Cardiovascular Concept Lab (Shadow Health) Exam SCRIPT
2026/2027 WITH EXPERT-VERIFIED ANSWERS RATED A+
• right and left atria, right and left ventricles -✓✓ four chambers of the heart
• right and left atrium -✓✓ receive blood returning to the heart
• right and left ventricle -✓✓ Pump blood out of the heart to the lungs and rest of the
body
• right atrium (RA) -✓✓ receives the system venous return from the inferior vena cava
(IVC) and superior vena cava (SCV). This blood is deoxygenated from its travels
through the body
It collects this blood and directs it into the right ventricle (RV) through the tricuspid valve
• right ventricle -✓✓ pumping chamber on the right side of the heart
it pumps the deoxygenated blood through the pulmonic valve into the pulmonary artery
(PA)
from there the two main branches of the PA deliver the pulmonary cardiac output to the
lungs for oxygenation
• left atrium (LA) -✓✓ collects the pulmonary venous return form the four main
pulmonary veins. Remember these veins contain oxygenated blood (while system veins
contain deoxygenated blood)
It directs this blood through the mitral valve into the left ventricle (LV)
• Left ventricle -✓✓ pumping chamber on the left side of the heart
generating roughly 5x the pressure of the right side
it pumps the oxygenated blood through the aortic valve into the aorta (Ao) and
throughout the body
• pulmonic, aortic, tricuspid, mitral -✓✓ four cardiac valves
• cardiac valves -✓✓ vital to the movement of blood in the heart
by opening and closing at specific moments within the cardiac cycle they prevent the
backflow of blood
• changes in blood flow as the valves close -✓✓ what causes normal heart osunds
• S1 -✓✓ first heart sound occurs when the mitral and tricuspid valve close
• S2 -✓✓ second heart sound happens with the closing of the aortic and pulmonic
valves
2026/2027 WITH EXPERT-VERIFIED ANSWERS RATED A+
• right and left atria, right and left ventricles -✓✓ four chambers of the heart
• right and left atrium -✓✓ receive blood returning to the heart
• right and left ventricle -✓✓ Pump blood out of the heart to the lungs and rest of the
body
• right atrium (RA) -✓✓ receives the system venous return from the inferior vena cava
(IVC) and superior vena cava (SCV). This blood is deoxygenated from its travels
through the body
It collects this blood and directs it into the right ventricle (RV) through the tricuspid valve
• right ventricle -✓✓ pumping chamber on the right side of the heart
it pumps the deoxygenated blood through the pulmonic valve into the pulmonary artery
(PA)
from there the two main branches of the PA deliver the pulmonary cardiac output to the
lungs for oxygenation
• left atrium (LA) -✓✓ collects the pulmonary venous return form the four main
pulmonary veins. Remember these veins contain oxygenated blood (while system veins
contain deoxygenated blood)
It directs this blood through the mitral valve into the left ventricle (LV)
• Left ventricle -✓✓ pumping chamber on the left side of the heart
generating roughly 5x the pressure of the right side
it pumps the oxygenated blood through the aortic valve into the aorta (Ao) and
throughout the body
• pulmonic, aortic, tricuspid, mitral -✓✓ four cardiac valves
• cardiac valves -✓✓ vital to the movement of blood in the heart
by opening and closing at specific moments within the cardiac cycle they prevent the
backflow of blood
• changes in blood flow as the valves close -✓✓ what causes normal heart osunds
• S1 -✓✓ first heart sound occurs when the mitral and tricuspid valve close
• S2 -✓✓ second heart sound happens with the closing of the aortic and pulmonic
valves
