The condition of the thyroid gland that causes low thyroid levels in the blood, resulting in sluggishness, slow pulse, and often obesity is _______________.

The ___________ system maintains the internal fluid environment by acting as an intermediary between the blood in the capillaries and tissue cells.

A goiter may be due to lack of __________.

Chest pain caused by a temporary loss of oxygenated blood to the heart muscle is called ___________.

The distribution of blood throughout the body is called ______________ circulation.

Atherosclerosis is most often the cause of _____________.

The combining form meaning pulse is _______________.

Vascular pertains to a/an _______________.

High blood pressure caused by the effects of another disease is __________.

______________ is the change of a myocardial cell from a resting state to a state of contraction.