Inkqubo yokujikeleza, eyaziwa njengenkqubo ye-cardiovascular system, iyinto elula yokuqala, kwaye iphelile, ngentliziyo yakho. Yinkqubo evaliweyo, ithetha ukuba igazi alingena okanye lishiye inkqubo ngexesha lohambo oluvela entliziyweni yakho ukuya emzimbeni wakho kwaye ubuyele kwakhona. Kwinkqubo enjalo, ukuhamba okuqhubekayo kotywala olufanayo kunokugqitywa ngokugqithisa kwakhona kwakhona.
Igazi lijikelezwa emzimbeni wakho ngokusebenzisa inkqubo yakho yokuguqula i-arteriial system- iirridwe, i-arterioles, kunye ne- capillaries - kwaye ubuyela entliziyweni yakho nge-systemous venous-veins and venules. Igazi lakho lubalulekile ekuzinzeni kwakho kwaye lijikeleza izondlo ezibandakanya i-electrolytes, i-oxygen, i-carbon dioxide kunye nama-amino acids kuwo wonke umzimba wakho. Intliziyo yakho inoxanduva loluninzi lwenkqubo yomjikelezo we-circulatory and where the process begins.
Ukujikeleza Kuqala Kwintliziyo Yakho
Inkqubo ye-circulatory iqala kwi-atrium yakho yokunene, ikamelo eliphezulu lesandla sokunene lentliziyo yakho. Njengoko igazi lihamba entliziyweni yakho, lidlula nganye kwikamelo elinesine (phezulu ngakwesokudla, ngasezantsi ngakwesokunene, phezulu ngakwesobunxele, ngasezantsi ngakwesobunxele), lithatha indawo esheshayo kwimiphunga ukuze ilahle i-carbon dioxide kwaye ithathe i-oksijeni, iphele kwigumbi elisezantsi elisekhohlo, elibizwa ngokuba yi-ventricle ekhohlo.
Xa kuziwa ekujikelezeni igazi emzimbeni wakho, i-ventricle ekhohlo yindawo ebaluleke kakhulu entliziyweni.
I-ventricle ekhohlo yona mkhulu kunamagumbi amane kwaye uxanduva lokuvelisa amandla afunekayo ukuqhubela igazi lakho kwi-aorta yakho, ityitha yokuqala igazi lakho lingena njengoko liphuma entliziyweni yakho.
Ukususela kwi-Aorta yakho ukuya kuma-Capillaries akho
Igazi lakho lihamba ukusuka kwi-aorta yakho ngokusebenzisa uchungechunge lwemithambo yegazi encinci de lufikelela kuma-capillaries akho.
Ngaphambi kokuba ufinyelele kwi-capillaries yakho, kunjalo, igazi kufuneka lihambe nge-arterioles, apho isivinini sayo kunye neengcinezelo zihlala zilungiswa njengamaqela ahlukeneyo e-arterioles zitshintsha ububanzi ekuphenduleni uxinzelelo kunye neentshukumo zamachiza ezikufutshane. Ezi zivalo zicwangcisa ukuhamba kwegazi nge-arterioles ekuphenduleni imeko eguqukayo emzimbeni wakho.
Ngenxa yezenzo ze-arteriole, ngexesha lakho igazi lifikelela kuma-capillaries akho, asisayi kuhamba ngendlela yokutshiza. Igazi lihamba ngokuqhubekayo ngokusebenzisa i-capillaries, "ayiyi" isikhala "kwaye ikhefu" njengoko intliziyo yakho ibetha. Olu luqhubekayo oluqhubekayo luyimfuneko kuba kukho utshintshiselwano oluqhubekayo lwe-oxygen kunye nezondlo ezenzeka kwiindonga ze-capillary. Akukho iseli emzimbeni akude ne-capillary.
Buyela Eyintliziyo Yakho Naphezu Konke kwakhona
Njengoko igazi lihamba nge-capillaries, ukunikezelwa kwe-oksijini kuncishisiwe kwaye kuye kwathatha iimveliso zentengiso. Ukusuka kwi-capillaries, igazi lingena kwiimvumba, iimvini, uze ubuyele entliziyweni ukuze uhlaziywe uphinde uthunyelwe kwakhona.
Ekugqibeleni, intliziyo yakho isebenza njengompu onika izondlo kuwo wonke umzimba, izicubu, kunye neseli kuwo wonke umzimba wakho. Ngaloo ndlela, iiseli zakho zilahla imveliso yerhasi, njengekhabhoni dioxide, ebuyela egazini lakho ukuba ibuyiselwe entliziyweni yakho.