Ali pakati vasomotor? losafunika

Dongosolo mtima za thupi ndi zofunika kwambiri. Inde, chifukwa mitsempha ndi mitsempha kumachitika magazi ndi mpweya yobereka. Popanda Mbali imeneyi, anthu sangathe moyo. Ndi udindo nchito imeneyi ya pakati thupi vasomotor. Komanso njira zonse zolimbana, ndi ku ubongo. kumuvulaza ndi woopsa kwambiri ndipo nthawi zambiri atakwatirana ndi moyo. Inde, chifukwa cha pakati vasomotor akubwera yogawa magazi ziwalo. Iye pang'ono nthawi ntchito mtima. Ngakhale kudziyimira pawokha wa myocardium ndi, kulamulira mantha dongosolo akadali zofunika.

Lingaliro la pakati vasomotor

Lingaliro la "pakati vasomotor" chafotokozedwa motere: ndicho mapangidwe anatomical ili ubongo. Komabe, mawu tiyenera kuziganizira kwambiri. Choyamba si thupi, koma ya dongosolo, wopangidwa mwa minofu mitsempha. Chiwalo ndi udindo ntchito yeniyeni. Komabe, iwo onse ntchito pamodzi pofuna kuonetsetsa kuti ntchito ya mapeto a mtima. Izi pakati m'madipatimenti vasomotor imakhudza zimagwirira ntchito koma anatomically. Kuti mwa Ulusi mitsempha. Kwa nthawi yoyamba pa lamulo la kachitidwe mtima, inali kudziŵika m'zaka 19 mochedwa. Kuchititsa zatsopano nyama Ovseanicov wasayansi azindikira kuti kudula minofu mantha ili pansipa colliculus, pali kusintha magazi. Physiologist anati: kuphwanya dongosolo zimenezi zimachititsa ubongo wina ziwiya thambo ndi chiletso ena. Pambuyo nchito imeneyi zolimbana wakhala akufunafuna mwakhama kuphunzira.

Location pakati vasomotor

Akukhulupirira kuti pakati vasomotor lili medulla oblongata. Koma ngati ife kuganizira nyumba zonse zokhudza ntchito zolimbana mwa kundipatsako magazi, chiweruzo zimenezi si zoona kwathunthu. Popeza ulusi vasomotor mitsempha ochokera ku likulu la chingwe msana, ndipo amafotokozera otsiriza ndi kotekisi. Woyamba ndi axons - njira ya maselo. Sami manyuroni zili chapamwamba atatu lumbar ndi onse thoracic msana zigawo chingwe. Yeniyeni kutanthauzira awo - ndi lateral nyanga. Chifukwa cha malo awo amatchedwa malo msana vasoconstrictor. Komabe, dzina ili ndi lolakwika, kuyambira ulusi sangathe kusonkhezera popanda mayunitsi ena. medulla pakati vasomotor lili 4 ventricle. Ndi limodzi la maselo mitsempha. A kutanthauzira molondola pakati vasomotor - ndi m'munsi ndi pakati gawo la fossa rhomboid. Part wa manyuroni ili mu mapangidwe reticular.

Zotsatirazi m'madipatimenti zokhudza limasonyeza zolimbana pakati ndi ubongo imene imalamulira kutentha ndi m'ma ubongo. Pali ili mitsempha ulusi kuti ali ndi udindo kusintha mu ntchito mtima. Ulalo yomaliza amawaona kuti kotekisi ubongo. The zinanso zi- ndi yozungulira injini m'madipatimenti.

pakati Vasomotor: Maphunziro Akakhalidwe Kazolengedwa za thupi

Ngati ife kulingalira mbali zonse za dongosolo vasomotor kuchokera pansi mmwamba, muyenera kuyamba ndi manyuroni ili mu chingwe msana. Iwo achoke chifundo axons preganglionic (ulusi). mayunitsi sangathe kulamulira kamvekedwe chawo, koma iwo zimafalitsa zikhumbo maselo ena mitsempha ndi ziwiya. Kwa nthawi yoyamba pa phindu anazindikira wasayansi Ovsyannikov tizitsatira anapeza lalikulu Maphunziro Akakhalidwe Kazolengedwa. Iye anapeza kuti kulekana kwa ubongo ndi msana amapezeka akuponya magazi. Komabe, patapita kanthawi kachiwiri izo kumawonjezera magazi (m'munsimu m'mene ziriri pano) ndi imayendetsedwa paokha chifukwa ulusi preganglionic. The medulla oblongata ndi likulu - vasomotor. Ndi udindo lamulo la dipatimenti msana. Maphunziro Akakhalidwe Kazolengedwa wake ndi: manyuroni ili pakati, ogaŵikana mitundu 2. Woyamba ndi amene pressor ntchito (vasoconstriction). Gulu lachiwiri amachititsa zosangalatsa za endothelium. Akukhulupirira kuti manyuroni udindo vasoconstriction paliponse mu chiwerengero. Maselo pano mu midbrain, akhoza kuyambitsa kuthamanga magazi. The manyuroni wa dera hypothalamic M'malo mwake, n'kumaganiza depressants, ndiyo kukhala ndi zosangalatsa ziwiya magazi. Ambiri mwa ulusi mitsempha kudutsa pakati, yomwe ili medulla oblongata. Komanso, mbali ya axons msana kulumikiza mwachindunji olekanitsidwa ndi ubongo imene imalamulira kutentha. Front kotekisi kwambiri moyo wa phindu ndi chopinga za ntchito ya manyuroni ili mu kulumikizana m'munsi.

