一、小儿喉腔的特点随着发声器官的发育,小儿的嗓音可出现某些生理性变化及病理性异常。由于小儿的喉腔解剖和生理等方面与成人有某些不同之处,故其嗓音的异常与防治有某些特点。小儿的喉腔、声门狭小,轻度炎症或水肿即可引起呼吸困难。其喉软骨尚未钙化,较成人柔软。喉粘膜下淋巴组织丰富,组织较疏松,故炎症后常有明显肿胀,且因小儿的神经系统发育不稳定,易受刺激而发生喉痉挛,故更易 First, the characteristics of pediatric throat With the development of vocal organs, children’s voice may appear some physiological changes and pathological abnormalities. Due to pediatric anatomy and physiology and other aspects of the throat and adults have some differences, so the voice of the abnormalities and prevention have some characteristics. Children’s throat, glottis narrow, mild inflammation or edema can cause breathing difficulties. Its laryngeal cartilage is not yet calcified, softer than adults. Laryngeal submucosal lymphoid tissue rich, loose tissue, it often after the inflammation obvious swelling, and due to the development of children’s nervous system instability, irritability and laryngospasm, it is easier