The sinoatrial (SA) node is indicated by

The atrioventricular bundle (Bundle of His) is represented by

The atrioventriclar (AV) node is indicated by

The bundle branches are indicated by

The pointed, inferior portion of the heart, known as the ____, rests on the diaphragm and is oriented toward the left hip.

The two superior receiving chambers of the heart are known as the ____, while the two inferior discharging chambers of the heart are known as the ____.

The valves located between the atria and ventricles are known as the ____ valves.

Blood leaves the left ventricle through an artery known as the ____.

he transportation of blood from the right side of the heart to the lungs and back to the left side of the heart is known as ____ circulation.

The tiny white cords that anchor the cusps or flaps of endocardium to the walls of the ventricles are called the ____.

Oxygenated blood nourishing the myocardium comes from vessels that branch off the aorta called ____.

The walls of the ____ are substantially thicker because that chamber acts as the more powerful systemic pump of the heart.

The bicuspid valve is also referred to as the ____ valve.

When ventricles ____, the AV valves are closed.

The length of the cardiac cycle is normally ____ second(s) in length.

The first heart sound, "lub," is caused by the closure of the ____ valves.

The term that means heart contraction is ____.

During mid-to-late diastole, blood flows from the atria to the ____.

The average heart beats about ____ times per minute.

Large blood vessels that carry blood away from the heart are called ____.

Arteries are normally depicted as red while veins are colored blue. The exceptions to this rule are the ____ arteries and veins.

Capillary beds are drained by vessels known as ____.

Large veins have ____ to prevent the backflow of blood.

The largest artery in the body is the ____.

Veins draining the head and arms empty into the ____, which carries blood to the right atrium of the heart.

The narrowing of blood vessels is known as ____.

Sustained elevated arterial blood pressure above 140/90 mm Hg is a condition known as

Pulmonary circulation involves blood flow to and from the heart and the ____.

The left atrium receives blood from the ____.

Pulmonary arteries transport ____.

The tricuspid valve is located between the ____.

Which one of the following blood vessels carries oxygenated blood?

The heart sounds "lub" and "dup" result from ____.

The path of blood flow within the systemic vascular system is ____.

Which of the following increases heart rate?

Veins ____.