Cardiovascular System

The innermost layer of the heart’s serous pericardium is termed the:

• myocardium

• parietal pericardium

• epicardium

• endocardium

The heart’s natural pacemaker is termed the:

• sinoatrial node

• atrioventricular node

• bundle of His/atrioventricular bundle

• left and right bundle branches

• Purkinje fibers

The node of the heart’s electrical conduction network found within between the atria and ventricles is known as the:

• sinoatrial node

• atrioventricular node

• bundle of His/atrioventricular bundle

• left and right bundle branches

• Purkinje fibers

Located between the right atrium and right ventricle is the:

• tricuspid valve

• pulmonary valve

• aortic valve

• bicuspid/mitral valve

Blood leaving the left atrium normally immediately flows through the:

• ileocecal valve

• tricuspid valve

• pulmonary valve

• bicuspid/mitral valve

A 64 y/o male presents to the triage nurse with gripping chest pain and a history of coronary artery disease. This symptom is called:

• ischemia

• myocardial infarction

• pericarditis

• angina pectoris

Which part of the heart is located at the 5th intercostal space at the midclavicular line:

• base

• apex

• tricuspid valve

• aortic valve

The inferior vena cava drains all of the following organs, EXCEPT the:

• legs

• pelvis

• abdomen

• head

Regular brushing and flossing of your teeth and avoiding intravenous drug abuse is important to prevent:

• cardiac tamponade

• embolus

• endocarditis

• myocardial infarction

A pericardial effusion with enough pressure to adversely affect heart function is called:

• cardiac tamponade

• embolus

• endocarditis

• myocardial infarction