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(BQ) Part 2 book "Color atlas of cytology, histology and microscopic anatomy" presents the following contents: Endocrine glands, digestive system, respiratory system, urinary organs, female sexual organs, integumentary system, skin, somatosensory receptors, sensory organs, central nervous system, tables. | Endocrine Glands 344 Hypophysis-Pituitary Gland The human hypophysis hypophysis cerebri weighs about 600-900 mg. It is enveloped by a thin connective tissue capsule . Distinguished by their modes of development and detail structure there are the large glandular lobe the adenohypophysis 2 and the smaller cerebral lobe the neurohypophysis 3. The adenohypophysis anterior lobe pars distalis continues toward the cranium as tubular part of the hypophysis cerebri pars infundibu-laris Bl. The infundibulum 13 connects the neurohypophysis posterior lobe pars nervosa to the diencephalon. The intermediary lobe E between anterior and posterior lobes is part of the adenohypophysis. This sagittal section distinctly shows these different parts of the hypophysis. 1 Capsule 2 Anteriorlobe parsdistalis 3 Posteriorlobe parsnervosa 4 Infundibular lobe pars infundibularis 5 Infundibulum with eminentia medians 6 Intermediary lobe with colloid cysts adenohypophysis Stain azan magnification X 7 345 Adenohypophysis-Anterior Lobe The anterior lobe of the adenohypophysis pars distalis consists of cords and nests of different types of epithelial cells. These are surrounded by reticular fibers and wide blood sinuses. The cells are grouped according to their affinities to dyes as acidophilic n basophilic 2 or chromophobic 3 cells. The three cell types can be distinguished in this figure without much effort. Acidophilic cells are round and contain a dense acidophilic population of granules. There are somatotropic and mammotropic acidophilic cells. The granules in somatotropic acidophilic cells have diameters of about 300nm those in mammotropic acidophilic cells have diameters of 600-900nm. Basophilic cells 2 come in various sizes. They contain granules. There are gonadotropic basophilic cells granule size 300-400nm thyrotropic basophilic cells granule size 60-160nm adrenotropic basophilic cells granule size 200-500nm lipotropic basophilic cells granule size 200-500nm and me-lanotropic basophilic
