ersity Transverse Longitudinal
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Anhui Medical University collagen fibers collagen fibers Striated skeletal muscle in longitudinal section(special staining)
Anhui Medical University Anhui Medical University collagen fibers collagen fibers Striated skeletal muscle in longitudinal section (special staining)
Anhui Medical University Skeletal muscle -Myofibrils 。The structural and functional subunit of the muscle fiber. They contribute to the Muscle fibre Myofibrils formation of transverse- striation. 。They have A bands,H bands,M lines,I bands and Z lines
Anhui Medical University Anhui Medical University Skeletal muscle -Myofibrils • The structural and functional subunit of the muscle fiber. • They contribute to the formation of transversestriation. • They have A bands, H bands, M lines, I bands and Z lines
Anhui Medical University Skeletal muscle -sarcomere The sarcomere is the segment of the myofibril between two adjacent Z lines. It is the basic contractile unit of striated muscle U ·》 ·龄渗婆鞭H
Anhui Medical University Anhui Medical University Skeletal muscle - sarcomere • The sarcomere is the segment of the myofibril between two adjacent Z lines. • It is the basic contractile unit of striated muscle
肌带 暗（A)带 明()带 IBand H带 Z线 M线 ⅓I+■1A+%I
Anhui Medical University Anhui Medical University 肌 节 暗（A）带 明（I）带 H 带 Z 线 M 线 ½ I + 1 A + ½ I