Ngaba wakha wakwenza oku? Xa uphakama ngequbuliso esitulweni, ebhedini, okanye esitulweni, uziva unesizungu, umbono wakho uba mnyama, kwaye uzive utyhafile. Le yinto eqhelekileyo kubantu abaninzi. Uninzi lwexesha, silinda nje imizuzwana embalwa size sibuyele emsebenzini. Kodwa ngaba wakha wazibuza ukuba kwenzeka ntoni ngaphakathi emzimbeni wakho ngelo xesha? Umzimba wakho unenkqubo ekhawulezayo kakhulu, ezenzekelayo esebenza ukukukhusela. Namhlanje, siza kuthetha ngale nkqubo imangalisayo.
Yintoni le Baroreceptor Reflex?
Ngamafutshane, esi sisilawuli soxinzelelo lwegazi oluzenzekelayo lomzimba wakho. Khawuthelekelele ukuba xa utshintsha indawo ngequbuliso, ingakumbi xa umi kwindawo ehleli okanye ulele, uxinzelelo lwakho lwegazi luyehla kancinci ngequbuliso. Ngamaxesha anje, uthotho lwezenzo zomzimba ezikhawulezayo zokugcina uxinzelelo lwakho lwegazi lukwinqanaba eliqhelekileyo lubizwa ngokuba yi-'Baroreceptor Reflex'.
Oku kukhawuleza kakhulu. Le nkqubo yonke yenzeka ngexesha intliziyo yakho ibetha kube kanye okanye kabini. Le yeyona ndlela ibalulekileyo yokulawula uxinzelelo lwegazi lwethu kwixesha elifutshane.
Isebenza njani le nto? Yindlela emangalisayo kakhulu!
Ukuze siqonde oku, masisebenzise umzekelo olula. Khawuthelekelele ukuba imithambo yegazi yakho ifana neetyhubhu zerabha. Njengoko inani legazi elihamba kwezi tyhubhu lisanda, iindonga zeetyhubhu ziyanwebeka. Njengoko inani legazi lincipha, olu nwebeka luyancipha.
Umzimba wakho une-nerve end ekhethekileyo ebizwa ngokuba yi-baroreceptors . Ezi zifana nee-small sensors . Zifumaneka ikakhulu kwimithambo yegazi emikhulu entanyeni yakho, umthambo wegazi oyintloko ophuma entliziyweni yakho. Ezi sensors zinokuqonda ukuba lungakanani na uxinzelelo olufakwayo kwezo ndonga zemithambo yegazi.
Ngoku into omawuyibukele:
1. Ukuba uxinzelelo lwegazi luqhelekile okanye luphezulu: Iindonga zemithambo yegazi zoluliwe kakuhle. Ezi sensor zithumela loo myalezo engqondweni, "Kulungile, uxinzelelo apha lulungile, akukho ngxaki." Emva koko ingqondo iyavuya ngaloo nto.
2. Ukuba uxinzelelo lwakho lwegazi luyehla (kwenzeka ntoni xa uphakama ngequbuliso): Xa uphakama ngequbuliso, amandla adonsela phantsi abangela ukuba igazi elithile lihambe liye emilenzeni yakho. Emva koko inani legazi eliya entlokweni yakho liyehla kancinci, kunye noxinzelelo lwakho lwegazi. Ngoku uxinzelelo olukwiindonga zemithambo yegazi luyehla ngequbuliso. Nje ukuba izinzwa zethu zive oku, ziyaphakuzela zize zithumele umyalezo ongxamisekileyo engqondweni, zisithi, "Ingozi! Uxinzelelo apha alwanelanga! Iindonga azisoluli!"
3. Impendulo yengqondo ekhawulezileyo: Ingqondo iyasebenza kwangoko nje ukuba ifumane lo myalezo. Kufana nokuphendula umnxeba ongxamisekileyo. Ingqondo ithumela imiyalelo ngoko nangoko kwinkqubo yakho yemithambo-luvo:
- Kwimithambo yegazi: "Qinisa ngokukhawuleza!" Xa imithambo yegazi incipha kancinci, uxinzelelo olungaphakathi kuyo luyanda ngokuzenzekelayo.
- Entliziyweni:"Betha ngokukhawuleza nangakumbi!" Oku kwandisa isantya sentliziyo kunye namandla ezihlunu zentliziyo ezifinyelayo, kupompa igazi elingakumbi emzimbeni.
