Description: Segment 1 The patient's history is given by intertitles, and the patient is shown. His goitre and eyes are seen close up to show the effects of the hyperthyroidism. The results of his electrocardiogram are also shown. The patient is anaesthetised. An incision is made in the neck. The jugular veins are ligatured. Time start: 00:00:00:00 Time end: 00:05:27:17 Length: 00:05:27:17 Segment 2 The thyroid gland is exposed. The blood vessels surrounding the thyroid are secured. The lobes of the thyroid gland are exposed and excised, with intertitles explaining the steps of the procedure. Almost the whole of the thyroid gland is removed. The resulting cavity is inspected. Time start: 00:05:27:17 Time end: 00:09:37:15 Length: 00:04:09:23 Segment 3 The muscles on each side of the thyroid are sutured. A wound is made in the skin to allow for introduction of a drainage tube. The wound is closed with sutures. The patient's blood pressure is recorded. Time start: 00:09:37:15 Time end: 00:15:02:01 Length: 00:05:24:11 Segment 4 A chart shows the length of the operation, with the steps of the procedure marked along a time line. A diagram shows what a microscopic portion of the removed thyroid would look like. The excised thyroid is displayed, and its anatomy explained with labels. The operation finishes. Time start: 00:15:02:01 Time end: 00:20:31:21 Length: 00:05:29:20