Kungani kukhona ukusinda inhliziyo?

Izibilini nenhliziyo yomuntu kuyinto isitho kwemisipha kokuba Ubukhulu cishe isibhakela umuntu ngoMnikazi walo. isisindo umzimba yisilinganiso sesifundo 300 amagremu abesilisa 250 amagremu - kwabesifazane. Inhliziyo afanako ihlukaniswe yaba izingxenye ezimbili - kwesokudla noma kwesokunxele. ingxenye ngasinye siqukethe emakamelweni amabili. I engenhla ekamelweni - ATRIUM - eyenzelwe nokuqoqwa kwegazi. Ikamelo elingaphansi ngokuthi i-ventricle, lapho kukhona itheku futhi esidayisa valve ukuvimbela backflow wegazi. Izindonga kwangaphakathi futhi septum wenhliziyo siqukethe imisipha eziyinkimbinkimbi egqinsiwe, ngokuthi myocardium.

Umsebenzi oyinhloko inhliziyo - ukunyakaza okuqhubekayo isiyingi egazi emzimbeni. I pulses ngokuzenzakalelayo ukuze zehlise yena. Le mpahla self-excitation kuhlinzekwe yinkampani uhlelo conductive kubekwe phakathi myocardium. Lolu hlelo uyakwazi odala pulses ayo futhi inikeza pulses kagesi okuyinto ezidla kusukela isimiso sezinzwa. Zonke pulses bebonke kubangele excitation nokuncipha we myocardium. Sami pulses zenzeka kwelinye izindawo inhliziyo - ku ATRIUM kwesokudla. Baphoqekile ukuba enze Kufinyeta onesigqi.

Lokhu umzimba has a umthwalo okukhulu, kangangokuba kuvame kungaphansi amathonya ahlukahlukene ezimbi. Sijwayele uzizwa ukusinda esifubeni. Abanye benza iphutha ukucabanga ukuthi kubuhlungu ibele noma esifubeni, kodwa yena ikhanda akezi, kuba kobukhulu inhliziyo. Lokhu kusho ukuthi kwakunezinkinga emsebenzini wonke umzimba noma imithambo yegazi, okuyinto distilled igazi enhliziyweni. Ziyini izimbangela imizwa ebuhlungu, kungani kukhona ukusinda inhliziyo?

1. Lapho nakho eside ukucindezeleka noma adedelwa adrenaline igazi - hormone yokucindezeleka, elibangela olugcwele futhi semithambo zibe, kobukhulu inhliziyo. Kulokhu, kwegazi, ngenxa yalokho, ophilisayo kwenhliziyo, umuzwa Ukuphelelwa, ukungakhululeki. Kukhona ubuhlungu ngesimo esibuhlungu ebeleni ngakwesokunxele, umuzwa lokho okubizwa ngomlobokazi "yinhlama emphinjeni." Lezi zimpawu kungukuthi ezihlobene umsebenzi ngokomzimba nemibhikisho kwaqina.

2. Esinye isizathu sokuba ukubonakala gravity - hormone iziyaluyalu. Babonakala ngokuvamile ngaphambi noma esesikhathini, lapho umzimba ihlelwe kabusha kwama-hormone. Ngalesi sikhathi, nizitholele wagwaza ubuhlungu enhliziyweni, kwandisa ne ugqozi. ibhalansi hormone kwabesifazane ngesikhathi menopause wakhiwa, futhi ngalesi sikhathi njengoba kukhona ukusinda inhliziyo abonisa ngayo ngokucindezelwa, ukuthunga kanye kokucindezelwa emizweni. Ugxumela blood pressure ngalesi sikhathi futhi okungase kubangele ukungasebenzi kahle engazinzile futhi zaba namandla kakhulu.

3. Isikhathi esining impela, ubuhlungu futhi ukusinda inhliziyo zenzeka dystonia semithambo. Lezi izinhlungu ziwuhlobo ezahlukene futhi zifana yisifo senhliziyo noma angina. Kulokhu, ukusetshenziswa nitroglycerin kungasizi, ngoba ubuhlungu emzimbeni ongakaphathelani kokuvivinya umzimba.

4. kubathinta kabi inhliziyo futhi jet Lag, kungaba ngenxa ebusuku abafela, ukuntuleka usuku lokuphumula, ushintsho jet lag. Ezimweni ezinjalo, izitsha inhliziyo negazi ubusuku nemini, umthwalo ukuhlolwa, ngemva kwalokho vasospasm nomfutho wegazi kuyanda kungenzeka. Ukuqala ukusihlupha izinhlungu ukuphokophela noma sigameko.

5. nethonya elilimazayo futhi ukuphuza (avamile noma eside) ukusebenzisa uphuzo oludakayo. Utshwala ingena egazini, imizuzu embalwa nje kakhulu kwandisa ukuvama ukusikwa imisipha yenhliziyo, kwandisa nokukhishwa kwe-adrenaline. Ngenxa yalokhu, esivimba amanzi nomoya-mpilo funa inyuka, okuyinto, kube sekwandisa inhliziyo isidingo igazi ngaphezulu. Kukhona ngukujabha esifubeni, inhliziyo isigqi kuyaphazamiseka.