QUESTIONS AND ANSWERS ON
CIRCULATORY SYSTEM 100% FOR A
STUDENTS.
What is the main function of the circulatory system?
The main function of the circulatory system is to transport oxygen,
nutrients, and hormones to cells and remove waste products like
carbon dioxide and toxins.
Which organ is responsible for pumping blood throughout the body?
The heart is responsible for pumping blood throughout the body.
What are the three main types of blood vessels in the circulatory
system?
The three main types of blood vessels are arteries, veins, and
capillaries.
Which type of blood vessel carries oxygen-rich blood away from the
heart?
Arteries carry oxygen-rich blood away from the heart.
Which chamber of the heart pumps oxygenated blood to the rest of the
body?
The left ventricle pumps oxygenated blood to the rest of the body.
What is the largest artery in the human body?
The aorta is the largest artery in the human body.
What is the primary function of red blood cells?
The primary function of red blood cells is to transport oxygen
throughout the body.
,Which protein in red blood cells binds to oxygen for transport?
Hemoglobin is the protein in red blood cells that binds to oxygen for
transport.
What component of blood helps in clotting to prevent excessive
bleeding?
Platelets help in clotting to prevent excessive bleeding.
Which blood vessels have thin walls that allow for the exchange of
gases and nutrients?
Capillaries have thin walls that allow for the exchange of gases and
nutrients.
Which part of the heart receives oxygen-poor blood from the body?
The right atrium receives oxygen-poor blood from the body.
Which part of the heart pumps deoxygenated blood to the lungs?
The right ventricle pumps deoxygenated blood to the lungs.
What is the name of the circulation loop that carries blood between the
heart and the lungs?
Pulmonary circulation carries blood between the heart and the lungs.
What is the circulation loop that carries oxygen-rich blood to the body
and returns oxygen-poor blood to the heart?
Systemic circulation carries oxygen-rich blood to the body and returns
oxygen-poor blood to the heart.
What is the liquid portion of blood called?
Plasma is the liquid portion of blood.
Which blood vessels contain valves to prevent the backflow of blood?
Veins contain valves to prevent the backflow of blood.
, What is the normal resting heart rate for an average adult?
The normal resting heart rate for an average adult is between 60 and
100 beats per minute.
What is the condition called when blood flow to the heart muscle is
blocked?
A heart attack occurs when blood flow to the heart muscle is blocked.
What is the medical term for high blood pressure?
Hypertension is the medical term for high blood pressure.
What structure separates the left and right sides of the heart?
The septum separates the left and right sides of the heart.
What is the term for the force exerted by circulating blood on the walls
of blood vessels?
Blood pressure is the force exerted by circulating blood on the walls of
blood vessels.
What type of blood cells help fight infections and diseases?
White blood cells help fight infections and diseases.
What is the name of the small blood vessels that connect arteries to
veins?
Capillaries connect arteries to veins.
What part of the brain regulates heart rate?
The medulla oblongata regulates heart rate.
Which organ removes old or damaged red blood cells from circulation?
The spleen removes old or damaged red blood cells from circulation.
Which major vein returns blood from the lower body to the heart?
The inferior vena cava returns blood from the lower body to the heart.
CIRCULATORY SYSTEM 100% FOR A
STUDENTS.
What is the main function of the circulatory system?
The main function of the circulatory system is to transport oxygen,
nutrients, and hormones to cells and remove waste products like
carbon dioxide and toxins.
Which organ is responsible for pumping blood throughout the body?
The heart is responsible for pumping blood throughout the body.
What are the three main types of blood vessels in the circulatory
system?
The three main types of blood vessels are arteries, veins, and
capillaries.
Which type of blood vessel carries oxygen-rich blood away from the
heart?
Arteries carry oxygen-rich blood away from the heart.
Which chamber of the heart pumps oxygenated blood to the rest of the
body?
The left ventricle pumps oxygenated blood to the rest of the body.
What is the largest artery in the human body?
The aorta is the largest artery in the human body.
What is the primary function of red blood cells?
The primary function of red blood cells is to transport oxygen
throughout the body.
,Which protein in red blood cells binds to oxygen for transport?
Hemoglobin is the protein in red blood cells that binds to oxygen for
transport.
What component of blood helps in clotting to prevent excessive
bleeding?
Platelets help in clotting to prevent excessive bleeding.
Which blood vessels have thin walls that allow for the exchange of
gases and nutrients?
Capillaries have thin walls that allow for the exchange of gases and
nutrients.
Which part of the heart receives oxygen-poor blood from the body?
The right atrium receives oxygen-poor blood from the body.
Which part of the heart pumps deoxygenated blood to the lungs?
The right ventricle pumps deoxygenated blood to the lungs.
What is the name of the circulation loop that carries blood between the
heart and the lungs?
Pulmonary circulation carries blood between the heart and the lungs.
What is the circulation loop that carries oxygen-rich blood to the body
and returns oxygen-poor blood to the heart?
Systemic circulation carries oxygen-rich blood to the body and returns
oxygen-poor blood to the heart.
What is the liquid portion of blood called?
Plasma is the liquid portion of blood.
Which blood vessels contain valves to prevent the backflow of blood?
Veins contain valves to prevent the backflow of blood.
, What is the normal resting heart rate for an average adult?
The normal resting heart rate for an average adult is between 60 and
100 beats per minute.
What is the condition called when blood flow to the heart muscle is
blocked?
A heart attack occurs when blood flow to the heart muscle is blocked.
What is the medical term for high blood pressure?
Hypertension is the medical term for high blood pressure.
What structure separates the left and right sides of the heart?
The septum separates the left and right sides of the heart.
What is the term for the force exerted by circulating blood on the walls
of blood vessels?
Blood pressure is the force exerted by circulating blood on the walls of
blood vessels.
What type of blood cells help fight infections and diseases?
White blood cells help fight infections and diseases.
What is the name of the small blood vessels that connect arteries to
veins?
Capillaries connect arteries to veins.
What part of the brain regulates heart rate?
The medulla oblongata regulates heart rate.
Which organ removes old or damaged red blood cells from circulation?
The spleen removes old or damaged red blood cells from circulation.
Which major vein returns blood from the lower body to the heart?
The inferior vena cava returns blood from the lower body to the heart.