Konke oku kwenzeka kwimizuzwana embalwa. Yiyo loo nto nokuba uziva unesizungu, kuya kuphela ngokukhawuleza. Le nkqubo imangalisayo ikugcina ungalahlekelwa zingqondo.
Le reflex yenzeka nini?
Le `Baroreceptor Reflex` ingasetyenziswa nanini na xa kukho utshintsho kuxinzelelo lwegazi lomzimba wakho. Umzekelo:
- Xa utshintsha indawo: Ingakumbi xa umi ngequbuliso uhleli phantsi.
- Xa ngequbuliso usoyika: Khawuthelekelele uhamba esitalatweni uze ngequbuliso inja itsibe phambi kwakho. Ngelo xesha, uxinzelelo lwakho lwegazi nalo luyatshintsha, kwaye le nkqubo iyalulawula.
- Xa utshintsha indlela yakho yokuzilolonga: Ukuba utshintsha indlela ohamba ngayo uye ekubenileka, umzimba wakho udinga igazi elingakumbi. Le nkqubo ikwangenelela kwaye ilungise uxinzelelo lwegazi kunye nesantya sentliziyo yakho njengoko kufuneka.
Ngamafutshane, i-`Baroreceptor Reflex` sisikhuselo esingathethiyo esisebenza imini yonke ukugcina uxinzelelo lwegazi lwakho luzinzile ngaphandle kokuba wena uqaphele.
Zithini iindawo zale nkqubo? Ziphi?
Le ayisiyonto ikwindawo enye. Le yinethiwekhi yeenxalenye ezininzi ezisasazeke emzimbeni wonke. Ezi receptors zifumaneka kakhulu entliziyweni yakho, kwimithambo yegazi entanyeni yakho, nasemiphungeni yakho. Ulwazi oluvela apho luya engqondweni, kwaye lucutshungulwa kuyo yonke inkqubo yemithambo-luvo.
Jonga itheyibhile engezantsi ukuze ufumane izinto eziphambili zale nkqubo.
| Inxalenye yenkqubo | Kalula nje... |
|---|---|
| Ii-Baroreceptors | Ezi zizixhobo zokulinganisa uxinzelelo lwegazi. Zifumaneka kwimithambo ye-carotid entanyeni nakwi- aorta yentliziyo. |
| Iisensors kwigumbi lentliziyo kunye nemiphunga | Kukho izixhobo zokuvavanya ezinje ngaphakathi entliziyweni nakwimithambo yegazi yemiphunga. |
| Imithambo-luvo yentloko | Ezi mithambo-luvo zithwala imiyalezo esuka kwiisensa ukuya engqondweni. |
| Inkqubo yeNervous eZilawulayo | Ineenxalenye ezimbini (iSympathetic kunye neParasympathetic) . Le nkqubo iqhuba imiyalelo evela engqondweni. Ilawula isantya sentliziyo kunye nokuxinana kwemithambo yegazi. |
| IiArterioles | Le yeyona mithambo yegazi mincinci emzimbeni. Ukuxinana kwayo nokwandiswa kwayo kubalulekile ekulawuleni uxinzelelo lwegazi. |
Ziziphi izifo ezichaphazela umsebenzi wale reflex?
Ezinye iimeko zonyango zinokuphazamisa ukusebenza kwale `Baroreceptor Reflex`. Oku kunokubangela ukungakwazi ukulawula uxinzelelo lwegazi ngokufanelekileyo. Ezinye zezi meko ziquka:
- Isifo sikaParkinson
- Uxinzelelo lwentliziyo (i-broken heart syndrome)
- Ukulimala komqolo
- Uhlobo 1 okanye Uhlobo 2 lweswekile
- I-Postural orthostatic tachycardia syndrome (i-POTS)
- I-Lewy body dementia
Ukongeza, ezi sensors zingonakaliswa ziithumba entanyeni okanye utyando olwenziwe entanyeni.
Zithini iimpawu xa le reflex ingasebenzi kakuhle?
Xa le nkqubo ibuthathaka, umzimba awukwazi ukulawula uxinzelelo lwegazi ngokukhawuleza, kwaye iimpawu ezinje ngezi zinokwenzeka.
| Uphawu | Intsingiselo |
|---|---|
| Uxinzelelo lwegazi olungazinzanga | Uxinzelelo lwegazi luhlala lunyuka lusehla ngaphandle kwesizathu. |
| Ukuncipha kokunikezelwa kwegazi kwizitho zomzimba | Izitho ezibalulekileyo ezifana nobuchopho nezintso azifumani gazi laneleyo, nto leyo enokubangela isiyezi kunye nokudideka. |
| I-Tachycardia | Ukunyuka okugqithisileyo kwesantya sentliziyo. |
| Isantya sentliziyo asinyuki njengoko kufuneka | Ukungakwazi komzimba ukunyusa izinga lokubetha kwentliziyo njengoko kufuneka ngexesha lokuzilolonga, njengaxa uzilolonga. |
Zeziphi iimvavanyo ezenziwayo ukuze kubonwe ukuba kukho ingxaki na ngale nto?
