HESI A2 Cardiovascular
System Study Guide 2026 |
Anatomy & Physiology
Practice Questions and
Answers
|Graded A+ | Guaranteed
success|
Updated 2026 Questions and Answers
100% Verified Exam Prep and Comprehensive
Rationales
Included
, What vessel carries oxygenated blood? Pulmonary Vein
What valve prevents the backflow of blood from the right right atrioventricular valve (tricuspid valve)
ventricle into the right atrium?
Autorhythmicity is the responsibility of Cardiac pacemaker cells
The right and left atria depolarize and contract following SA node
the arrival of the action potential from the
High pressured blood in the ventricles force what to Semilunar valves
open?
How much blood is pumped from each ventricle during 70 mL
the ventricular ejection phase?
Which hormone decreases cardiac output by decreasing atrial natriuretic peptide
blood volume and preload?
What is the function of the valves in the heart? prevent backflow of blood through the heart
What vessel(s) deliver oxygenated blood to the left pulmonary veins
atrium?
During what part of the action potential will calcium ions Plateau Phase
enter the contractile cell?
The P wave on an electrocardiogram (ECG) represents Atria
the depolarization of cells in the:
What decreases heart rate? Acetylcholine
Walls of the heart Epicardium=Outer Layer
Myocardium=Middle Layer
Endocardium= Inner Layer
Pulmonary Blood Circuit Right ventricle to Lungs to Left Ventricle
Systemic Blood Circuit Left Ventricle to Body to Right Atrium
Full Blood Flow Vena Cava to Right Atrium to Right Ventricle to Pulmonary Artery to Lungs to
Pulmonary Veins to Left Atrium to Left Ventricle to Aorta to Body
Blood Supply to the Heart Left Coronary Artery supplies blood to left heart wall
Right Coronary Artery supplies blood to right heart wall
Heart conduction system SA Node to AV Node to Bundle of Heart to Bundle Branches to Purkinje Fibers
System Study Guide 2026 |
Anatomy & Physiology
Practice Questions and
Answers
|Graded A+ | Guaranteed
success|
Updated 2026 Questions and Answers
100% Verified Exam Prep and Comprehensive
Rationales
Included
, What vessel carries oxygenated blood? Pulmonary Vein
What valve prevents the backflow of blood from the right right atrioventricular valve (tricuspid valve)
ventricle into the right atrium?
Autorhythmicity is the responsibility of Cardiac pacemaker cells
The right and left atria depolarize and contract following SA node
the arrival of the action potential from the
High pressured blood in the ventricles force what to Semilunar valves
open?
How much blood is pumped from each ventricle during 70 mL
the ventricular ejection phase?
Which hormone decreases cardiac output by decreasing atrial natriuretic peptide
blood volume and preload?
What is the function of the valves in the heart? prevent backflow of blood through the heart
What vessel(s) deliver oxygenated blood to the left pulmonary veins
atrium?
During what part of the action potential will calcium ions Plateau Phase
enter the contractile cell?
The P wave on an electrocardiogram (ECG) represents Atria
the depolarization of cells in the:
What decreases heart rate? Acetylcholine
Walls of the heart Epicardium=Outer Layer
Myocardium=Middle Layer
Endocardium= Inner Layer
Pulmonary Blood Circuit Right ventricle to Lungs to Left Ventricle
Systemic Blood Circuit Left Ventricle to Body to Right Atrium
Full Blood Flow Vena Cava to Right Atrium to Right Ventricle to Pulmonary Artery to Lungs to
Pulmonary Veins to Left Atrium to Left Ventricle to Aorta to Body
Blood Supply to the Heart Left Coronary Artery supplies blood to left heart wall
Right Coronary Artery supplies blood to right heart wall
Heart conduction system SA Node to AV Node to Bundle of Heart to Bundle Branches to Purkinje Fibers
