___________________________is a normal anatomic variant arising from the thyroid isthmus.

____________________ refers to tthe enlargement of the thyroid gland that can befocal or diffuse; multiple nodules may be present.

____________________________ refers to the extension superiorly from the isthmus, which is present in small percentage of patients.

Put the following normal renal structures in order from least to greatest echogenicity;

The following image is of a normal appendix with a diameter of 7.5 mm.  

The normal thickness of the renal cortex is at least _____________ .

The normal measurement of the kidney is_______________________ .

Label the following renal structures:

The normal measurement of the thyroid isthmus is _____________________________.

The parathyroid glands are normally located on the ________________________ surface of the thyroid gland.