Ukuba ugqirha wakho ukrokrela oku, unokucebisa ezinye iimvavanyo, ezifana nezi:
- Ukujonga uxinzelelo lwegazi: Usenokucelwa ukuba unxibe isixhobo esikhethekileyo esilinganisa uxinzelelo lwakho lwegazi iiyure ezingama-24 (ukujonga ukuhambahamba iiyure ezingama-24).
- Ukulinganisa izinga lokubetha kwentliziyo: Uvavanyo olufana ne-ECG.
- Indlela yokusebenzisa iValsalva: Oku kuquka ukukucela ukuba ubambe umphefumlo wakho kwaye wenze i-push-up, ngelixa ujonge indlela isantya sentliziyo yakho kunye noxinzelelo lwegazi olutshintsha ngayo.
- Uvavanyo lwegazi: Jonga ezinye iimeko zempilo, ezifana nesifo seswekile.
Zithini iindlela zokunyanga oku kwaye singenza ntoni?
Unyango lobuthathaka be-"Baroreceptor Reflex" luxhomekeke kwisizathu. Ngamanye amaxesha, ugqirha wakho unokukunika amayeza afana nala ukunceda ukulawula uxinzelelo lwakho lwegazi:
- `I-Midodrine`
- `I-Droxidopa`
- `I-Fludrocortisone`
Kubaluleke kakhulu: Ungaze uwasebenzise la mayeza ngaphandle kwengcebiso kagqirha . Afanele asetyenziswe kuphela kwidosi emiselweyo kwaye asetyenziswe ixesha elithile.
Ukongeza kumayeza, ukugcina indlela yokuphila esempilweni kubaluleke kakhulu.
Izinto esinokuzenza ukuze sihlale sisempilweni
Ukuze uxinzelelo lwakho lwegazi luhlale luzinzile, ungathetha nogqirha wakho uze ucinge ngezi zinto:
- Ukutya okunempilo: Yitya ukutya okunesondlo, ityuwa encinci, kwaye utye iziqhamo nemifuno eninzi.
- Ukulungisa amanye amayeza: Ukuba usebenzisa amanye amayeza achaphazela uxinzelelo lwakho lwegazi, thetha nogqirha wakho malunga nokutshintsha umthamo wawo.
- Isibopheleli sesisu: Le yibhanti enxitywayo ejikeleze isisu. Oku kunokunceda abanye abantu ukuba bonyuse uxinzelelo lwabo lwegazi. Buza ugqirha wakho ngale nto.
- Ukuphepha izinto ezibangela oku: Ukuba unale meko, chonga izinto eziphakamisa okanye ezithoba uxinzelelo lwakho lwegazi uze uzame ukuziphepha.
Xa usukuma uze uqale ukubaleka, usenokungaziboni ezi nguqu zimangalisayo emzimbeni wakho. Kodwa i-'Baroreceptor Reflex' yakho isebenza buthule kwaye igcina uxinzelelo lwakho lwegazi lukwinqanaba elifanelekileyo. Kodwa ukuba uhlala uziva unesizungu okanye utyhafile, musa ukuyityeshela nje. Qiniseka ukuba ubona ugqirha wakho ukuze ufumane unobangela.
Umyalezo Wokuya Ekhaya
- I-`Baroreceptor Reflex` yinkqubo yokulawula uxinzelelo lwegazi oluzenzekelayo nolukhawulezileyo emzimbeni wakho.
- Ukuxakeka kancinci xa uphakama ngequbuliso uhleli phantsi kusenokuba luphawu lokuba le nkqubo iyasebenza.
- Ezinye izifo, ezifana nesifo seswekile kunye nesifo sikaParkinson, zinokuphazamisa ukusebenza kwale nkqubo.
- Ukuba uhlala uziva unesiyezi, utyhafile, okanye uxinzelelo lwakho lwegazi luphezulu kwaye luphantsi ngendlela engaqhelekanga, musa ukuyityeshela loo nto kwaye ubone ugqirha wakho ngoko nangoko.
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