澳洲结构学论文代写:声波

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理解ANSD,最好检查耳朵听到的。听力开始当声波穿过空气达到外耳,或耳廓,耳朵的部分是可见的。声波通过耳道进入中耳,其中包括鼓膜(一层薄薄的组织)和三个小骨头叫鼓膜。导致鼓膜震动的声音。这些振动鼓膜放大,内耳。

内耳由snail-shaped室称为耳蜗,是充满液体和内衬四行微小的毛细胞。振动穿过这种液体时,外毛细胞合同来回和放大声音。当振动足够大,内毛细胞将其转化为电气神经冲动在听觉神经,连接内耳到大脑。当神经冲动到达大脑,他们解释为声音。

除了辅助监听设备,孩子ANSD常常可以受益于学习视觉沟通技巧。美国手语(ASL),暗示演讲,并签署具体英语三种类型的视觉通信技术。你会与医疗团队合作,以确定哪些是最适合你的孩子。

澳洲结构学论文代写:声波

To understand ANSD, it's helpful to review how the ear hears. Hearing begins when sound waves that travel through the air reach the outer ear, or pinna, the part of the ear that's visible. The sound waves go through the ear canal into the middle ear, which includes the eardrum (a thin layer of tissue) and three tiny bones called ossicles. The sound causes the eardrum to vibrate. The ossicles amplify these vibrations and carry them to the inner ear.

The inner ear is made up of a snail-shaped chamber called the cochlea, which is filled with fluid and lined with four rows of tiny hair cells. When the vibrations move through this fluid, the outer hair cells contract back and forth and amplify the sound. When the vibrations are big enough, the inner hair cells translate them into electrical nerve impulses in the auditory nerve, which connects the inner ear to the brain. When the nerve impulses reach the brain, they are interpreted as sound.

In addition to assistive listening devices, kids with ANSD often can benefit from learning visual communication skills. American Sign Language (ASL), Cued Speech, and Signed Exact English are three types of visual communication techniques. You'll work with the medical team to determine which is the most appropriate for your child.

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