Ultrastructures of the epithelial basement membrane and the subepithelial capillaries in rabbit palatine tonsils.
スポンサーリンク
概要
- 論文の詳細を見る
The ultrastructure of both the epithelial basement membrane and the subepithelial capillaries in rabbit tonsils was investigated using light and transmission electron microscopy of sections, and scanning electron microscopy of alkali-water macerated tissues. The basement membrane of the crypt epithelium was seen to consist of the lamina lucida, lamina densa and lamina fibroreticularis. The lamina fibroreticularis is made up of both fine and thick collagen fibrils. The basement membrane possesses numerous pores (0.5-20μm in diameter) through which free cells migrate. The basement membrane overlying the follicle protrudes hemispherically towards the crypt lumen, while that over the interfollicular area forms many papillary projections. The capillaries are surrounded by collagen fibrillar sheaths invariably located below the collagen fibrillar sheet of the epithelial basement membrane. The capillaries immediately below the crypt epithelium, including switch-back loops of capillaries in the papillae, are fenestrated sinusoids (20-40μm in diameter). Plasma cells, lymphocytes and macrophages are numerously gathered around the capillaries. Possible functional relations between these free cells and the fenestrated sinusoids are discussed.
- 国際組織細胞学会の論文
国際組織細胞学会 | 論文
- Immunohistochemical localization of vascular endothelial growth factor in the endocrine glands of the rat
- Reduced expression of endogenous secretory receptor for advanced glycation endproducts in hippocampal neurons of Alzheimer’s disease brains
- A longitudinal study on the expression of the opsin gene in the degenerating retina of C3H/He mice.
- Expression of the arylhydrocarbon receptor in the periimplantation period of the mouse uterus and the impact of dioxin on mouse implantation
- Immunohistochemical studies on the development of tyrosine hydroxylase- and serotonin-immunoreactive neurons in fetal dorsal raphe tissue transplanted into the anterior eye chamber of adult rats.