Njengoba kunikezwe lesi siqephu esiphathelene nenhliziyo yomuntu, ngitshele ngezici eziyinhloko zokwakheka kwenhliziyo yomuntu kanye nenjongo eyinhloko yesitho.
Context:Inhliziyo iyisitho semisipha ezilwaneni eziningi. Lesi sitho siphompa igazi ngemithambo yegazi yesimiso sokujikeleza kwegazi. Igazi eliphonswayo lithwala umoya-mpilo nezakhi zomzimba, kuyilapho lithwala imfucumfucu yemetabolism enjenge-carbon dioxide liye emaphashini. Kubantu, inhliziyo icishe ilingane nesibhakela esivaliwe futhi itholakala phakathi kwamaphaphu, esigabeni esiphakathi sesifuba, esibizwa ngokuthi i-mediastinum.  Kubantu, kwezinye izilwane ezincelisayo, nasezinyoni, inhliziyo ihlukaniswe yaba amakamelo amane: i-atrium ephezulu yangakwesobunxele neyangakwesokudla nama-ventricle aphansi angakwesobunxele nangakwesokudla. Ngokuvamile i - atrium yangakwesokudla ne - ventricle kubhekiselwa kuzo ndawonye ngokuthi inhliziyo yangakwesokudla kanti izimbangi zazo ezingakwesobunxele ngokuthi inhliziyo yangakwesobunxele. Ngokuphambene, izinhlanzi zinamakamelo amabili, i - atrium ne - ventricle, kuyilapho izilwane eziningi ezihuquzelayo zinamakamelo amathathu. Enhliziyweni enempilo igazi ligelezela ohlangothini olulodwa enhliziyweni ngenxa yama-valve enhliziyo, avimbela ukubuyela emuva. Inhliziyo ifakwe esikhwameni esivikelayo, i - pericardium, nayo equkethe uketshezi oluncane. Udonga lwenhliziyo lwakhiwa izingqimba ezintathu: i - epicardium, i - myocardium, ne - endocardium.
Izici eziyinhloko zokwakheka kwenhliziyo yomuntu zingamakamelo ayo amane okupompa igazi. Ngokuvamile inhliziyo ibhekwa njengenohlangothi lwesobunxele nolwesokudla, ngohlangothi ngalunye oluqukethe amakamelo amabili - i-atrium ne-ventricle. Izindlu ezine zizonke zakha izici eziyinhloko zesakhiwo se-organ. Ngokubambisana, banesibopho sokugcina igazi ligeleza emzimbeni ngokusebenzisa isimiso sokujikeleza kwegazi. Inhliziyo iphinde ibe nomthwalo wemfanelo wokuthutha imfucumfucu egazini iye ezithweni eziyicubungulayo.