50.0 MB (8.3 MB compressed)
5119 x 3411 pixels
43.4 x 29.0 cm ⏐ 17.1 x 11.4 in (300dpi)
BIOPHOTO ASSOCIATES / SCIENCE PHOTO LIBRARY BIOPHOTO ASSOCIATES / SCIENCE PHOTO LIBRARY
Light micrograph of a normal parathyroid gland. There are usually 4 parathyroid glands which produce the parathyroid hormone to control the amount of calcium in the blood and bones.
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