题干

识图作答题
据图回答有关问题:

(1)读图,填出各部分名称。
____ ,  ③____ ,  ⑥____
(2)骨骼肌有受到刺激而____  的特性,但只能牵拉骨而不能推开骨。因此与骨相连的肌肉总是由两组肌肉相互____ 活动的。
(3)关节对运动的意义是:在运动中起到____ 的作用。
(4)屈肘时(图甲)肱二头肌____ ,肱三头肌____ ;伸肘时(图丙)则相反。
(5)动物的运动,除运动系统外,还需要____  的控制和调节,还需要能量,因此还需要消化系统和____ 、循环系统等系统共同配合才能完成。

上一题 下一题 0.0难度 选择题 更新时间:2014-01-21 08:03:02

答案(点此获取答案解析)

肌腹,肱二头肌,关节头,收缩,配合,支点,收缩,舒张,神经系统,呼吸系统

同类题2

阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。

D

    In today's consumer world, we've never had so much, yet it seems we've never been so unsatisfied. The cost of housing has been rising for decades, and the cost to the planet has been huge, too. But there is a way to live a simpler, greener, and more affordable life: buy a Tiny Dwelling home!

    Tiny Dwelling homes are very small, yet comfortable houses at affordable prices. Each Tiny Dwelling home has a contemporary design and included a living room, kitchen, bathroom, upstairs sleeping area, and convenient storage space. Tiny Dwelling homes are cheap to run and ecologically-friendly, too. All you need is a small heater to keep your house warm in cold weather, and solar panels (太阳能电池板) in order to provide light and electricity.

    Tiny Dwelling is part of the small-living movement that began in the late 1990s. Back then, a growing number of people began to live in very small homes. They wanted to reduce their possessions, living space, and energy costs, so as to lead more ecologically-friendly lives. But the sm all-living movement really took off after the economic crisis of 2008, when many people realized that they couldn't afford to keep large homes.

    Lizzy Morriaon, a small-living enthusiast, started Tiny Dwelling homes in 2008 to meet the needs of these people. Since then, Lizzy has been designing and building homes nonstop, and Ti ny Dwelling homes have become so popular that thousands of people have bought one. And Lizzy hasn't only designing and building houses. She has also been teaching people how to build them. Simply buy the plans and materials so that you can build your own home, and save even more money!