Khawuthelekelele uhamba esitalatweni uze ngequbuliso uthuli lungene emehlweni akho. Ngaphambi kokuba ube nexesha lokucinga, amehlo akho ayavaleka, akunjalo? Okanye, xa ukukhanya okukhanyayo kubetha emehlweni akho ngequbuliso, amehlo akho ayavaleka ngokuzenzekelayo. Ngaba wakha wazibuza ukuba ezi zinto zenzeka njani? Ezi zizinto esizibiza ngokuba yi- 'eye reflexes' . Ezi zifana nabalindi emehlweni ethu abasikhuselayo ngaphandle kokuba sizazi. Masithethe ngale nto ngokulula nangendlela ehloniphekileyo namhlanje.
Zithini kanye kanye ezi ndlela zokuhlaziya amehlo?
Ngamafutshane, ii-eye reflexes ziimpendulo ezizenzekelayo ezikhusela amehlo ethu kwaye zisinceda sibone ngokucacileyo. Aziyonto ucinga ngayo, zenzeka ngokuzenzekelayo. Izinto ezinje ngokuqhwanyaza, ukukrazula, kunye nomsesane omnyama weliso otshintsha umbala kuxhomekeke ekukhanyeni zilawulwa zezi reflexes.
Konke oku kwenzeka ngenethiwekhi yemiqondiso yemithambo-luvo ehamba phakathi kwengqondo yethu namehlo ethu . Kufana nenkqubo yocingo lwefowuni eofisini. Xa iliso lisiva into eyingozi okanye eyahlukileyo, umyalezo uhamba ngemithambo-luvo uye engqondweni. Ingqondo iphendula ngokuthumela umyalezo kwakhona elisweni, isithi, "Kulungile, vala amehlo akho ngoku" okanye "Bonisa iinyembezi." Oku kwenzeka ngokukhawuleza kangangokuba asinalo nexesha lokucinga ngako.
Kukho iintlobo ezintathu eziphambili ze-eye reflexes esithetha ngazo kwaye esizifumana rhoqo.
1. I-Corneal Reflex: Yiyo le nto ibangela ukuba amehlo avaleke kwaye kuphume iinyembezi.
2. I-Pupillary Reflex: Oku kukwanda komfundi weliso xa esabela ekukhanyeni.
3. I-Vestibulo-ocular Reflex: Oku kugcina umbono wethu uzinzile nokuba sishukumisa iintloko zethu.
Ngoku makhe sijonge nganye kwezi ngokwahlukeneyo.
Kutheni amehlo evala xa into encinci iwachukumisa? - I-Corneal Reflex
Le yeyona nto ikhusela iliso lethu. Inxalenye ecacileyo engaphambili kweliso lethu ibizwa ngokuba yi-cornea. Le nxalenye inovelwano kakhulu. Nokuba into encinci iyayibetha, iyasabela ukuyikhusela, ebizwa ngokuba yi-Corneal Reflex. Ineenxalenye ezimbini eziphambili.
| Igama lesenzo se-reflex | Kwenzeka ntoni kunye nemizekelo |
|---|---|
| I-Corneal Blink Reflex | Amehlo avala ngokuzenzekelayo xa into ethile, efana nesuntswana lothuli okanye isinambuzane esincinci, idibana neliso okanye iwela kulo. Oku kwenzeka ukukhusela amehlo kwizinto ezingena elisweni. Kwakhona, xa ukukhanya okukhanyayo ngequbuliso, okufana nokukhanya kwifoto, kubetha elisweni, amehlo avala ngokuzenzekelayo ngenxa yolu hlobo lokukhanya. |
| I-Knock/Lacrimatory Reflex | Xa into efana nothuli okanye uthuli ingena emehlweni ethu, iinyembezi zethu ziphuma ngoko nangoko ukuze zihlanjwe. Kodwa oku akwenzeki nje xa kukho into efika emehlweni ethu. Iinyembezi zinokuphuma xa sisika itswele ekhitshini, xa sichatshazelwa ngumsi onamandla, xa sisemoyeni onamandla, okanye xa sichatshazelwa ngumkhuhlane. Olu hlobo lokucamngca luyasebenza xa siziva iimvakalelo ezinamandla, njengaxa sonwabile kakhulu okanye sidakumbile. |
Ngamafutshane, oku (i-corneal reflex) yindlela yokuqala yokukhusela ethathwa liliso ukuze likhuseleke kuyo nayiphi na ingozi yangaphandle enokuvela.
Kutheni amehlo am eba mancinci xa ndiphuma phandle aze abe makhulu ebumnyameni? - I-Pupillary Reflex
Ngaba wakha wema phambi kwesibuko waza wakhanyisa itotshi elisweni lakho? Xa usenza loo nto, isangqa esimnyama esiphakathi kweliso lakho, umfundi, siyancipha ngequbuliso. Xa ususa itotshi, iyanda kancinci kancinci. Oku sikubiza ngokuba yiPupillary Reflex . Injongo yayo ephambili kukulawula ubungakanani bokukhanya okungena elisweni. Kufana nomngxuma okwikhamera. Kukho iintlobo ezintathu ze-pupil reflexes.
Ukuphendula ekukhanyeni
Xa uphuma ngaphandle ngemini enelanga, kukho ukukhanya okuninzi okungena elihlweni. Oku kungonakalisa iindawo ezibuthathaka ngaphakathi kwelihlo. Ukuze kuthintelwe, umfundi uyaxinaniswa. Oku kubizwa ngokuba yiPupillary Light Reflex.
