one of many contractile filaments that make up a striated muscle fiber
造句
用作名詞(n.)
All cells have secretory and absorptive functions besides 4ibblasts and granular cells in connective tissue, there are myofibril, collagenous fibril and unmyelinated fibers. 結(jié)締組織中除有成纖維細(xì)胞和顆粒細(xì)胞外還充滿(mǎn)膠原原纖維和肌原纖維，無(wú)髓神經(jīng)原纖維也較多。