Miocit — разлика између измена

'''Miocit''' (takođe poznat kao '''mišićna ćelija''')<ref>{{cite book|last1=al.]|first1=consultants Daniel Albert ... [et|title=Dorland's illustrated medical dictionary.|date=2012|publisher=Saunders/Elsevier|location=Philadelphia, PA|isbn=978-1-4160-6257-8|page=321|edition=32nd}}</ref> je tip [[Cell (biology)|ćelija]] prisutan u [[muscle tissue|mišićnom tkivu]]. Miociti su duge, cevaste ćelije koje se razvijaju iz '''mioblasta''' da formiraju [[Мишићно ткиво|mišiće]] u procesu poznatom kao [[myogenesis|miogeneza]].<ref>{{MeSH name|Myocytes}}</ref> Postoje različiti specijalizovani oblici miocita sa izrazitim svojstvima: ćelije [[cardiac muscle|srca]], [[skeletal muscle|skeleta]] i [[smooth muscle|glatkih mišića]]. [[striated muscle tissue|Prugaste ćelije]] srčanih i skeletnih mišića nazivaju se ''mišićnim vlaknima''.<ref>{{cite book|last1=al.]|first1=consultants Daniel Albert ... [et|title=Dorland's illustrated medical dictionary. |date=2012 |publisher= Saunders/Elsevier|location=Philadelphia, PA|isbn=978-1-4160-6257-8|pages=321 and 697|edition=32nd}}</ref> [[Cardiac muscle cell|Kardiomiociti]] su mišićna vlakna koja formiraju komore srca i imaju jedno centralno [[Cell nucleus|jedro]].<ref>{{cite web|title=Muscle tissues|url=http://www.botany.uwc.ac.za/sci_ed/grade10/mammal/muscle.htm|deadurlurl-status=nolive|archiveurl=https://web.archive.org/web/20151013025029/http://www.botany.uwc.ac.za/sci_ed/grade10/mammal/muscle.htm|archivedate=2015-10-13|df=}}</ref> Skeletna mišićna vlakna pomažu potpori i pomeranju tela i imaju tendenciju da imaju periferna jezgra.<ref name=scott>{{cite journal|last1=Scott|first1=W|last2=Stevens|first2=J|last3=Binder-Macleod|first3=SA|title=Human skeletal muscle fiber type classifications.|journal=Physical Therapy|date=2001|volume=81|issue=11|pages=1810–1816|pmid=11694174|url=http://ptjournal.apta.org/content/81/11/1810.full|url-status=dead|archiveurl=https://web.archive.org/web/20150213021358/http://ptjournal.apta.org/content/81/11/1810.full|archivedate=2015-02-13|df=}}</ref><ref>{{cite web |url=https://www.researchgate.net/post/Does_anyone_know_why_skeletal_muscle_fibers_have_peripheral_nuclei_but_the_cardiomyocytes_not_What_are_the_functional_advantages |title=Does anyone know why skeletal muscle fibers have peripheral nuclei, but the cardiomyocytes not? What are the functional advantages? |publisher=ResearchGate |deadurlurl-status=nolive |archiveurl=https://web.archive.org/web/20170919005558/https://www.researchgate.net/post/Does_anyone_know_why_skeletal_muscle_fibers_have_peripheral_nuclei_but_the_cardiomyocytes_not_What_are_the_functional_advantages |archivedate=2017-09-19 |df= }}</ref> Ćelije glatkih mišića kontrolišu nesvesne pokrete, poput kontrakcija [[peristaltika]] u [[jednjak]]u i [[Želudac|želucu]].

Ćelijska membrana miocita ima nekoliko specijalizovanih područja, koja mogu uključivati [[Intercalated disc|interkalirani disk]] i [[T-tubula|poprečni cevasti sistem]]. Ćelijska membrana je pokrivena slojem lamine širine oko 50 -{nm}-. Laminarni premaz može se odvojiti u dva sloja; [[lamina densa]] i [[lamina lucida]]. Između ova dva sloja može biti prisutno nekoliko različitih vrsta jona, uključujući [[kalcijum]]ove.<ref name=ferrari>{{cite web|last1=Ferrari|first1=Roberto|title=Healthy versus sick myocytes: metabolism, structure and function|url=http://eurheartjsupp.oxfordjournals.org/content/ehjsupp/4/suppl_G/G1.full.pdf|website=oxfordjournals.org/en|publisher=Oxford University Press|accessdate=12 February 2015|deadurlurl-status=nolive|archiveurl=https://web.archive.org/web/20150219100248/http://eurheartjsupp.oxfordjournals.org/content/ehjsupp/4/suppl_G/G1.full.pdf|archivedate=19 February 2015|df=}}</ref>