Kapangidwe ndi ntchito ya trachea ndi

Trachea - mbali yofunika kwambiri wa kapepalako kupuma kuti zikugwirizana ndi m'phuno kuti bronchi ndi. Ndi kuti iye mosavuta pochitika mpweya, pamodzi ndi kuchuluka zinafunika wa oxygen. The trachea ndi tubular dzenje limba. Kutalika kwa chubu ranges ku masentimita 8.5 15, malinga ndi Maphunziro Akakhalidwe Kazolengedwa wa chamoyo. Koma musanaganize ntchito yaikulu ya trachea, ayenera kukhala bwino ndi mmene thupi lake lilili.

Ikani trachea malo. The trachea kumayamba chichereŵechereŵe cricoid pa za mlingo wa chisanu linkawonongeka khomo lachiberekero. Gawo lachitatu la chubu ndi pa mlingo wa msana khomo lachiberekero, ndi zina - mu chigawo thoracic, kumene trachea itha pa mlingo wa chisanu thoracic linkawonongeka. M'chigawo chino wa trachea ndi ukugawa mu bronchi awiri, n'kupanga mphanda - ndi bifurcation mfundo, amene zapiringizana ndi Chipilala kung'ambika.

Ngati tikambirana mbali khomo lachiberekero wa thupi, kutsogolo ndi mbali ya chithokomiro England. Kwa kubwerera ku tracheal chubu ndi moyandikana ndi kum'mero. Mbali ndi neuro-mtima mtolo, womwenso ulusi mitsempha vagus, mkati jugular mtsempha ndi mtsempha wamagazi carotid.

Trachea: kapangidwe. Ngati tikulingalira gawo mtanda wa trachea, zikhoza kuoneka kuti tichipeza zigawo zingapo - ndi mucosa lenileni submucosa, chichereŵechereŵe mbali adventitia. tracheal ntchito, ngati wina aliyense thupi gawo zimadalira dongosolo Choncho m'pofunika tione mbali iliyonse mwatsatanetsatane.

Mucosa - ankaimira ciliated stratified epithelium kuti lagona pa Kakhungu woyambira. maselo Cilia kusuntha kwa m'mphako ya. The zikuchokera mulinso maselo zaminyewa tsinde ndi muyeso kuti secrete pang'ono ntchofu. Pali endocrine maselo yotulutsa serotonin ndi norepinephrine. Chapansi Kakhungu ali kwambiri ulusi zotanuka. Pali yosalala, myocytes munthu anayikidwa mu bwalo.

Submucosal wosanjikiza - wa fibrous, lotayirira connective minofu. Ndi mu wosanjikiza izi ndi mtokoma wa ulusi mitsempha ndi ziwiya ka magazi amene ali ndi udindo kwa lamulo ndi magazi.

Hyaline wosanjikiza chichereŵechereŵe aumbike ku chichereŵechereŵe chosakwanira, amene zatenga kulandilidwa ndi mphambu ziwili gawo la circumference tracheal chubu. Cartilages chikugwirizana pakati zingwe ndi circumferential. chiwerengero cha chichereŵechereŵe anthu osiyanasiyana monga 16 20. anapanga membranous kumbuyo khoma limene adjoins ya kum'mero. Motero, ndime ya bolus ndi sikusokoneza ndondomeko kupuma.

Adventitia wa trachea ndi - ndi woonda connective minofu m'chimake okuta chitoliro kuchokera kunja.

Monga mukuonera, ndi thunthu la trachea si choncho zovuta.

Tracheal ntchito. Ntchito yaikulu ya tracheal chubu - wakwerapo mpweya m'mapapo. Koma izi si mbali zonse za trachea a.

Monga tanenera kale, Kakhungu mucous ali ndi ciliated tracheal (ciliated) epithelium, magulu amene akuuzidwa cha m'phuno ndi m'kamwa zibowo zam'mano. Komanso, maselo muyeso secrete ntchofu. Pambuyo kukhudzana ndi mpweya mu trachea a matupi ang'onoang'ono akunja monga fumbi, particles ndi kuphimba ntchofu kayendedwe ka cilia ali anakankhira mmbuyo mu m'phuno ndi kuwoloka kumka ku mmero. Choncho, trachea imagwira ntchito ndi zoteteza. Mu nkhani ya kukhudzana ndi lalikulu thupi yachilendo chifuwa reflex akuyamba, imene trachea ndi kuchepera kwambiri lumen wa.

Monga amadziwika, kuyeretsa ndi kutentha kwa mpweya amapezeka ndi m'mphuno, koma ntchito iyi watenga mbali ndi trachea. Komanso, resonator trachea pa kulankhula chifukwa amakankhira mpweya zingwe amapilira.

Kuti adzimvera, ife tikhoza kuwona kuti ngakhale kapangidwe ndi yosavuta, trachea angapo a ntchito zofunika kwambiri popanda lomwe kuli la munthu n'zosatheka.