Komzimba intliziyo yomntu

Nokwakheka zomzimba wentliziyo bebesoloko umtsalane abaphandi. Oku kuyaqondakala, kuba intliziyo - kuba umzimba kuphela isebenza odwa. Ukusuka umsebenzi wakhe kuxhomekeka kwimeko jikelele umzimba, ezempilo kunye nokugula. Enyanisweni, kunye isingqi yokuqala yebhunga, ubomi bomntu iqala ukukhatyelwa yokugqibela ime.

komzimba intliziyo yomntu unzima kakhulu - umzimba owenza umsebenzi omkhulu, ukubonelela umzimba kunye negazi. Ngaphandle, intliziyo na uhlobo ikhowuni, ngaphakathi nomgodi ngokufulelwa iintungu ezinezikhondo umaleko. Umgaqo esebenza ngayo intliziyo emiselwe isakhiwo sayo. Oku kufana nempompo Inqanaba-amabini: Inqanaba lokuqala ventricle, leyo iimpompo igazi intendelezo, kwaye isigaba sesibini - intendelezo iimpompo igazi kulo aorta. Ithuba ukumpompa igazi lufumaneka ekudibaneni atrioventricular - ukuba isebenza kunye piston, nesivalo.

Anatomy wentliziyo, nakuba izinqumo zeencwadi zezifundo ezimiselweyo ngamnye ngokupheleleyo. Nokuba ngendlela yayo, oko kunokwahluka kuxhomekeke kwizinto ezininzi. intliziyo Ifunyanwa nayo akufani - abantu abaninzi ukuba usele kunye lisisiqalo kwi kweli ziko, kwaye kwezinye ishenxiselwe ziko, nkqu kunye shift ukuya ekunene. intliziyo akulingani metric iparameters - oko kudla uboniswa phezulu kwaye iingqameko emazantsi, kodwa umlinganiselo ezi amanani kuzo zonke ezahlukeneyo (ubukhulu becala kuxhomekeke kudidi lwe-siseko). Heart mass kwi-avareji nemiqulu amabini, anamanci mahlanu ezingamakhulu amathathu namashumi amathathu grams.

Anatomy wentliziyo, njengoko organ olunzima kakhulu ngokwaneleyo wafundela ukuza kuthi ga ngoku. Intliziyo iye ibhegi intliziyo ebizwa ngokuba pericardium. It iqulathe, yena, lamanqanaba ezintathu babe ubukhulu ezahlukeneyo, ezahlukeneyo ingakumbi abo enze imisebenzi eyahlukeneyo. Ngokutsho isakhiwo intliziyo yahlulwe ezingontsini ezine - isebe. It ukuba ekhohlo kwaye ventricles ekunene, ekhohlo kunye nomthambo ekunene. Phakathi kumacala asekhohlo nasekunene ukwahlukanisa esisemgceni. In intendelezo ilungelo eliya kumgongxo eVienna, kwaye intendelezo ekhohlo ukuxuma pulmonary. Ukususela ventricle ekhohlo, kwaye lo aorta ukwenyuka ekunene - kwemithambo miphungeni.

komzimba Intliziyo ezithile yinto yokuba ventricles azikho efanayo ubukhulu zabo. Hi xikombiso, le ventricle lasekhohlo kuku iindonga ziyatyeba (ziyatyeba izihlandlo ezithathu ngaphezu iindonga ekunene), kususela ventricle ekhohlo iimpompo igazi kuye kwasasazwa zenkqubo, apho lithe laqhenqetha wonke umzimba. Ngenxa yoko, benze isangqa esikhulu kunye noxinzelelo lwegazi ngakumbi.

Ukuze intliziyo alizaliswanga gazi ukuba iphoswe entliziyweni iye lwezivalo. Ngaxa ethile kwemithambo uvale isithuba ukuhamba kwegazi, okanye uyivule. Ngoko ke, kukho flow kwegazi kwelo cala.

Ukuba komzimba entliziyweni bangabi luxanduva yi ngezenzeko lwezidumbu, umsebenzi ngesingqi kwentliziyo. umsebenzi wentliziyo nabanako ukwahlulelana ngayo kwimijikelo - omnye umjikelo iqulathe izigaba ezithathu. Inyathelo lokuqala ukuncitshiswa atriums igazi-kuhluthiswa. Ngokusebenzisa semigudu evulekileyo igazi ongena ventricles, nto leyo yancitshiswa, and vice versa intendelezo - ukhululeke. Ngelo xesha, umsebenzi wakhe yenza vana lokuvala isimangalo ngenxa yegazi. Kwisigaba esilandelayo - kokunqumama, igazi iqukuqela lula, xa intliziyo uphumle. Oku kwenzeka kakhulu elide - uqhekeko yesibini.

Anatomy of the intliziyo, yaye umsebenzi wakhe - buyinto entsonkothileyo kakhulu. Emva innervation ye imisipha yenhliziyo kwenzeka ngenxa ezahlukeneyo izinto ezifana ukuzalana iinkqubo luvo yonyango, ubukho mali olwaneleyo ion potassium kunye calcium. Ukuze ukufunda umsebenzi entliziyweni alungise iingxaki umsebenzi ngentliziyo, yenza i electrocardiogram. Ngoncedo yolu phando, kuba inkoliso simisela lokufunyaniswa ezimbi inhliziyo.