{"id":965,"date":"2010-11-30T10:06:00","date_gmt":"2010-11-30T10:06:00","guid":{"rendered":"http:\/\/e-kako.geek.hr\/2010\/11\/30\/kako-nastaje-refleks\/"},"modified":"2013-10-01T19:42:56","modified_gmt":"2013-10-01T19:42:56","slug":"kako-nastaje-refleks","status":"publish","type":"post","link":"https:\/\/geek.hr\/e-kako\/biologija\/kako-nastaje-refleks\/","title":{"rendered":"Kako nastaje refleks?"},"content":{"rendered":"<p>Kad vas pogleda, lije\u010dnik ponekad tra\u017ei od vas da prekri\u017eite noge, a potom vas malim gumenim bati\u0107em udari po koljenu.<\/p>\n<p>Lije\u010dnik time \u017eeli provjeriti va\u0161 refleks. U ovom slu\u010daju to je jedan poseban, takozvani patelarni refleks, zato \u0161to \u010deki\u0107em udari u jednu vezu koljena koja se zove pateralna veza. \u0160to se doga\u0111a kada se \u010deki\u0107em udari po toj vezi? Podra\u017eaj polazi od \u010dulne stanice u vezi koljena i ide prema le\u0111noj mo\u017edini. Tu se prenosi na motornu stanicu, a ona \u0161alje akcionu struju mi\u0161i\u0107ima noge. Noga se trza, kao da se sprema udariti neprijatelja u samoobrani.<\/p>\n<p>Ova radnja je refleksna. Drugim rije\u010dima, ona je automatska. Mi nemamo nikakvu kontrolu nad njom, zato \u0161to ona nije zapo\u010deta u na\u0161em mozgu. Na primjer, kad legnete u krevet i zatvarate o\u010di, vi obavljate voljnu radnju. Ali, ako vam trunka pra\u0161ine uleti u oko, vi \u0107e te ga odmah zatvoriti, htjeli to ili ne. Ovaj automatski pokret je refleks. Prema tomu, refleks mo\u017eemo opisati kao<strong> au\u00adtomatsku reakciju organizma<\/strong>, bez utjecaja volje, na neki vanjski nadra\u017eaja.<\/p>\n<p>Nastanak refleksa se odvija kad senzitivne stanice prime podra\u017eaj s ko\u017ee, on ide prema le\u0111noj mo\u017edini i odatle se prenosi na motorne stanice. Motorne stanice upu\u0107uju struje odre\u0111enim mi\u0161i\u00ad\u0107ima i izazivaju njihov rad. Ti \u017eiv\u010dani impulsi ne prolaze kroz mozak. Vise od 90 posto svih radnji \u0161to ih obavlja ljudski \u017eiv\u010dani sustav su refleksivne radnje!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Kad vas pogleda, lije\u010dnik ponekad tra\u017ei od vas da prekri\u017eite noge, a potom vas malim gumenim bati\u0107em udari po koljenu.<\/p>\n","protected":false},"author":10022,"featured_media":964,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[56],"tags":[],"class_list":["post-965","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-biologija"],"_links":{"self":[{"href":"https:\/\/geek.hr\/e-kako\/wp-json\/wp\/v2\/posts\/965","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/geek.hr\/e-kako\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/geek.hr\/e-kako\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/geek.hr\/e-kako\/wp-json\/wp\/v2\/users\/10022"}],"replies":[{"embeddable":true,"href":"https:\/\/geek.hr\/e-kako\/wp-json\/wp\/v2\/comments?post=965"}],"version-history":[{"count":0,"href":"https:\/\/geek.hr\/e-kako\/wp-json\/wp\/v2\/posts\/965\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/geek.hr\/e-kako\/wp-json\/wp\/v2\/media\/964"}],"wp:attachment":[{"href":"https:\/\/geek.hr\/e-kako\/wp-json\/wp\/v2\/media?parent=965"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/geek.hr\/e-kako\/wp-json\/wp\/v2\/categories?post=965"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/geek.hr\/e-kako\/wp-json\/wp\/v2\/tags?post=965"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}