Ndechipi tsanangudzo yekuregererwa? Izvi zvinowanzoitika apo chimwe chinhu chinonzi myelin, chinoumbwa nemafuta emapine uye mapuroteni, anowedzera kumativi ose emasero, kana neurons. Myelin anoita basa rinokosha muhutano uye hutano hwemasero emutsipa, uropi, uye chirwere chinotyisa. Kuzvidzivirira mumakorani ekutanga europi chikamu chinokosha chekukura kwevechiri kuyaruka.
Basa reMielin Nderei?
Nerve masero (neurons) ane shaft refu kana kuti yakareba mafivha anozivikanwa seaixons. Myelin inoumba zvakapoteredza maxons mune zvinowanzozonzi myelin sheath. Funga nezvemashonga emhando dzemhando dzinotumira magetsi kumativi akasiyana emuviri. Nezvo izvi mupfungwa, hazvishamisi kuti myelin yakafananidzwa nekusungirirwa pamagetsi emagetsi. Zvisinei, haasi ose axon ane myelin kupfeka.
Myelin inosanganisira glial support cells (dzimwe nguva inonzi neuroglia kana nervous system cells) inodzivirira mhepo, iyo inosangana kune mamwe masero emuviri akadai sevamwe neurons, masero masero, uye nhengo panzvimbo dzinozivikanwa se synapses. Myelin inobvumira masero emagetsi kuti adhanise ruzivo nekukurumidza uye anobvumira humwe hutano hwakaoma hutano. Chikonzero chinonzi brain brain chinotarisa chichena chichitaurirwa nekuda kwehuwandu hwakawanda hwemaelinated nerve cells.
Iyo nzira yekuzvidzivirira inonyanya kukosha kune utano hwakanaka hwehutano hwemagetsi huchishanda.
Kuzvinyengera kunowanikwawo munharaunda yehutano hwemhepo. Myelin inogona kugoverwa muhutu hunonzi nodes kana myelin sheath.
Kushandiswa Kwakaitwa Amaelination Kwakaita Sei Tweens
Kufungidzirwa kunotanga mu utero apo fetus inenge masvondo gumi nemana uye inoenderera mberi kuva munhu mukuru. Pakati pemakore emakore, kukanganisa kunonyanya kuitika muhutano hwepamberi hweuropi, chikamu cheropi chinotanga seri kwehuma.
Kunyatsofungidzirwa kwepamberi lobe rubatsiro runoita kuti 'kufungisisa kwekunzwisisa.
Kunyanya, inovabatsira kuti vave ne " hutungamiri huri nani," hunosanganisira kuronga, kufunga , uye mazano ekugadzirisa zvisarudzo. Inobatsirawo kuti zviviri zvidzivirire mafungiro avo zvakajeka uye kuratidzira kuzvikudza kwakanyanya . Izvozvo zvakati, vazhinji vane makore gumi nemaviri uye vechidiki vacharamba vachiine matambudziko ekudzora, sezvinonzi lobe yakatarisana haisviki pakukura kusvika anenge makore makumi maviri nemashanu.
Apo Myelin Anotambura Kukuvara
Apo mafuta aya aya akaparara zvinogona kutungamirira kune zvinogona kukanganisa zvinoparadza zvakadai sa multiple sclerosis (MS). Apo MS inowanikwa, inofungidzirwa kuti maitiro ezvirwere zvezvirwere zvezvirwere zvezvirwere uye anotanga kurwisa kwe myelin sheath, zvichiguma nemaronda. Matambudziko neyelelin akabatanidzwawo kune fibromyalgia, adrenoleukodystrophy (ALD), chirwere cheKrabbe, chirwere cheCharcot-Marie-Tooth (CMT), Guillain-Barré Syndrome, chirwere chiduku cheuropathy uye chirwere chisingaperi chisingarambi chichirwisa polyneuropathy.
Zvose izvi zvinorapa zvirwere zvinosanganisira mitsipa, uye vanhu vane avo vanowanzoshungurudzika, kushaya simba kwemutsipa, kushaya simba, uye kuchinjwa kwechinangwa semugumisiro. Zvimwe zvezviitiko izvi zvinogona kunge zvinouraya. Guillain-Barré, somuenzaniso, anogona kudzivisa vanhu vanotambura kubva pakufema pachavo.
Kana iwe kana munhu waunoda ari kuratidza chero zviratidzo zvezvinetso zviri pamusoro apa, usanonoka kuwana rubatsiro rwezvechiremba. Kunyange zvazvo dzimwe nguva nharo inorasika inowira zvishoma nezvishoma kwenguva yakareba, dzimwe nguva migumisiro yayo inogona kunzwika nokukurumidza. Munyaya ipi zvayo, zvakakosha kutsvaga kutarisirwa kwehutano nokukurumidza sezvinobvira chirwere ichi chichipfuurira. Kuwana rubatsiro rwezvechirwere kunogona kubatsirawo vanhu vane zvirwere zvakadaro kutarisira zviratidzo zvavo uye kuwana rubatsiro rwavanoda.
> Sources:
> Berger, Kathleen. Munhu Anokurudzira Achishandisa Upenyu. 2014. 9th Edition. New York: Worth.