火鸡、家禽和鸭的哈德氏腺及泪腺导管上皮的超微结构

Maxwell M H, Burns R B

J Anat. 1979 May;128(Pt 3):445-59.

The ultrastructure of the epithelium in the Harderian and lacrimal gland ducts of the turkey, fowl and duck has been investigated. The findings establish that the ducts are fundamentally similar in morphology, although species differences occur. The duct epithelia are composed of cuboidal, columnar or pseudostratisfied columnar cells with many secretory vesicles as well as goblet cells. PAS-positive fibrillary rods and crystalline inclusions occupied the cisternae of the rough endoplasmic reticulum of the epithelial cells of turkeys. The crystals, which were thought to evolve from the rods, had a mean periodicity of 7.0 nm. In chicks between 1 and 3 days of age, but not in poults and ducklings, the duct epithelia displayed large intracytoplasmic deposits of glycogen which disappeared by the seventh day.

对火鸡、家禽和鸭的哈德氏腺及泪腺导管上皮的超微结构进行了研究。研究结果表明，尽管存在物种差异，但这些导管在形态上基本相似。导管上皮由立方体细胞、柱状细胞或假复层柱状细胞组成，含有许多分泌小泡以及杯状细胞。PAS阳性的纤维状杆状物和晶体状内含物占据了火鸡上皮细胞粗面内质网的池。这些晶体被认为是由杆状物演变而来，平均周期为7.0纳米。在1至3日龄的雏鸡中，导管上皮细胞内有大量糖原沉积，但在小火鸡和小鸭中没有，这些糖原沉积在第7天时消失。