Dissection of the rodent thyroid gland. (A) Surgical incision, (B) isolate the salivary glands, (C) dissociate the muscles, (D) free the trachea, (E) section the lateral muscles, (F) slide a needle underneath the trachea, revealing the thyroid gland. Modified with permission from a web posting by Prof. Emeritus Jean-Pierre Herveg and Christian Regaert.