猴鼻咽部的解剖学

本文对10个猴头的鼻咽部作了肉眼形态学观察,组织学观察及测量了鼻咽部的10个部位,并研究了猴鼻咽部的周界。我们观察到:1、猴鼻咽部有鼻咽中隔,它是鼻中隔向后的延续,因而不存在有鼻后孔,故不能以鼻后孔作为鼻咽前界的定位点。2、鼻咽中隔为猴所特有,不见于人和免,鼠等动物。鼻咽中隔把鼻咽腔分为左右两个相等的牛角管形的腔,耳咽管开口于鼻咽侧壁中部偏后的位置。鼻咽中隔内有丰富的淋巴组织,向后部淋巴组织逐渐减少并上移至鼻咽顶壁。3、鼻咽侧壁于耳咽管前后均可见肌组织,由前向后肌组织逐渐加多。4、本文对猴鼻咽部10个部位作了测量,其平均数为:鼻咽顶壁长27mm,鼻咽底壁长33mm,耳咽管口至鼻咽前界11mm,耳咽管口至鼻晒后壁7mm,外鼻孔至鼻咽前界55mm。本研究观察复盖猴鼻咽部各部位的上皮,均为假复层纤毛柱状上皮,未见有鳞状上皮。

ANATOMY OF THE NASOPHARYNX OF THE MONKEY

The heads of 10 adult Rhesus monkeys were dissected to display the gross morphology of the nasopharynx. The length and width of various parts of it were also measured. Serial sections from two monkeys and sections from various parts were stained with hematoxylin and eosin, We found that there is a median membranous nasopharyngeal septum which divides the entire nasopharyngeal cavity into two halves likein the nose. In the anterior part of the septum there is abundant lymphoid tissue while in the posterior part show gradual ascend to the roof of the nasopharynx. There are muscles fibers beneath the mucous membrane of the nasopharynx but not in the nose. The avarage values of the measurements: the length of the roof is 27 mm.; the length of the floor is 33mm.; the length from the anterior border to the tubal orifice is 11mm. and from tubal orifice to the posterior border is 7mm. The distance from the hare to the anterior border of nasopharynx is 55mm. Throughout the nasopharynx it is covered by pseudostratified columnar ciliated epithelium.