{"id":3592,"date":"2017-12-04T20:03:19","date_gmt":"2017-12-04T22:03:19","guid":{"rendered":"http:\/\/en-mol.icb.usp.br\/?page_id=3592"},"modified":"2026-09-22T11:36:15","modified_gmt":"2026-09-22T14:36:15","slug":"8-2-muscle-tissue","status":"publish","type":"page","link":"https:\/\/mol-en.icb.usp.br\/index.php\/8-2-muscle-tissue\/","title":{"rendered":"8-2  Muscle tissue"},"content":{"rendered":"<div class=\"su-row\">\n  <div class=\"su-column su-column-size-1-1\"><div class=\"su-column-inner su-u-clearfix su-u-trim\"> <strong>MAIN HISTOLOGICAL FEATURES OF THE MUSCLE FIBERS<\/strong><\/div><\/div>\n<\/div>\n<div class=\"su-row\">\n  <div class=\"su-column su-column-size-1-2\"><div class=\"su-column-inner su-u-clearfix su-u-trim\">\n<strong>Skeletal muscle fibers<\/strong><br \/>\nSkeletal muscle fibers are long, cylindrical cells that may extend nearly the entire length of the muscle to which they belong. They are multinucleated, and their numerous nuclei are located at the periphery of the fiber, immediately beneath the plasma membrane. Skeletal muscle fibers are striated because, when viewed under a microscope, their cytoplasm shows a regular pattern of characteristic transverse bands (striations).<\/p>\n<p><img decoding=\"async\" src=\" https:\/\/mol-en.icb.usp.br\/wp-content\/uploads\/8-2-A.jpg \" \/><\/a><\/p>\n<p><strong>Smooth muscle fibers <\/strong><br \/>\nSmooth muscle cells are called \u201csmooth\u201d because their cytoplasm does not show the transverse striations characteristic of skeletal and cardiac muscle when viewed in longitudinal sections under a microscope. They are spindle-shaped, with tapered ends, and their nucleus is centrally located within the cell.<\/p>\n<p>The position of the nuclei in longitudinal and transverse sections of muscle cells is an important histological feature that helps distinguish their different types.<br \/>\n<img decoding=\"async\" src=\" https:\/\/mol-en.icb.usp.br\/wp-content\/uploads\/8-2-C.jpg \" \/><\/a><\/p>\n<p><a href=\"https:\/\/mol-en.icb.usp.br\/index.php\/8-3-muscle-tissue\/\">NEXT PAGE<\/a><\/p>\n<p><a href=\"https:\/\/mol-en.icb.usp.br\/index.php\/8-1-muscle-tissue\/\">PREVIOUS PAGE<\/a><\/p>\n<p><a href=\"https:\/\/mol-en.icb.usp.br\/index.php\/8-0-muscle-tissue\/\">MENU OF THIS CHAPTER<\/a> <\/p>\n<\/div><\/div>\n  <div class=\"su-column su-column-size-1-2\"><div class=\"su-column-inner su-u-clearfix su-u-trim\"> <\/p>\n<\/div><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3592","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/mol-en.icb.usp.br\/index.php\/wp-json\/wp\/v2\/pages\/3592","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mol-en.icb.usp.br\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/mol-en.icb.usp.br\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/mol-en.icb.usp.br\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/mol-en.icb.usp.br\/index.php\/wp-json\/wp\/v2\/comments?post=3592"}],"version-history":[{"count":30,"href":"https:\/\/mol-en.icb.usp.br\/index.php\/wp-json\/wp\/v2\/pages\/3592\/revisions"}],"predecessor-version":[{"id":26150,"href":"https:\/\/mol-en.icb.usp.br\/index.php\/wp-json\/wp\/v2\/pages\/3592\/revisions\/26150"}],"wp:attachment":[{"href":"https:\/\/mol-en.icb.usp.br\/index.php\/wp-json\/wp\/v2\/media?parent=3592"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}