Light micrograph of a thyroid gland. The glandular parenchyma is made up of small follicles full of colloid. A tracheal cartilage is at top.

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Photo credit: © JOSE CALVO / SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
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Keywords: -, anatomical, anatomy, biological, biology, colloid, cuboidal, endocrine, endocrinology, epithelial, follicle, follicular, gland, healthy, histological, histology, hormonal, hormone, hormones, light, lm, medicine, micrograph, microscope, microscopy, normal, system, thyroglobulin, thyroid