<prompt> Where is bruit heard in thyroid glandUpper poleLower poleMiddle poleLateral side  <response>: Thrill is felt in the upper pole of the thyroid and also bruit on auscultation. It is because in the upper pole, superior thyroid aery enters the gland superficially and so thrill and bruit can easily be felt. In the lower pole inferior thyroid aery enters the gland from deeper plane and so thrill cannot be felt. Reference: SRBs Manual of Surgery, 6th Edition, page no 463. 