High magnification light micrograph showing three large thyroid follicles. The central colloid has undergone a small retraction and appears separated

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High magnification light micrograph showing three large thyroid follicles. The central colloid has undergone a small retraction and appears separated from the epithelium. At the edge of the colloid are clear areas. These are the so-called resorption lacunae, that were formerly interpreted as an evidence of colloid reabsorption. Today they are considered artifacts. Around the left are the thyrocytes forming a simple cubic epithelium. Magnification: x360 when printed at 10 centimetres across.

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Size: 4877px × 3584px
Photo credit: © JOSE CALVO/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: anatomical, anatomy, biological, biology, body, cell, cells, colloid, cuboidal, endocrine, endocrinology, epithelial, follicle, follicles, gland, histological, histology, hormonal, hormone, hormones, human, light, lm, medical, medicine, micrograph, microscope, secretion, section, system, t3, t4, thyroglobulin, thyroid, thyroxin