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) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Pasieka, Alfred |
Taille de l’image : | 5456 px × 5354 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |