Mitsempha ya magazi

Kachitidwe ka munthu wina nyama imakhala ndi ziwalo gulu magazi omwe nawo magazi. Chifukwa cha ntchito mwake ndi anasamutsidwa kuchuluka kwa mpweya ndi zakudya, mahomoni ndi michere komanso zinthu zina zofunika. Komanso, dongosolo magazi amachita ntchito yachiwiri. Pamafunika maselo ndi zinyalala kuwombola akutenga ku ziwalo zonse za thupi anapanga m'menemo mpweya. A maukonde lovuta limene koyenera kuti kugwira ntchito kwa chamoyo zinthu zaperekedwa mu nonse a m'nthawi yake, anapanga kuchokera zida, mtima ndi magazi yokha.

System ntchito m'dipatimenti onse zakudya ziwalo, zochokera ntchito minofu m'mnyewa wamtima. Ndiko kuti, kuchita ntchito ya mpope, ikukoka magazi pa liwilo. Mtengo wa kuchulukitsa ichi ndi wofanana ndi mamita khumi pa mphindi. Pamene contractions wa minofu mtima mu kuthamanga madzimadzi zachitika, wotchedwa kwambiri. Ndi pamwamba mumlengalenga. nkhawa kwambiri ndi zochiritsira akutchedwa magazi. kayesedwe zimayamba ndi ya ziro ofanana ukulu vuto mumlengalenga. Mkati mphindi imodzi ntchito wachita boma quiescent wa thupi, mtima mapampu kudzera yokha zayamba 3.6 malita a magazi kuti kukhala voteji mkati umatulutsa. magazi amatenga mtengo wake pazipita pa nthawi malamulo ndi kuchepetsa (systole). Pamene m'mnyewa wamtima yosangalala (diastole), ndi voteji mkati akutsikira ziro.

Mitsempha ya magazi Intaneti ake transmits magazi. Umadutsa ziwiya, kuyambitsa madzi ndi osalimba wa magalamu 1,06 pa centimeter kiyubiki. otaya magazi akuyenderera dongosolo, kuphatikizapo mitsempha ndi mitsempha yaikulu. Izi ziwiya nthambi mobwerezabwereza ndi pang'onopang'ono kuchepa mu kukula kwa capillaries zazing'ono. The otaya magazi ikuyenda pa liwiro yopatsidwa ndi kayimbidwe kotani mtima. Pa kayendedwe ka madzi kumakhudzanso mavuto mkati ndi lumen awiri chotengera. Mitsempha ndi anadutsa mtsinje wa magazi pa masentimita makumi asanu pa mphindi. Mu mitsempha kufunika kwake ndi makumi awiri masentimita / s. The capillaries ndi ambiri otsika liwiro chifukwa awiri awo ang'onoang'ono. Ndi millimeters osachepera awiri pa mphindi. Pamene kuthamanga nyemba ndi kuletsedwa mu capillaries.

Voliyumu ya m'thupi ndi wamkulu kwambiri kuposa kuchuluka m'magazi a thupi. Kabukuka kali ndi chikwi chimodzi chokha makumi anai. Pali zifukwa. Ngati zinthu kuwuka zimene amafuna otaya magazi kwa ziwalo, lidzachokadi m'njira yoyenera.

Matenda a mtima ziwiya ndi magazi nthawi zonse zimadutsa amalola magazi mu makona ya, womwenso mapapo, minofu, myocardium ndi chiwindi. Pankhaniyi, zofunika zakudya kudutsa mitsempha ndi capillaries, ndi kulowa yonse yochepetsetsa ya thupi, amathandiza kuti uziyenda yachibadwa ya thupi. Pamene kupanga minofu mtima ndi mtima zochitika pathological zimachitika matenda magazi. matenda njirazi ndi izi:

- pachimake enaake ophwanya malungo mtundu;

- ischemic matenda a minofu mtima;

- matenda amene anatsagana ndi kuwonjezeka mu magazi;

- enaake ophwanya aakulu matenda a mtima;

- kuphwanya makope m'mapapo mwanga magazi;

- matenda cerebrovascular;

- matenda a capillaries ndi mitsempha;

- matenda a mitsempha, ziwiya lymphatic ndi mfundo;

- ziwiya zina ndi matenda a mtima.

mitsempha ya magazi, komanso matenda akewo chimakhudzana akuonetsedwa sayansi mankhwala. Chifukwa cha ichi ndi akumane zowerengera deta kuti kuika mtima ndi matenda mtima mu malo oyamba mu dziko mawu a imfa.