation of the apparatus ligamentous. Ngenxa kuye, amalungu ezininzi, ezifana nezi ntso, ziqhutyelwa endaweni.

Ngoku makhe sijonge ifomu yethishyu kwezihlunu.

Striated

Oku kulawulwa yinkqubo somatic luvo. Ngoko ke, umntu ngabom ukulawula olu hlobo kwezihlunu. Ukusuka striated skeletal ijwabu kwezihlunu kwakheka.

Le inyama ali imicu. Ezi ziiseli, anesibambiso ezininzi umphakathi ilahlwa kufutshane ndizayo plasma. Ukongeza, ukuba ziqulethe izixa ezikhulu inclusions glycogen. Ephuhliswe kakuhle organelles ezifana mitochondria. Bona kufutshane iiseli contractile ngayo izinto. Zonke ezinye organelles zibekwe kufutshane eziba kwaye kuphuhliswa kakuhle.

Izakhiwo apho ilaphu cross-enemizila lifinyele, ukuba myofibrils. ububanzi yabo phakathi enye ezimbini micrometers. Myofibrils ukulidla inkoliso iseli ibekwe sesazulwini sayo. NgezoBomi myofibrils longitudinal. Bona eyenziwe ukukhanya disks mnyama, nokuxuba, leyo kudala umnqamlezo "UV" ilaphu.

Imisebenzi inwebu yesihlunu yolu didi:

• Nika umzimba ihamba emajukujukwini.
• Unoxanduva intshukumo yamalungu omzimba xa kuthelekiswa namanye.
• Ukukwazi ukugcina yokuma yomzimba.
• Wazibandakanya kulawulwe ubushushu: izihlunu esebenzayo yancitshiswa, kungona iqondo lobushushu. Xa qa izihlunu striated ukuze uqale bangosulelwa engathandi. Oku kuchaza kukungcangcazela komzimba.
• Nikhonze zikhusela. Oku kuyinyaniso ngokukodwa izihlunu esiswini, elikhusela amalungu zangaphakathi ezininzi ukusuka umonakalo.
• Act njengoko yokothula ngamanzi kunye neetyuwa.

Inhliziyo ijwabu imisipha

Le Ilaphu iyafana apha striated, kunye agudileyo. Njengoko kwakunye egudileyo, oko kulawulwa yinkqubo yawo luvo. Noko ke, ukuncipha njengoko ngenkuthalo njengoko striated.

It iqulathe iiseli ekuthiwa cardiomyocytes.

Imisebenzi inwebu yesihlunu yolu didi:

• Kuyinto enye kuphela: ukuqinisekisa intshukumo igazi emzimbeni.