| Thyroid gland. Coloured scintigram (anterior view) 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 Technetium-99m (Tc-99m), a scintigram shows the activity of the thyroid gland, from red (most active) through yellow and green to blue (least active). | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / CENTRE JEAN-PERRIN |
| Bildgröße: | 2362 px × 2362 px |
| Modell-Rechte: | nicht erforderlich |
| Eigentums-Rechte: | nicht erforderlich |
| Restrictions: | - |