Gulu la pakati vasomotor m'madipatimenti ndi

Popeza kuti malamulowo ikuchitika mwa mayunitsi zingapo ya ubongo, n'zotheka kuonetsetsa zotsatirazi pakati m'madipatimenti vasomotor:

1. Msana. Nyanga lateral wa thoracic ndi lumbar zigawo ndi preganglionic phata. Iwo achoke axons ndi - ulusi.
2. Mwachindunji malo vasomotor. M'chigawo chino zili ndi manyuroni amachititsa zosangalatsa za endothelium ndi vasoconstriction.
3. Midbrain. Maselo zilipo mu gawo limeneli, angachititse kuchepetsa wa pakhoma chotengera.
4. Hypothalamic m'deralo. Manyuroni ali ndi udindo kwa zosangalatsa minofu mtima, kugwirizana ndi onse pakati palokha, ndipo mosiyana ndi maselo msana.
5. MUNDA kotekisi. Ngakhale kuti ambiri a manyuroni a m'dera kutsogolo, n'zotheka chikoka zinthu zina ubongo.

Ngakhale pamaso pa m'madipatimenti 5, zamaganizo anagawa vasomotor lamulo 2 yekha Ngopambana. Zikuphatikizapo msana ndi bulbar dera la usasungunuke. Mu zikuchokera zake zonse maselo ena mitsempha, zokhudza mtima kamvekedwe. classifications onse amaonedwa chomveka.

pakati Vasomotor Thupi

Monga amadziwika, cholinga chachikulu ndi malangizo kamvekedwe pakati vasomotor. Aliyense wa ziwalo imagwira ntchito yake. Komabe, kuzimitsa kugwirizana chimodzi kumabweretsa kusokonezeka kwa mitsempha ya magazi a thupi lonse. Kuonetsetsa ntchito zotsatirazi:

1. Kuchititsa nyemba (zizindikiro) ku zigawo yokhudza kotekisi ndi medulla kwa periphery lapansi. Amenewa amanena za zotsatira za manyuroni ziwiya kupereka ziwalo. nchito imeneyi ikuchitika chifukwa cha msana ulusi preganglionic.
2. Chisamaliro cha kamvekedwe mtima. Ntchito bwinobwino, aliyense dipatimenti magazi anakhalabe pa mlingo woyenera.
3. Yosangalala ndi vasoconstriction. Siwokhuzidwa ndi malo ili mu medulla oblongata.
4. Kuonetsetsa magazi okwanira ndi kugawa ake aliyense limba.
5. Thermoregulation. nchito imeneyi imagwiridwa ndi kusintha mu lumen mtima. kuwonjezeka awo anamuona pa chilengedwe ofunda, ndi chiletso limapezekanso pa kutentha otsika.

mogwirizana ndi pakati mtima

Kuwonjezera pa mfundo yakuti pakati vasomotor ndi udindo patsogolo ndi chidule cha minofu za indofeliyamu, alinso zimakhudzanso minofu mtima. Zimenezi zimaphatikizapo maselo mu lateral gawo 4 fossa ventricle. Amadziwika kuti innervation za mtima ikuchitika chifukwa cha ulusi chisoni. Pa iwo ndi zilakolako za medulla oblongata. Chifukwa cha kutsegula za mtima. Izi ziri kuwonetseredwa ndi tachycardia. The chifooke ntchito mtima wa manyuroni pakati vasomotor naonsO angapezekeko. Iwo zili mu gawo medial. Kuyambira pamenepo, zizindikiro kupita dorsal mtima wa mitsempha vagus. Ngakhale kuti munthu ntchito ya minofu mtima ndi automatism, kugwira ntchito sizingatheke popanda nkhani ya ubongo.

Lamulo pakati vasomotor

Chikoka pakati vasomotor manyuroni ili mu medulla, mulole yokhudza kotekisi dongosolo. Ndipotu iwo ali limagwirira yaikulu ya malamulo a magulu a m'munsi. manyuroni yokhudza kotekisi zingachititse onse kuchepa ndi kuwonjezeka mu ntchito pakati vasomotor. Komanso, palinso reflex lamulo. Iwo ikuchitika ndi carotid nkusani ndi kung'ambika Chipilala. Ichi ndi chifukwa mechanoreceptors lapansi. Padziko nyemba aukitsidwa pamodzi vagus ndi depressor misempha ku malo vasomotor. Pa yemweyo nkhawa ntchito za Dipatimenti imeneyi kumatheka. Chifukwa, Mitsempha kumasuka ndi magazi. vasodilation kumachititsanso kutsegula wa phata la misempha vagus.

vasomotor kusintha malo kamvekedwe

Mchikakamizo cha zinthu zosiyanasiyana zimachitika dysregulation. Chifukwa cha vasomotor kamvekedwe zimasiyanasiyana pakati. Pansi bwinobwino zinthu, zimachitika ndi lamulo reflex. Pamene kudwala ndi kuphwanya kamvekedwe. Zitsanzo ndi matenda osiyanasiyana mtima, atherosclerosis, kunenepa. Komanso, kuchepetsa kapena kuwonjezeka kamvekedwe zikhoza kusintha atamwa mankhwala (mankhwala antihypertensive, vasopressors).

Mmene mankhwala pa mtima Center

zimakhudza mwachindunji zimagwirira zonse za dongosolo mtima akhoza kukhala zinthu mankhwala mu thupi. Chitsanzo ndi mpweya woipa amene amasonkhana magazi pa akusowa mpweya (apnea). Mchikakamizo cha mankhwala amalimbikitsidwa pakati vasomotor. Zikavuta, yaitali kusowa kwa mpweya kungachititse kuti ziwalo.