Kör fare (Spalax leucodon) epidermisinin stratum basale ve stratum spinosum kısımlarının ince yapısı

Kör fare (Spalax leucodon) epidemisinin ince yapısı transmisyon elektron mikroskobu ile incelendi. Epidermiste, dermişten yüzeye doğru stratum basale, stratum spinosum, stratum granulosum ve stratum coraeum olmak üzere dört tabaka ayırt edildi. Stratum basale, bazal laminanın üzerinde genellikle silindirik ve küresel hücrelerin oluşturduğu tek katlı bir tabakadır. Bazal hücrelerin membranlarında çok sayıda dezmozomlar bulunur. Bazal plazma membramnda hemidezmozomlara ve bazal sitoplazmada pinositoz vesiküllerine rastlanır. Sitoplazmada tonofılament demetleri (tonofibriller) her tarafa uzanır. Hücrelerin fılamentsiz perinükleer bölgesini mitokondriler, ribozomlar ve çok az granüllü endoplazmik retikulum karakterize eder. Stratum spinosum'un hücreleri deri yüzeyine paralel bir şekilde yassılasın Tonofibriller, mitokondriler ve ribozomlar önemli sitoplazmik organellerdir. Anastomozlaşan tonofılament demetleri dezmozomlarm iç yüzüne ulaşır.

The ultrastructure of the stratum spinosum and stratum basale of the epidermis of molerat (Spalax leucodon)

The ultrastructure of the epidermis of molerat (Spalax leucodon) has been studied by the transmission electron microscope. In the epidermis, four strata from dermiş towards outside, i.e, stratum basale, stratum spinosum, stratum granulosum and stratum corneum have been discerned. Stratum basale is a single layer of generally columnar and spherical cells lying on the basal. lamina. Numerous desmosomes are found on the membranes of basal cells. The hemidesmosomes are found on the basal plasma membrane and pinocytotic vesicles in cytoplasm near basal surface. Tonofilament bundles (tonofibrils) run in all directions in cytoplasm. Mitochondria, ribosomes and scantly rough endoplasmic reticulum characterize a filament-free perinuclear region of the cells. The cells of stratum spinosum become progressively flattened in a plane parallel with the skin surface. Tonofibrils, mitochondria and ribosomes are the prominent cytoplasmic organelles. The anastomosing tonofilament bundles approach internal face of desmosomes.

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