உட்சுரப்பியல் & வளர்சிதை மாற்ற நோய்க்குறி
திறந்த அணுகல்

சுருக்கம்

Differentiation between the Anterior Pituitary Cells of the Egyptian Insectivorous Bats Rhinopoma hardwickei using Transmission Electron Microscope

Selim Atteyat Mohammed

In the pituitary gland of some species of the Egyptian bats there were several similarities and differences between the external shape and the distribution pattern of the anterior cells, but these data were insufficient, because we don’t known what about with other species, so the present study was carried out new insectivorous species Rhinopoma hardwickei in order to elucidate the similarities and the differences. The results indicate that, the gland is irregular in shape and two types of cells appeared by the semi thin sections. The acidophilic and the basophilic cells distributed heterogeneous in the body of the gland. (STH) Somatotropin Hormones are most numerous, the nucleus is irregular and eccentric with endoplasmic reticulum. The secretary granules are large with dense granules. Luteotropic Hormone (LTH): The nucleus is eccentrically near the plasma membrane, the mitochondria are spherical or elongated, the endoplasmic reticulum is rough and the granules are more. (ACTH) Adreno Cortico Tropic Hormone: These cells are found singly, irregular with eccentric nucleus. Secretary granules are small and spherical shaped, while the (TSH) Thyroid Stimulating Hormone: with small secretary granules but the (FSH and LH) Follicle Stimulating Hormone and Luteinizing Hormone: are found singly, angular in shape with eccentric nucleus and the secretary granules are spherical or ovoid in shaped and exhibit variation in electron density than STH cells. The differences in shape and distribution may be related to the phylogeny