Kodi magazi amatha kuti?
Aliyense akudziwa bwino kayendedwe ka kayendedwe ka madzi: "tubules" osiyana siyana, omwe mtima umapuma magazi, kubweretsa oksijeni kumbali zonse za thupi kupuma ndi zakudya kwa ... zakudya, ndithudi. Chabwino, izo zimatengera zonse muck, monga inu mukudziwa, kubwereranso ku magazi, omwe inu simukufuna ngakhale kuyankhula nawo. Komabe, ngati mukuganiza mozama za momwe izi zimachitikira pakuchita, zimakhala zomveka kuti palibe "zigawo za thupi" palimodzi kapena, kuti zikhale zosavuta kwenikweni, komiti yaying'ono, koma pali maselo osiyana okha a maselo osakanikirana momwe mkati mwake kupuma kulikonse kodabwitsa komwe kumachitika -kupatsa mphamvu. Selo lirilonse lazunguliridwa ndi chipolopolo chotsekedwa, palibe "pakamwa" ndipo, pepani, palibe kutsegula koyamba. Kodi zinthu zogwiritsa ntchito magazi zimakhala ndi selo motani? Mu 1661 wasayansi wa ku Italy Malpighi adapeza "yachiwiri", monga chinsinsi, kayendedwe ka kayendedwe kake.
Ponena za kuphwanya kwa microcirculation mu thupi laumunthu kanalankhula posachedwa chifukwa cha kuwonongeka kwa chilengedwe, kuwonjezeka kwa nkhawa komanso nthawi yomweyo - chikhumbo cha anthu kuti adzikonzekerere ndikukhalitsa nthawi yogwira ntchito. Anthu omwe alibe maphunziro azachipatala, kawirikawiri amakhulupirira molakwitsa kuti matenda a microcirculation ndi dzina la sayansi la matenda a mtima. Ndipotu, izi ndizosiyana kwambiri ndi zovuta za thupi.
Mitsuko yamagazi , monga momwe ikudziwira, m'ziwalo za thupi zimatulutsa kulikonse kumene zing'onozing'ono zombo zimayambira pa capillaries zazikulu ndi kumene kayendedwe ka kayendedwe kamene timadziwira kakatha ndipo kamene kamakhala kosiyana kwambiri ka magazi kamayamba, kumene malamulo a hydrostatics ndi hydrodynamics ndi osiyana kwambiri ndi mitsempha yeniyeni mitsempha. Pano, njira zonsezi zakhala pafupi kale pa maselo a maselo, chifukwa khungu limodzi lokha la magazi likhoza kudutsa capillary lumen, ndipo erythrocytes (ogwira oksijeni) ayenera "kufinya" mwakhama. Kotero apa ife sitikuchita ndi zochitika zathupi, madzi-magazi, koma ndi maselo payekha ndi mamolekyu.
Chinsinsi cha Mphamvu Yamuyaya
Kuchokera pa zomwe zanenedwa pamwambapa n'zoonekeratu kuti ngakhale ndi mtima wogwira ntchito komanso kayendetsedwe ka magazi mwa mitsempha ya magazi m'magazi a microcirculation, pazifukwa zosiyanasiyana zingakhale zosokonezeka, nthawi zambiri zimapita nthawi zosadziwika. Kuphwanyidwa kwa microcirculation ndi states zimatchedwa pamene ma capillaries okha amakhudzidwa, ndipo ndi ziwiya zazikulu zonse ndizochitika. Zozizwitsa zoterozo zimatchedwa ischemic, ndipo potsirizira pake zimatsogolera ku: kufooka, kutopa, kuchepa kwachangu, mavuto a m'maganizo, ndi matenda osiyanasiyana a ziwalo zosiyanasiyana, omwe ambiri "odziwika" ndi angina pectoris ndi ena.
Nkhani yofulumira
Pali zochitika zomwe nthawi zambiri matenda osokoneza bongo omwe sagwiritsidwa ntchito, amakhala oonekera. Nthawi zina izi zimakhala chitetezo cha thupi, kuthandizira kuthana ndi vuto, ndipo nthawi zina - vuto ndi thanzi komanso moyo.
