Abstract
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
Highlights
The Bats are the only group of mammals that have the capacity of echolocate and powerful flight.In bats, such as Myotis lucifugus lucifugus [1,2] Vesperugo savi and Vesperugo picolo [3] Cynopterus sphinx [4], Rousettus leschenaultia [5], Scotophilus heathi [6,7] and Hipposideros lankadiva [8] as in all mammals, the hormones of the anterior pituitary glands regulate the activities of the gonads
My article concentrated on pituitary cells of Rhinopoma hardwickei as example of insectivorous bats because in the Egyptian bats there were several similarities and differences between the shape and the distribution pattern of the anterior pituitary cells, but these data were insufficient, the present study was carried out new insectivorous species Rhinopoma hardwickei in order to elucidate the similarities and the differences
Cell identification and differentiation in the mammalian pituitary gland is based on the activity of the Golgi-apparatus, the elaboration of secretary granules, liberation of the granules from the cell membrane and morphology of the mitochondria
Summary
The Bats (order Chiroptera) are the only group of mammals that have the capacity of echolocate and powerful flight In bats, such as Myotis lucifugus lucifugus [1,2] Vesperugo savi and Vesperugo picolo [3] Cynopterus sphinx [4], Rousettus leschenaultia [5], Scotophilus heathi [6,7] and Hipposideros lankadiva [8] as in all mammals, the hormones of the anterior pituitary glands regulate the activities of the gonads. Madkour et al [11] studied the histological characterizes of the pituitary gland of common bats from Egypt. They observed that there is a wall developed pars nervosa, pars intermedia and infundibular stalk but the residual lumen is poorly developed in some species than others
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
