Cardiovascular System Questions with
Correct Answers 2025/2026
What is the function of the cardiovascular system? - CORRECT ANSWER -Transportation
About how much does the heart weigh and what is it's size? - CORRECT ANSWER -Less than a
pound and the size of a fist
Mediastinum - CORRECT ANSWER -Space between the lungs where the heart lies
Apex - CORRECT ANSWER -The pointed end of the heart that rests on the diaphragm (it is
directed toward the left hip)
Base - CORRECT ANSWER -Top part of the heart that is broad
Pericardium - CORRECT ANSWER -Double-walled sac that the heart sits in and contains serous
fluid between the layers to prevent friction
Pericarditis - CORRECT ANSWER -Inflammation of the pericardium that results in the decrease in
the serous fluid
What are the 3 layers of the heart wall? - CORRECT ANSWER -1. Epicardium
2. Myocardium
3. Endocardium
Endocardium - CORRECT ANSWER -A thin sheet of endothelium that lines the heart chambers, it
is continuous with the linings of the blood vessels (innermost layer of the heart wall)
, How many hollow chambers does the heart has? - CORRECT ANSWER -4
Atria - CORRECT ANSWER -Receiving chambers, blood comes into the heart
Where are the atria located? - CORRECT ANSWER -Superior
Ventricles - CORRECT ANSWER -Bottom chambers that send out blood
Interatrial or intraventricular septum - CORRECT ANSWER -Divides the heart longitudinally
Which side of the heart receives oxygen-poor blood from the veins? - CORRECT ANSWER -The
Right Side
Superior and Inferior Venae Cavae - CORRECT ANSWER -The veins that bring in blood from the
upper and lower parts of the body to the heart
Pulmonary Arteries - CORRECT ANSWER -Carry blood to the lungs where oxygen is picked up
and carbon dioxide is unloaded. (Takes blood to the lungs)
Pulmonary Vein - CORRECT ANSWER -Vein that brings blood back from the lungs to the heart
Aorta - CORRECT ANSWER -the largest artery in the body that sends out oxygenated blood to
the body
How many valves are contained within the heart? - CORRECT ANSWER -4
Correct Answers 2025/2026
What is the function of the cardiovascular system? - CORRECT ANSWER -Transportation
About how much does the heart weigh and what is it's size? - CORRECT ANSWER -Less than a
pound and the size of a fist
Mediastinum - CORRECT ANSWER -Space between the lungs where the heart lies
Apex - CORRECT ANSWER -The pointed end of the heart that rests on the diaphragm (it is
directed toward the left hip)
Base - CORRECT ANSWER -Top part of the heart that is broad
Pericardium - CORRECT ANSWER -Double-walled sac that the heart sits in and contains serous
fluid between the layers to prevent friction
Pericarditis - CORRECT ANSWER -Inflammation of the pericardium that results in the decrease in
the serous fluid
What are the 3 layers of the heart wall? - CORRECT ANSWER -1. Epicardium
2. Myocardium
3. Endocardium
Endocardium - CORRECT ANSWER -A thin sheet of endothelium that lines the heart chambers, it
is continuous with the linings of the blood vessels (innermost layer of the heart wall)
, How many hollow chambers does the heart has? - CORRECT ANSWER -4
Atria - CORRECT ANSWER -Receiving chambers, blood comes into the heart
Where are the atria located? - CORRECT ANSWER -Superior
Ventricles - CORRECT ANSWER -Bottom chambers that send out blood
Interatrial or intraventricular septum - CORRECT ANSWER -Divides the heart longitudinally
Which side of the heart receives oxygen-poor blood from the veins? - CORRECT ANSWER -The
Right Side
Superior and Inferior Venae Cavae - CORRECT ANSWER -The veins that bring in blood from the
upper and lower parts of the body to the heart
Pulmonary Arteries - CORRECT ANSWER -Carry blood to the lungs where oxygen is picked up
and carbon dioxide is unloaded. (Takes blood to the lungs)
Pulmonary Vein - CORRECT ANSWER -Vein that brings blood back from the lungs to the heart
Aorta - CORRECT ANSWER -the largest artery in the body that sends out oxygenated blood to
the body
How many valves are contained within the heart? - CORRECT ANSWER -4
