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Anatomy Atlases: Atlas of Microscopic Anatomy: Section 1 - Cells Atlas of Microscopic Anatomy: Section 15 - Endocrine Glands

Plate 15.283 Pituitary Gland

Ronald A. Bergman, Ph.D., Adel K. Afifi, M.D., Paul M. Heidger, Jr., Ph.D.
Peer Review Status: Externally Peer Reviewed

Anterior lobe

Plate 15.283 Pituitary Gland

Human, 10% formalin, Masson's stain, 612 x.

Colloid: Secretion product. Found in the center of some cords.

Chromophobe: Small, faintly staining and less numerous than other cells in the pituitary. Scanty cytoplasm devoid of granules. Tend to cluster near center of cords.

Eosinophils: Alpha cells. Larger than chromophobes. Cytoplasm filled with acidophilic granules. Source of growth and lactogenic hormones.

Basophil: Beta cell. Larger than the average eosinophil and less heavily granulated. Secretes thyroid- stimulating hormone, adrenocorticotropic hormone, follicle-stimulating hormone, and luteinizing hormone.

Red blood cells: Filling the sinusoids.  

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