Kuvulaza. Aliyense wa ife amadziwa bwino momwe zimakhalira: choyamba chovulalacho chimasintha - mitsempha ya vasoconstrictor idachitapo kanthu. Kenaka kuzungulira kumeneko kuli erythema - kumangokhalira kutulutsa ma capillaries ndi ziwiya zing'onozing'ono, kuthamanga kwa magazi kumafulumira. Magazi amagaziwo amatha kupitirira pang'onopang'ono, pali kutupa, ndipo magazi amayamba kuphulika ndipo amayamba kugwirana, timayambitsa tizilombo toyambitsa matenda - pamapeto pake, magazi amayenda m'mabedi ochepa. Chifukwa cha izi, kupweteka kwa kupweteka kumachitika.
Kupanda mphamvu. Kusokonezeka kwa ma microcirculation amadziwika kuti ndi chifukwa cha mavuto a erectile mwa amuna.
Osokoneza . Vuto lovuta kwambiri ndi pamene microcirculation mu ziwalo zonse zamkati zimasokonezeka nthawi imodzi. Njira yoyendetsa magazi imatha kulephera kupereka ziwalo ndi ziphuphu zokwanira ndi mpweya ndi zakudya (pambuyo poopsya, matenda aakulu, matenda, kutentha kwakukulu, kutayika magazi). Choyamba, kuchuluka kwa mtima kumachepa kwambiri, ndipo pofuna kuchepetsa kupweteka kwa m'mimba, mitsempha ya magazi ikugwira ntchito mwamphamvu, kenako magazi amathamanga m'madzimadzi otsika amayamba kuchepa, timadzi timene timatulutsa timadzi timene timayambira. Ndiye pamakhala magazi ochulukirapo m'magazi a capillaries, njira zamagetsi zimayamba kuvutika, mankhwala opweteka amadzimadzi amasonkhanitsa m'maselo, chifukwa cha izi zimakhala ziwalo za ma capillaries: zimayambira kutuluka madzi, ngati sieve, ndipo plasma ya magazi imalowa m'matumbo. Momwemo, magazi mkati mwa zitsulo amachepa ndipo mtima tsopano ulibe kanthu koti upope. Kuchuluka kwa mankhwala a mtima kumathamanga kwambiri - kutentha koopsa kwatseka. Motero mawonetseredwe a mantha: kufooka, kulepheretsa - kutayika, kugwedeza kwa magazi a 80/25 mm Hg. Art. ndipo pansipa, khungu limakhala lozizira, lopaka nthaka, nthawi zina losalala, lonyowa chifukwa cha kuphulika kwa magazi mu capillaries, ulusi wonga ululu. Mu impso, kumwa kwa mkodzo kumayima, m'chiwindi - kukonza zinthu zovulaza, m'mapapu - kupuma kwabwino: kudzipha kumapezeka.
Khungu. Pano, vuto la microcirculation mu ziwiya za tsiku la maso silo chifukwa, koma zotsatira za shuga. Kuchepetsa masomphenya kumadalira pa siteji ya shuga, nthawi zambiri imachedwa mochedwa ndipo sizingatheke kuchiza, koma matenda a shuga amatha kutetezedwa.
Mwachibadwa, chikhalidwe choterocho chimawopsyeza moyo, motero, polimbana ndi zoopsya, otsitsimutsa amabwezeretsanso tizilombo toyambitsa matenda. Kuti muchite izi, gwiritsani ntchito: kutaya kwa magazi kumutu ndi ubongo. Mtsamiro umachotsedwa pansi pa mutu, umayikidwa pansi pa mapazi - kotero kuthamanga kwa magazi kumutu ndi ubongo kumakula.
Olimba amphamvu: ephedrine, epinephrine, norepinephrine. Mwachizoloŵezi chochita, dokotala wamakono sadzawaika konse, iwo amagwiritsidwa ntchito pokhapokha mu chisamaliro chachikulu. Amachita mwachidule komanso mofulumira m'thupi.