Mitsempha ya magazi a anthu ndi pomwepo mwazi

Lachitatu, ofanana ndi magazi, panali nthawi yaitali kalelo, mu nthawi ya maonekedwe a zamoyo woyamba multicellular. Iwo ankadziwa kuti zamoyo zokhala ndi selo imodzi ngati m'banja anali osafunika. Koma iye anapereka machitidwe zamoyo zinachita apitirize - unicellular mpaka chakudya chotsatira chidzakhala, koma maselo a zamoyo zambiri zovuta kudyetsedwa stably kwambiri. zomera ngakhale maziko ofanana. Ndipo komabe, nkhani ino ifotokoza munthu mitsempha ya magazi.

ntchito zosiyanasiyana kuti madzimadzi ofiira mu thupi. Komanso magazi dongosolo. Magazi amanyamula ntchito osachepera 6.

1. Iwo "wakudya" maselo ndi zakudya.
2. Kuwapulumutsa kwa zinyalala.
3. Nawo thermoregulation, kupereka zinthu zabwino.
4. Zimafalikira kudzera owongolera thupi - mahomoni.
5. Nawo poyankha cha m'thupi pamene thupi mwadzidzidzi mu "cholakwika".
6. Iwo amalimbitsa zikuchokera kwa nthawi zonse chilengedwe mkati.

maselo magazi anali anatulukira kokha m'zaka 18 mwa maso Kutulukira. Koma pali wina zikuluzikulu za magazi - plasma, mbali madzi mwa iye. Komabe, plasma akadali kangapo viscous kuposa madzi chifukwa ili ndi mapuloteni. Ndipo komabe chopereka ndithu kwa kukhuthala magazi anayambitsa erythrocytes. Ngati tivutika kwa madzi m'thupi, thickens magazi (izi zimachitika pamene thukuta amaika ndi kutsekula m'mimba).

Ambiri a maselo onse ofiira, iwo amapereka mtundu. Komanso uli m'bukuli, ndi msilikali abwino kuteteza motsutsana matenda - lymphocytes, ndi maselo othandiza magazi kuundana ndi zambiri kuti musalole magazi kuyenda kwathunthu mwa bala yaing'ono. Si zonse za magazi, koma ndife chidwi ndi magazi dongosolo lonse la munthu wonse, sichoncho?

Mbaliyi, kuwonjezera magazi, ngakhale ziwiya mtima ndi magazi. Kawirikawiri pamodzi ndi mitsempha ya magazi ndi lymphatic imatengedwa, chifukwa lymph kuti magazi ali kwambiri zogwirizana. Koma mu pepala ili, tilingalira yekha kapangidwe ka m'thupi.

Mtima - zovuta kuti dzanja anakonza ndi limagwirira palokha lamulo, koma maganizo anali ovomerezeka kwa nthawi yaitali. Healthy mtima imakhala atria awiri ndi ventricles awiri. Mbali yaikulu ya mtima - ndi myocardium - ali magazi yake okwanira. Regurgitation mu mtima yachibadwa sizingatheke chifukwa cha dongosolo wapadera wa vavu mtima. Ngati inu kulikankhira chitseko, yomwe imatithandiza kumveketsa mfundo ya "pa", simudzaloŵa mu chipinda kuseri kwa chitseko. The vuto lomwelo ndi magazi, koma "kukokera chitseko," mosiyana inu, simungathe. Anthu mitsempha ya magazi lakonzedwa mwangwiro.

Kudzera mtsempha wamagazi ndi magazi kuchokera mumtima mwa mitsempha - akudza kwa iye. Mu wa zokhudza zonse kufalitsidwa (kuchokera ventricle kumanzere ziwalo ndi kubwerera ku atrium kumanja) mu mitsempha mpweya kulemera magazi, chowala wofiira. Mu mitsempha ya bwalo ili ndi mdima, wodzala ndi mpweya. Mu yaing'ono bwalo (kuchokera ventricle ufulu mapapo, ndipo kuchokera kwa atrium kumanzere) - m'malo mwake.

Wa madzi onse amene muli mitsempha ya magazi, 80% kuchokera mtsempha. Pakati mitsempha ndi mitsempha ndi ambiri mayunitsi microscopically kakang'ono - capillary. Mitsempha ya bwalo lalikulu la magazi kupita zosavuta - posachedwapa izo chapeza patsogolo pa mtima. Koma mu mitsempha ndi ovuta kwambiri - kubwerera, kawirikawiri ndi yokoka, magazi akankhidwira ndi mavavu wapadera. Ndipo kuthandiza mavavu izi yachibadwa chigoba minofu. Choncho, kupewa unsightly varicose mitsempha pa miyendo, muyenera nthawi zonse kuchita masewera alionse, kutanthauza kuti anayenera phazi. Chifukwa minofu miyendo yanu kuthandiza magazi kuti apewe.

Monga mukuonera, munthu mitsempha ya magazi kwatipatsa mpata ambiri ntchito za magazi, chotero kupewa matenda ayenera anachitira ndi kuyambira ali mwana. Munthu wathanzi ndi chokwanira bwino ndi kukhala thupi lamphamvu sing'anga.