{"id":3546,"date":"2026-02-03T16:39:33","date_gmt":"2026-02-03T16:39:33","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=3546"},"modified":"2026-02-03T16:39:33","modified_gmt":"2026-02-03T16:39:33","slug":"why-do-babies-have-soft-spots-evolution-and-development","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/biology\/why-do-babies-have-soft-spots-evolution-and-development\/","title":{"rendered":"Pro\u010d maj\u00ed miminka m\u011bkkou \u201efontanelu\u201c? 3 miliony let evoluce v jedn\u00e9 malebouli"},"content":{"rendered":"

Pro\u010d maj\u00ed miminka m\u011bkk\u00e1 m\u00edsta?<\/h2>\n\n

Z\u00e1hadn\u00e9 m\u011bkk\u00e9 m\u00edsto<\/h2>\n\n

M\u011bkk\u00e9 m\u00edsto na hlavi\u010dce miminka je fascinuj\u00edc\u00ed vlastnost, kter\u00e1 po stalet\u00ed p\u0159itahuje a z\u00e1rove\u0148 mate v\u011bdce. Tato pru\u017en\u00e1, m\u011bkk\u00e1 oblast lebky je m\u00edstem, kde kost je\u0161t\u011b nen\u00ed zcela vytvo\u0159ena, a poskytuje n\u00e1hled do jedine\u010dn\u00e9ho v\u00fdvojov\u00e9ho procesu lidsk\u00fdch kojenc\u016f.<\/p>\n\n

Evolu\u010dn\u00ed p\u016fvod<\/h2>\n\n

Ned\u00e1vn\u00e1 studie p\u0159inesla nov\u00e9 poznatky o evolu\u010dn\u00edm p\u016fvodu m\u011bkk\u00fdch m\u00edst. V\u011bdci zjistili, \u017ee hominidn\u00ed miminka \u2013 v\u010detn\u011b na\u0161ich p\u0159edk\u016f \u2013 m\u011bla m\u011bkk\u00e1 m\u00edsta u\u017e p\u0159inejmen\u0161\u00edm t\u0159i miliony let. Tento objev nazna\u010duje, \u017ee m\u011bkk\u00e1 m\u00edsta se vyvinula jako odpov\u011b\u010f na na\u0161e unik\u00e1tn\u00ed mozky a neobvykl\u00fd zp\u016fsob ch\u016fze.<\/p>\n\n

Porodn\u00ed dilema<\/h2>\n\n

Jak se hominid\u016fm zv\u011bt\u0161oval mozek, st\u00e1valo se pro matky st\u00e1le obt\u00ed\u017en\u011bj\u0161\u00ed rodit. M\u011bkk\u00e9 m\u00edsto a metopick\u00fd \u0161ev \u2013 linie, kde se spojuj\u00ed dv\u011b \u010d\u00e1sti \u010deln\u00ed kosti \u2013 sehr\u00e1ly kl\u00ed\u010dovou roli p\u0159i \u0159e\u0161en\u00ed tohoto probl\u00e9mu. B\u011bhem porodu stahy porodn\u00edch cest zp\u016fsobily p\u0159ekryv okraj\u016f lebky, \u010d\u00edm\u017e se hlavi\u010dka stla\u010dila a mohla proj\u00edt \u00fazk\u00fdmi porodn\u00edmi cestami.<\/p>\n\n

Rychl\u00fd r\u016fst mozku<\/h2>\n\n

Dal\u0161\u00edm faktorem, kter\u00fd p\u0159isp\u011bl k v\u00fdvoji m\u011bkk\u00fdch m\u00edst, je rychl\u00fd r\u016fst mozku, kter\u00fd lidsk\u00e1 miminka pro\u017e\u00edvaj\u00ed b\u011bhem prvn\u00edho roku \u017eivota. Tento r\u016fst pokra\u010duje i po narozen\u00ed a d\u00edky m\u011bkk\u00e9mu m\u00edstu a nesrostl\u00e9 \u010deln\u00ed kosti se lebka m\u016f\u017ee roztahovat a p\u0159izp\u016fsobovat se rostouc\u00edmu mozku.<\/p>\n\n

