Cardiovascular System: Heart
Anatomy, Blood Flow, and Myocardial
Infarction With Detailed Questions
And Correct Answers||Latest Exam
2026-2027||Already Graded A+
What is the primary function of the heart? -ANSWER The heart is the muscular pump
that moves blood through the pulmonary circuit for oxygenation and out to peripheral
tissues.
How many times does the heart beat in a day? -ANSWER The heart beats roughly
100,000 times each day.
What is autorhythmicity in the context of the heart? -ANSWER Autorhythmicity refers to
the heart's ability to generate its own action potentials to contract without external input.
How much blood does the heart move daily? -ANSWER The heart moves
approximately 3,600 gallons of blood through the body each day.
What is the average resting heart rate for adults? -ANSWER The average resting heart
rate for adults is 60-100 beats per minute.
What is the average resting heart rate for children? -ANSWER The average resting
heart rate for children is 80-205 beats per minute, depending on age.
What is the size and location of the heart? -ANSWER The heart is about the size of a
closed fist and is located in the pericardial cavity of the mediastinum, between the
lungs.
What are the four chambers of the heart? -ANSWER The four chambers are the right
atrium, left atrium, right ventricle, and left ventricle.
What is the function of the right atrium? -ANSWER The right atrium receives
deoxygenated blood from the venous system.
What is the function of the left atrium? -ANSWER The left atrium receives oxygenated
blood from the pulmonary circuit.
What is the role of the right ventricle? -ANSWER The right ventricle pumps blood to the
pulmonary circuit for oxygenation.
, What does the left ventricle do? -ANSWER The left ventricle pumps oxygenated blood
into systemic arterial circulation.
What are the heart valves and their purpose? -ANSWER The heart has four valves that
prevent backflow and allow movement of blood through the chambers.
What is the tricuspid valve? -ANSWER The tricuspid valve is located between the right
atrium and right ventricle and prevents backflow during ventricular contraction.
What is the function of the pulmonary semilunar valve? -ANSWER The pulmonary
semilunar valve opens during right ventricular contraction to allow blood to enter the
pulmonary circuit.
What is the mitral valve? -ANSWER The mitral valve, also known as the bicuspid valve,
is located between the left atrium and left ventricle and prevents backflow during
ventricular contraction.
What does the aortic semilunar valve do? -ANSWER The aortic semilunar valve opens
during ventricular contraction to allow blood to move into systemic circulation.
What vessels drain blood into the right atrium? -ANSWER The superior vena cava,
inferior vena cava, and coronary sinus drain blood into the right atrium.
What happens to blood in the pulmonary capillaries? -ANSWER Oxygen diffuses into
the blood and carbon dioxide diffuses out to be exhaled.
How does oxygenated blood return to the heart? -ANSWER Oxygenated blood returns
to the heart through the pulmonary veins into the left atrium.
What is the pathway of blood from the left atrium to systemic circulation? -ANSWER
Blood flows from the left atrium to the left ventricle, then is pushed into systemic
circulation through the aortic valve.
What are the branches of the aorta? -ANSWER The aorta branches into the ascending
aorta, aortic arch, descending aorta, and abdominal aorta.
What is the role of arteries in the circulatory system? -ANSWER Arteries carry
oxygenated blood away from the heart to tissues.
How do veins function in the circulatory system? -ANSWER Veins return deoxygenated
blood back to the heart, often following similar pathways as arteries.
What is the significance of the brachiocephalic trunk? -ANSWER The brachiocephalic
trunk branches off the aortic arch to supply blood to the right arm and the right side of
the head and neck.
Anatomy, Blood Flow, and Myocardial
Infarction With Detailed Questions
And Correct Answers||Latest Exam
2026-2027||Already Graded A+
What is the primary function of the heart? -ANSWER The heart is the muscular pump
that moves blood through the pulmonary circuit for oxygenation and out to peripheral
tissues.
How many times does the heart beat in a day? -ANSWER The heart beats roughly
100,000 times each day.
What is autorhythmicity in the context of the heart? -ANSWER Autorhythmicity refers to
the heart's ability to generate its own action potentials to contract without external input.
How much blood does the heart move daily? -ANSWER The heart moves
approximately 3,600 gallons of blood through the body each day.
What is the average resting heart rate for adults? -ANSWER The average resting heart
rate for adults is 60-100 beats per minute.
What is the average resting heart rate for children? -ANSWER The average resting
heart rate for children is 80-205 beats per minute, depending on age.
What is the size and location of the heart? -ANSWER The heart is about the size of a
closed fist and is located in the pericardial cavity of the mediastinum, between the
lungs.
What are the four chambers of the heart? -ANSWER The four chambers are the right
atrium, left atrium, right ventricle, and left ventricle.
What is the function of the right atrium? -ANSWER The right atrium receives
deoxygenated blood from the venous system.
What is the function of the left atrium? -ANSWER The left atrium receives oxygenated
blood from the pulmonary circuit.
What is the role of the right ventricle? -ANSWER The right ventricle pumps blood to the
pulmonary circuit for oxygenation.
, What does the left ventricle do? -ANSWER The left ventricle pumps oxygenated blood
into systemic arterial circulation.
What are the heart valves and their purpose? -ANSWER The heart has four valves that
prevent backflow and allow movement of blood through the chambers.
What is the tricuspid valve? -ANSWER The tricuspid valve is located between the right
atrium and right ventricle and prevents backflow during ventricular contraction.
What is the function of the pulmonary semilunar valve? -ANSWER The pulmonary
semilunar valve opens during right ventricular contraction to allow blood to enter the
pulmonary circuit.
What is the mitral valve? -ANSWER The mitral valve, also known as the bicuspid valve,
is located between the left atrium and left ventricle and prevents backflow during
ventricular contraction.
What does the aortic semilunar valve do? -ANSWER The aortic semilunar valve opens
during ventricular contraction to allow blood to move into systemic circulation.
What vessels drain blood into the right atrium? -ANSWER The superior vena cava,
inferior vena cava, and coronary sinus drain blood into the right atrium.
What happens to blood in the pulmonary capillaries? -ANSWER Oxygen diffuses into
the blood and carbon dioxide diffuses out to be exhaled.
How does oxygenated blood return to the heart? -ANSWER Oxygenated blood returns
to the heart through the pulmonary veins into the left atrium.
What is the pathway of blood from the left atrium to systemic circulation? -ANSWER
Blood flows from the left atrium to the left ventricle, then is pushed into systemic
circulation through the aortic valve.
What are the branches of the aorta? -ANSWER The aorta branches into the ascending
aorta, aortic arch, descending aorta, and abdominal aorta.
What is the role of arteries in the circulatory system? -ANSWER Arteries carry
oxygenated blood away from the heart to tissues.
How do veins function in the circulatory system? -ANSWER Veins return deoxygenated
blood back to the heart, often following similar pathways as arteries.
What is the significance of the brachiocephalic trunk? -ANSWER The brachiocephalic
trunk branches off the aortic arch to supply blood to the right arm and the right side of
the head and neck.
