Thyroid gland. Coloured scintigram of a healthy thyroid gland. This two-lobed endocrine gland is found in the neck, where it lies on top of the trache

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Thyroid gland. Coloured scintigram of a healthy thyroid gland. This two-lobed endocrine gland is found in the neck, where it lies on top of the trachea (windpipe). It is responsible for the production of thyroxine (T4), tri-iodothyronine (T3) and calcitonin, hormones that control the body's metabolism and energy levels. They are vital for normal mental and physical development in children. Using the radioactive tracer iodine- 123, a scintigram shows the activity of the thyroid gland, from red (most active) through yellow and green to blue (least active).

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Size: 5456px × 5354px
Photo credit: © ALFRED PASIEKA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: active, activity, anatomical, anatomy, biological, biology, body, calcitonin, diagnosis, diagnostics, endocrine, gamma, gland, healthy, hormone, hormones, human, iodine-123, lobe, lobes, medical, metabolic, metabolism, neck, normal, physiological, physiology, scan, scanner, scintigram, t3, t4, thyroid, thyroxine, tri-iodothyronine