Front\u00e1ln\u00ed k\u016fra<\/h2>\n\n

Front\u00e1ln\u00ed k\u016fra, um\u00edst\u011bn\u00e1 za \u010delem, je zodpov\u011bdn\u00e1 za n\u011bkter\u00e9 z na\u0161ich pokro\u010dil\u00fdch kognitivn\u00edch schopnost\u00ed. U lid\u00ed pro\u0161la front\u00e1ln\u00ed k\u016fra b\u011bhem evoluce v\u00fdznamn\u00fdmi zm\u011bnami velikosti i tvaru. Tyto zm\u011bny mohly ovlivnit opo\u017ed\u011bn\u00fd v\u00fdvoj t\u00e9to \u010d\u00e1sti lebky u mlad\u00fdch lid\u00ed, co\u017e umo\u017enilo pokra\u010duj\u00edc\u00ed r\u016fst mozku a kognitivn\u00ed v\u00fdvoj.<\/p>\n\n

D\u016fkazy z fos\u00edli\u00ed<\/h2>\n\n

D\u00edt\u011b z Taung, slavn\u00fd fos\u00edlie Australopithecus africanus, poskytuje d\u016fkaz o existenci m\u011bkk\u00fdch m\u00edst. V\u011bdci na lebce D\u00edt\u011bte z Taung objevili obrys m\u011bkk\u00e9ho m\u00edsta, co\u017e ukazuje, \u017ee m\u011bkk\u00e1 m\u00edsta byla p\u0159\u00edtomna u\u017e u ran\u00fdch hominid\u016f. Podobn\u00e9 d\u016fkazy byly nalezeny i lebk\u00e1ch druh\u016f Homo habilis a Homo erectus.<\/p>\n\n

Budouc\u00ed v\u00fdzkum<\/h2>\n\n

Zat\u00edmco objev m\u011bkk\u00fdch m\u00edst u ran\u00fdch hominid\u016f p\u0159inesl nov\u00e9 poznatky o jejich evolu\u010dn\u00ed historii, st\u00e1le existuje mnoho nezodpov\u011bzen\u00fdch ot\u00e1zek. Budouc\u00ed v\u00fdzkum se zam\u011b\u0159\u00ed na identifikaci m\u011bkk\u00fdch m\u00edst u je\u0161t\u011b star\u0161\u00edch hominidn\u00edch druh\u016f, aby ur\u010dil, kdy se tato vlastnost poprv\u00e9 objevila. Tento v\u00fdzkum n\u00e1m pom\u016f\u017ee l\u00e9pe pochopit faktory, kter\u00e9 utv\u00e1\u0159ely lidskou evoluci a jedine\u010dn\u00e9 rysy, kter\u00e9 n\u00e1s odli\u0161uj\u00ed od ostatn\u00edch prim\u00e1t\u016f.<\/p>\n\n

M\u011bkk\u00e1 m\u00edsta u modern\u00edch lid\u00ed<\/h2>\n\n

Dnes jsou m\u011bkk\u00e1 m\u00edsta norm\u00e1ln\u00ed a nezbytnou sou\u010d\u00e1st\u00ed v\u00fdvoje lidsk\u00e9ho kojence. Obvykle se uzav\u00edraj\u00ed b\u011bhem prvn\u00edch dvou let \u017eivota, ale v n\u011bkter\u00fdch p\u0159\u00edpadech mohou \u010d\u00e1ste\u010dn\u011b p\u0159etrv\u00e1vat i dosp\u011blosti. A\u010dkoli m\u011bkk\u00e9 m\u00edsto nemus\u00ed nutn\u011b znamenat \u017e\u00e1dn\u00fd zdravotn\u00ed probl\u00e9m, je d\u016fle\u017eit\u00e9 v p\u0159\u00edpad\u011b obav konzultovat situaci se zdravotnick\u00fdm odborn\u00edkem.<\/p>","protected":false},"excerpt":{"rendered":"

Pro\u010d maj\u00ed miminka m\u011bkk\u00e1 m\u00edsta? Z\u00e1hadn\u00e9 m\u011bkk\u00e9 m\u00edsto M\u011bkk\u00e9 m\u00edsto na hlavi\u010dce miminka je fascinuj\u00edc\u00ed vlastnost, kter\u00e1 po stalet\u00ed p\u0159itahuje a z\u00e1rove\u0148 mate v\u011bdce. Tato pru\u017en\u00e1, m\u011bkk\u00e1 oblast lebky je…<\/p>\n","protected":false},"author":2,"featured_media":25285,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[288],"tags":[132,6731,6732,487,137,6730],"class_list":["post-3546","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-biology","tag-anthropology","tag-brain-development","tag-cognitive-development","tag-human-evolution","tag-paleontology","tag-soft-spots"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/3546","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=3546"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/3546\/revisions"}],"predecessor-version":[{"id":25286,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/3546\/revisions\/25286"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media\/25285"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=3546"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=3546"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=3546"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}