This a single sarcomere., Sarcomeres are linked together to form a myofibril., Many myofibrils grouped together create a muscle fibre., Grouping together many muscle fibres creates a muscle fibre bundle., This bundle of muscle fibres is wrapped in connective tissue to keep them together., The muscle is attached to bones at a joint by tendons..

排行榜

视觉风格

选项

切换模板

恢复自动保存: