Exam 8: Heart and Blood Vessels

Life-threatening aneurisms are most likely to occur in

The ________ division of the nervous system causes the rate of heart contraction to increase.

The process by which a small balloon is used to widen a narrowed blood vessel is ________.

The atrioventricular valves are closed when the heart is in complete diastole.

Which one of the following segments of the typical cardiac cycle is the briefest?

The buildup of fatty deposits on the inner wall of arteries is associated with higher levels of HDLs (high-density lipoproteins) in the blood.

Blood pressure in veins is lower than blood pressure in arteries, due in part to the larger diameter of veins.