Isikhumba - candelo likhulu kwabantu

Kwiinkalo ezininzi organ kakhulu-kakhulu: abakhulu, enzima kakhulu ngeendlela ezahlukahlukeneyo. kubhaliwe ibekwe phi yaye yintoni na igama?

Esithetha ngayo eluswini, olunzima kakhulu emzimbeni, kuba kufuneka 3kg ubunzima. liphinde kwaye umbutho enkulu yabantu. Ukuba ebulungelelanisile, umzekelo, iya kukugubungela ukuya ku 2.3 m². Hair neenzipho; ngokuzenzekelayo, ifakiwe nayo igubungele zethu zangaphezulu, ukuba ezihlobene yayo.

Ukusuka kwindawo ezinokubangwa lwembono, isikhumba singachazwa njengento umzimba, kuba wenziwa iintlobo ezahlukeneyo izicwili, ezo xa zidibene rhoqo.

Umzekelo, i-inshorensi umzimba womntu, njengazo zonke ezinomqolo, ikhusela nje kuphela kwiimpembelelo yangaphandle, kodwa uthatha inxaxheba emanzini kunye netyuwa ukutya, kwaye lisebenza ilungu oluvo kunye excretory. Isikhumba ebandakanyekileyo ukuphefumla thermoregulation, yaye isebenza egcina kulwelo kunye nezondlo.

Umzimba inkulu yabantu iye ngeengcamba ezintathu: sangaphandle (nwebu) kunye dermis (mean) kunye izihlunu adipose ongama (hypodermis okanye umaleko ezantsi).

Uqwalaselo olubukhali sangaphandle

Umphezulu isikhumba ifikelela 5 mm ububanzi kwi kweentende zeenyawo, kodwa ngenye indlela, zonke iinxalenye ubuze beli umzimba, kulo maleko ubhityileyo 0.1 mm. It sangaphandle ikhusela umzimba nxamnye iintsholongwane kunye ngundo ezahlukeneyo, igcine le luthambe kwesikhumba.

Umaleko oluphezulu sangaphandle, qhiwu sebum, - kwabafileyo keratinized. A ephantsi - inwebu carcinomas owayamene dermis. Iqulethe a ngokuqhubekekayo ukulahlula iiseli intsholongwane ukuba abakreqayo, qala indlela yabo phezulu. Xa inkqubo ihamba kuzo ngenxa reactions yamachiza babhaca nucleus kunye organelles kunye neeseli, ukwakhiwa kweengongoma ezahlukileyo ze ngazo ngoku ikakhulu iquka ngekeratini kufa. Lo mjikelo yonke sisaqhubeka ukuya kwiintsuku ezingama-30.

Umaleko esezantsi isikhumba enesiqulatho aphezulu amafutha, esebenza njenge yokugcina amandla ethu, kuba wenza umsebenzi usambathisa thermal. Kulo maleko phantsi iingcambu iinwele, kwaye apha inkulu imithambo yegazi ingenisa ulusu.

Ulusu - ingxenye oluvo

Ukhe waqaphela ukuba uninzi iimvakalelo zabantu ibonisa zethu enkulu ngokupheleleyo igunya? isikhumba yethu reddens - Ukuba neentloni nje, nomsindo, uyakholiswa okanye uyakholiswa kakhulu into thina. Kucacile ukuba oku kungenxa yokwanda kwegazi kunye uqhagamshelwano kwezinye iimpahla.

Kodwa ngephanyazo nje yokoyika, thina, phezu koko, ajike lipholi, yaye ke sicinga ukuba nkqu iinwele wema phezu ekupheleni. Kwaye oku ziziphumo kwegazi entliziyweni, izihlunu akhululeke.

Uxinzelelo okanye excitability landa ubonisa ngokucacileyo organ enkulu yabantu. Kuye kwafunyaniswa ukuba emva ezinjalo ithi sidla kuvela irhashalala kunye ukuluma apha esikhumbeni. Kodwa ngamaxesha ngokuvisisana yokomoya nothando owonwabileyo, uba nempilo kunye omncinane ngokubonakalayo.

Ukongeza, i-organ inkulu yabantu olunamagama imo yonke eziphilayo. Ukhomba kwiinkqubo zophendlo lwezifo ekhoyo kwisiqwenga zesisu, inkqubo hematopoietic, uhlelo zokuzala, kunye nabanye.

Ukuba uthathe unonophelo yesikhumba sakho, ukugcina licocekile kunye nokomelela, iinkqubo nje umzimba, kodwa yokuphila esempilweni, kwakunye izithambiso ubudala-efanelekileyo kunye ogutyula, ke nina niya kundifuna eliyinkunzi libe ixesha elide.

Yaye ilungu zakho ezinkulu ebantwini soze kukunika ubudala yomnini!