SET 1: Cardiovascular System Overview
1. The cardiovascular system consists of the ___, which is a muscular pump, and the
___, which provide pulmonary and systemic circulation.
o A) heart, arteries
o B) heart, veins
o C) heart, capillaries
o D) lungs, heart
Correct Answer: A) heart, arteries
2. The precordium is:
o A) The anterior chest overlying the heart and great vessels
o B) Located within the mediastinum
o C) Located within the pericardial space
o D) The space within the chambers of the heart
Correct Answer: A) The anterior chest overlying the heart and great vessels
3. The mediastinum is defined as the location where:
o A) The superior and inferior vena cavae enter the right atrium
o B) The middle of the heart is
o C) The heart, great vessels, trachea, and esophagus are
o D) The atria and ventricles are separated right from left
Correct Answer: C) The heart, great vessels, trachea, and esophagus are
4. Which statement accurately describes the anatomical orientation of the heart in
relation to its base and apex?
o A) The apex of the heart is the broader part located at the top
o B) The base of the heart is the narrower part located at the bottom
o C) The base of the heart is the broader part located at the top
o D) The apex of the heart is the broader part located at the bottom
Correct Answer: C) The base of the heart is the broader part located at the top
5. During contraction, the apex beats against the chest wall, producing an ____.
o A) Apical impulse
o B) Systolic impulse
o C) Diastolic impulse
o D) Cardiac impulse
, Correct Answer: A) Apical impulse
6. The apical impulse is a result of ____ contraction and thrust, usually felt in the 5th
intercostal space at the midclavicular line.
o A) Left atrial
o B) Left ventricular
o C) Right atrial
o D) Right ventricular
Correct Answer: B) Left ventricular
7. This great vessel(s) return unoxygenated blood to the right side of the heart:
o A) Superior and Inferior vena cava
o B) Pulmonary veins
o C) Pulmonary artery
o D) Aorta
Correct Answer: A) Superior and Inferior vena cava
8. Which layer of the heart is a fibrous sac that surrounds and protects the heart and
contains a small amount of fluid to help with movement and friction?
o A) Pericardium
o B) Endocardium
o C) Mediastinum
o D) Precordium
Correct Answer: A) Pericardium
9. The four chambers of the heart are separated by valves, whose main purpose is to
prevent backflow of blood. Valves are unidirectional and open and close passively in
response to _____________________ gradients in moving blood.
o A) Pressure
o B) Electrical
o C) Temperature
o D) Volume
Correct Answer: A) Pressure
10. Which of the following statements accurately describes the function of the tricuspid
valve in the cardiovascular system?
A) It prevents backflow of blood from the left ventricle to the left atrium
B) It separates the right atrium from the right ventricle and prevents backflow during ventricular
contraction
C) It allows blood to flow from the right ventricle to the pulmonary artery during diastole
D) It is responsible for the closure of the aortic valve during the cardiac cycle