| 摘 要： | The present study describes the characteristics of visceral injuries of rabbits exposed to a wide-band noise field of 168 dB sound pressure level.The experimental results demonstrated that thesites of the injuries are dependent to a certain extent on the postures of the animals.For animalsin free body posture or in prone posture,the most vulnerable organs are the lungs,which are opento the external environment,and the next are the hollow organs(with empty cavities)such as thestomach and intestines.For animals exposed in supine posture,the heart is usually very seriouslyinjured.Besides,the liver,which is situated near the abdominal wall,will also show some significantinjuries.The characteristics of these visceral injuries reveal that the primary cause of those patho-logical findings is the mechanical effect of the sound waves.
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