Cardiovascular System Exam with All Correct & 100%
Verified Answers |Latest Update |Already Graded A+
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
What is the purpose of the valves? ✔Correct Answer-Allows blood to flow in only one direction
through the heart chambers (from the atria through the ventricles)
Where are the Atrioventricula Valves (AV) located? ✔Correct Answer-Between the atrial and the
ventricular chambers on each side.
What do the AV nodes do? ✔Correct Answer-They prevent backflow into the atria when the
ventricles contract
What is the left AV node called? ✔Correct Answer-Bicuspid or mitral valve
How many flaps does the bicuspid valve have? ✔Correct Answer-2
What is the right AV node called? ✔Correct Answer-Tricuspid Valve
How many flaps does the tricuspid valve have? ✔Correct Answer-3
Semilunar valves ✔Correct Answer-Set of valves that guards the bases of the 2 large arteries
leaving the ventricular chambers
How many leaflets do the semilunar valves have? ✔Correct Answer-3
Left Aortic ✔Correct Answer-three half-moon shaped cusps (flaps)
Right Pulmonic ✔Correct Answer-three half-moon shaped cusps (flaps)
When do the AV valves open? ✔Correct Answer-During heart relaxation
When are the semilunar valves closed? ✔Correct Answer-During heart relaxation
Valvular Stenosis ✔Correct Answer-When the valve flaps become stiff
Endocarditis ✔Correct Answer-Bacterial infection of endocardium (Enlarges Heart)
Coronary Arteries ✔Correct Answer-Branch from the base of the aorta and encircle the heart
Angina Pectoris ✔Correct Answer-When the myocardium is deprived of oxygen and results in a
crushing chest pain.
Myocardial Infacrtion ✔Correct Answer-Heart Attack, heart cells die because of prolonges oxygen
deprivation
Why are the walls of the atria thicker? ✔Correct Answer-They carry high pressure
How much blood does the heart pump in one day? ✔Correct Answer-It pushed the body's supply
of 6 quarts of blood (6 liters) through the blood vessels over 1000 times, meaning it actually pumps
about 6000 quarts of blood in a single day.
Verified Answers |Latest Update |Already Graded A+
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
What is the purpose of the valves? ✔Correct Answer-Allows blood to flow in only one direction
through the heart chambers (from the atria through the ventricles)
Where are the Atrioventricula Valves (AV) located? ✔Correct Answer-Between the atrial and the
ventricular chambers on each side.
What do the AV nodes do? ✔Correct Answer-They prevent backflow into the atria when the
ventricles contract
What is the left AV node called? ✔Correct Answer-Bicuspid or mitral valve
How many flaps does the bicuspid valve have? ✔Correct Answer-2
What is the right AV node called? ✔Correct Answer-Tricuspid Valve
How many flaps does the tricuspid valve have? ✔Correct Answer-3
Semilunar valves ✔Correct Answer-Set of valves that guards the bases of the 2 large arteries
leaving the ventricular chambers
How many leaflets do the semilunar valves have? ✔Correct Answer-3
Left Aortic ✔Correct Answer-three half-moon shaped cusps (flaps)
Right Pulmonic ✔Correct Answer-three half-moon shaped cusps (flaps)
When do the AV valves open? ✔Correct Answer-During heart relaxation
When are the semilunar valves closed? ✔Correct Answer-During heart relaxation
Valvular Stenosis ✔Correct Answer-When the valve flaps become stiff
Endocarditis ✔Correct Answer-Bacterial infection of endocardium (Enlarges Heart)
Coronary Arteries ✔Correct Answer-Branch from the base of the aorta and encircle the heart
Angina Pectoris ✔Correct Answer-When the myocardium is deprived of oxygen and results in a
crushing chest pain.
Myocardial Infacrtion ✔Correct Answer-Heart Attack, heart cells die because of prolonges oxygen
deprivation
Why are the walls of the atria thicker? ✔Correct Answer-They carry high pressure
How much blood does the heart pump in one day? ✔Correct Answer-It pushed the body's supply
of 6 quarts of blood (6 liters) through the blood vessels over 1000 times, meaning it actually pumps
about 6000 quarts of blood in a single day.
