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31. | The molecule structures of cell membrane and muscle cell; The principle of muscle contraction. |
| 【熟悉】细胞膜和肌细胞的分子结构;肌肉收缩的原理。 |
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32. | To conserve blood that will be needed by muscles, skin vessels constrict while vessels of the muscles dilate. |
| 为了保存肌肉所需要的血液,皮肤血管收缩,而肌肉血管舒张。 |
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33. | Most muscles extend from one bone to another. When the muscle between the bones shortens, one bone has to move. |
| 大多数肌肉接两块骨头,但当肌肉收缩时只有一块骨头运动。 |
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34. | affected by involuntary jerky muscular contractions; resembling a spasm. |
| 由不自觉的肌肉收缩引起的;似痉挛的。 |
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35. | Cramps are muscular contractions which tie the tendons into knots. |
| 痉挛是肌肉收缩,筋缠到关节上了。 |
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36. | To bend the arm at the elbow, the muscle at the front of the upper arm has to shorten and bunch up. |
| 要从肘部弯曲手臂,就要收缩上臂正面的肌肉。 |
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37. | When the muscle between the bones shortens, one bone has to move. |
| 但当肌肉收缩时只有一块骨头运动。 |
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38. | "Convulsion:an intense, paroxysmal, involuntary muscular contraction." |
| 抽搐:一种强烈的、阵发性的、不自觉的肌肉收缩. |
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39. | We have a 57-year-old gentleman with asystole. |
| 我们这有一个57岁的肌肉收缩的病人 |
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40. | The heart is a muscular organ that contracts rhythmically. |
| 心脏是个肌肉性器官,具有节律性收缩能力。 |
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