This structure of the conduction system has a built in delay to allow the atria to empty before the ventricles contract:

Choose the statement below that best describes the path of blood through the systemic circuit:

Jeremy’s grandfather is being treated with Beta Blockers for a heart condition.  What do Beta Blockers do?

Vasodilation refers to the contraction of the smooth muscle within the wall of a blood vessel making the diameter smaller.

Endocrine glands release their product through a duct into a body cavity;  exocrine glands release their product into the blood stream.

Which statement below is FALSE regarding blood pressure:

The T wave of the EKC represents:

When you take someone’s pulse, you are feeling the expansion of the elastic walls of an artery as the left ventricle forces blood into it.

Oxygen poor blood from the arms will return to the heart by way of this vessel:

Chordae tendinae anchor the flaps of the atrioventricular valves into the papillary muscles.