用嗓过度、疾病可引起声音嘶哑,服药不当也可引起嘶哑,您知道吗?人的声音,是声带振动发出的。声带位于咽喉部,长15～20毫米,淡黄色,受大脑中枢统一指挥,喉肌的舒张收缩和气流的冲动互相协调,引起声带振动而发出美妙动听的声音。但若患了上呼吸道感染、急性咽喉炎、声带外伤、手 With excessive throat, the disease can cause hoarseness, improper medication can also cause hoarseness, you know? The voice of the human voice is issued by the vibration of the vocal cords. Vocal cord is located in the throat, 15 to 20 mm long, light yellow, under the unified command of the brain center, the relaxation and contraction of the laryngeal muscles and airflow impulse coordination, causing the vocal cords vibration and make a beautiful sound. But if suffering from upper respiratory tract infection, acute pharyngitis, vocal cord trauma, hand