MICHAEL ROSS / SCIENCE PHOTO LIBRARY MICHAEL ROSS / SCIENCE PHOTO LIBRARY
Light micrograph at 1100x magnification of a region of the pars distalis, the anterior part of the adenohypophysis (H&E stain). The adenohypophysis is a glandular lobe of the pituitary gland, an endocrine gland attached to the base of a vertebrate brain, that secretes many hormones. The eosinophils (red), white blood cells easily stained by eosin or other acid dyes and the basophils (purple), cells easily stained by basic dyes, contain numerous small granules that give the cells their staining characteristic. The chromophobes (pale blue), cells not easily stained, contain few granules; their cytoplasm gives the cells their staining characteristic.
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