False-colour transmission electron micrograph (TEM) of a cell of the human anterior pituitary gland (adenohypophysis) showing the secretion of gonadotrophic hormones (gonadotrophins). The cell nucleus at bottom left is coloured orange: circular packets" of hormone in the surrounding cytoplasm are coloured dark pink. The group of gonadotrophins includes any hormones synthesised & secreted by the pituitary that act on the sex organs to produce sex hormones and sperm or ova. Important examples include follicle-stimulating hormone and luteinizing hormone. Magnification: x7,000 at 6x7cm size."
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TOP10223373
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達志影像
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RM
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