发现一种声波传入内耳的新途径

对一位先天性外耳道缺失的患者调查发现，声波传入内耳，除了正常的骨传导和气传导以外，还存在着一种口鼻—咽—咽鼓管—中耳—内耳途径．     

青海玉树多目涡虫咽部组织结构的显微观察

利用连续石蜡切片(包括水平切、矢状切和横切)技术,H.E染色和光镜观察的方法,对青海玉树多目涡虫咽部的组织结构进行了初步的研究,结果表明:咽壁包括三层结构,外层由单层柱状上皮构成,似合胞体,上皮细胞游离面可见三层嗜酸性带状结构,其中,外层带呈刷状;咽壁的中层分为内侧发达的环肌和外侧较薄的纵肌两部分;邻接咽腔的内层上皮在游离面呈指状突起,未见上皮细胞间界限.     

南方大口鲶咽部粘膜上皮的组织结构观察研究

用光镜和扫描电镜对南方大口鲶咽部的粘膜上皮进行了观察.结果表明,南方大口鲶的咽部粘膜上皮为复层上皮组织,分布有多种上皮细胞,其中大多为混和性的粘液腺细胞.在粘膜中还有味蕾的分布,此处的味蕾为Ⅲ型味蕾.     

小熊猫咽和食管的组织学研究

对小熊猫的咽和食管的组织结构进行了研究。结果表明：小熊猫的咽壁由粘膜（包括上皮和固有膜）、粘膜下层内除咽肌所组成，粘膜下层内除分布有混合腺外，还有大量的骨骼肌纤维束，小熊猫的食管壁由粘膜（包括上皮、固有膜和粘膜肌、粘膜下层、肌肉层和纤维膜所组成，食管壁的厚度，食管腔的大小及食管皱壁的有无等方面存在较大个体差异，固有膜有乳突插入复层扁平上皮内，粘膜下层内有大量的食管腺分布，肌肉层从食管的前段到后段全是骨骼肌，分内、外两层，并不呈典型的内环行、外纵行排列，而呈现多样性，并与大熊猫食管壁组织结构作了比较研究。     

歌唱共鸣原理及作用论析

共鸣现象在歌唱学习中是一个很值得研究与探讨的问题,因为共鸣在歌唱声音的音量上、音色和音质上起着决定性的作用,同时也对歌唱声区的统一起着至关重要的作用.所以,认识和了解歌唱的共鸣原理,对于我们建立起美好的歌声是极为重要的.     

On Paraclausenia gen. nov., Metapterencyrtus and Neocharitopus from India (Hymenoptera: Encyrtidae)

Swallowing sea water plays an important part in the process of egestion in several, epidermis-feeding, monogenean parasites from the skin and gills of fishes. In Entobdella soleae, from the skin of the common sole, Solea solea, the retracted pharynx acts as a peristaltic pump, forcing sea water into the branched and blind-ending intestine, inflating the gut diverticula and providing a suspension medium for debris from the digestive process. This secondary role for the pharynx has not previously been recorded. Inflation of the gut extends the muscles lying beneath the gastrodermis, and possibly neighbouring parenchymal muscles, permitting them to contract. This expels the sea water and flushes out the debris from the gut via the mouth. In E. soleae, the myofibrils associated with the gastrodermis appear to have narrower thick filaments than nearby parenchymal myofibrils. A similar series of swallowing movements, involving consecutive contractions of the pharynx followed by an egestion event, has been observed in the freshwater temnocephalan ectosymbiont Craspedella sp., from the gills of the Australian crayfish Cherax quadricarinatus.