Ukuphendula ebumnyameni
Khawucinge nje ukuba uya kwindawo yokubukela iimuvi. Xa ungena, awuboni nto, akunjalo? Kodwa emva kwexesha elithile, indawo okuyo iqala ukubonakala kancinci kancinci. Okwenzekayo apha kukuba, kuba sifuna ukubona ebumnyameni, umfundi omnyama uyavuleka ukuze kungene ukukhanya okuninzi kangangoko kunokwenzeka. Oku kubizwa ngokuba yiPupillary Dark Reflex.
Ukuphendula kwintlungu
Oku kwahlukile kancinci. Ukuba ufumana nayiphi na intlungu ebusweni okanye entanyeni yakho, i-cilia yakho inokukhula ngequbuliso ngenxa yoko. Oku kubizwa ngokuba yi-Ciliospinal Reflex.
Ungawagcina njani amehlo akho ejonge kwindawo enye nokuba ujika intloko yakho? - I-Vestibulo-ocular reflex
Oku kuyamangalisa ngokwenene. Iintloko zethu zihlala zihamba kancinci ngaphandle kokuba siqaphele. Sizishukumisa iintloko zethu xa sihamba, sibaleka, okanye sikhwela emotweni. Ukuba amehlo ethu ebehamba ngaxeshanye ngalo lonke ixesha sishukumisa iintloko zethu, yonke into esiyibonayo ibiya kuba luzizi kwaye ibonakale ngathi iyajikeleza.
Kodwa oko akwenzeki, akunjalo? Ukuba uhamba esitratweni ujonge uphawu evenkileni, usenokulubona ngokucacileyo nangokuthe chu uphawu, nokuba unikina intloko yakho.
Isizathu soku yiVestibulo-ocular Reflex . Yile nto iyenzayo, xa intloko yakho ijikwa kwelinye icala, amehlo akho aya kwelinye icala ukuze ayilungise, egcina umbono wakho ungaguquki kwinto oyijongileyo. Oku kufana netekhnoloji yokuzinzisa umfanekiso kwikhamera yevidiyo. Ngaphandle kwale reflex, besingenakukwazi ukubona izinto ngokucacileyo nokuba sihamba ngesiqhelo.
Ngaba kukho ezinye iimpendulo esingazaziyo?
Ewe, kukho ezinye iindlela ezibalulekileyo zokuzilolonga esingaziva mihla le, kodwa zenzeka emizimbeni yethu.
| Isenzo sokuzivuselela | Inkcazo |
|---|---|
| I-Oculocardiac Reflex | Oku kukhethekile kancinci. Eli ligama elinikwe into yokuba xa kukho uxinzelelo emehlweni ethu, izinga lentliziyo yethu liyehla xa sisabela. Le meko idla ngokubonakala xa senza utyando lwamehlo. Inokwenzeka naxa sibetheka ebusweni okanye xa sinikwa inaliti ye-anesthetic. |
| I-Bell's Reflex (i-Palpebral Oculogyric Reflex / i-Bell's Reflex) | Xa ufaka amaconsi emehlweni okanye iilensi zokunxibelelana emehlweni, amehlo akho ayajika ngokuzenzekelayo, akunjalo? Yiloo nto ibizwa ngayo le reflex. Ibizwa ngegama lemeko ebizwa ngokuba yiBell's Palsy, ephazamisa imithambo-luvo yobuso okwethutyana. |
Ngaba sifanele sikhathazeke ngale ndlela yokusabela?
Ngokwesiqhelo, ezi reflexes ziyazenzekela, ngoko ke asicingi ngazo kakhulu kubomi bethu bemihla ngemihla. Logama nje zisebenza kakuhle kwaye zisebenza kakuhle, asiziva ngxaki.
Nangona kunjalo, ukuba kukho ubuthathaka okanye ukungaqheleki kwezi reflexes, oko kungaba luphawu lwesifo semithambo-luvo okanye enye ingxaki yempilo. Yiyo loo nto oogqirha bejonga ezi reflexes ngexesha lovavanyo lwemithambo-luvo.
Ukuba ucinga,
- Kubonakala ngathi kukhulu kakhulu ukuba amehlo am abe luhlaza okwesibhakabhaka xa ndiphuma.
- Ndiva utshintsho oluthile embonweni wam, imvakalelo efipheleyo.
- Akubonakali ngathi yinto eqhelekileyo, ngathi "kukho into engalunganga" emehlweni.
Ukuba ubona naluphi na utshintsho olufana nolu, musa ukulutyeshela. Bona ugqirha wakho ngoko nangoko ukuze ufumane icebiso. Kubalulekile nokuba uhlolwe amehlo rhoqo. Ngale ndlela, ukuba kukho ingxaki, inokubonwa kwangethuba.
Umyalezo Wokuya Ekhaya
- Ukusabela kwamehlo yinkqubo yendalo ekhusela amehlo ethu kwaye inika umbono ocacileyo.
- Imisebenzi yazo ephambili kukuvala amehlo, ukuvelisa iinyembezi, ukutshintsha umbala we-iris ngokwendlela ekhanyayo, kunye nokugcina umbono uzinzile xa intloko ishukuma.
- Konke oku kulawulwa ziimpawu zemithambo-luvo phakathi kwengqondo namehlo.
- Ukuba ubona naluphi na utshintsho olungaqhelekanga emehlweni okanye ekuboneni kwakho, kubalulekile ukufuna ingcebiso kagqirha ngokukhawuleza ngaphandle kokuyityeshela.
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