The atrioventricular node starts each heart beat and is often called the pacemaker of the heart for that reason.

During ventricular diastole, the bicuspid and tricuspid valves are closed.

Which one of the following represents the correct path for the transmission of an impulse in the intrinsic conduction system of the heart:

Abnormal heart sounds caused by turbulent flow through faulty valves are called

Calculate the net filtration pressure (NFP) with a blood hydrostatic pressure of 40 mm Hg and a blood colloid osmotic pressure of 25 mm Hg. Then determine if filtration or reabsorption occurs. NFP = ________ and results in a fluid ________.

Figure 20-2 Cardiac Cycle Use Figure 20-2 to answer the following questions: What volume is labeled “E” on the graph?

Diastolic pressure is the blood pressure in the arteries at the peak of ventricular contraction.

Each of the following factors would increase cardiac output except

The opening and closing of the precapillary sphincter is called

Reductions in venous return cause reductions in both stroke volume and cardiac output.