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WorksheetsCardiovascular System Quiz
Total questions: 45
Worksheet time: 23mins
What is the primary function of the CV system mentioned in the learning material?
To digest food
To pump blood throughout the body
To regulate body temperature
To resist infection
Which of the following is NOT a function of the CV system?
Transporting gases, nutrients, and waste
Thermoregulation
Resisting infection
Producing hormones
What is the average adult core temperature for thermoregulation?
35 degrees
36 degrees
37 degrees
38 degrees
Which cells in the blood are responsible for detecting foreign bodies or infections?
Red blood cells
Platelets
Endocrine glands
White blood cells
Which of the following is responsible for clotting the blood?
Red blood cells
White blood cells
Platelets
Sweat glands
What are the atria of the heart responsible for?
Pumping blood into the systemic circulation
Pumping blood into the pulmonary system
Receiving blood into the heart
Filtering blood before it enters the heart
What is the function of the septum in the heart?
It controls the blood flow through the heart.
It separates the right and left sides of the heart.
It pumps blood out of the heart.
It supplies blood to the heart itself.
How do the valves in the heart function?
They supply oxygen to the heart muscle.
They generate the heartbeat.
They open and close to allow blood flow through.
They connect the heart to the lungs.
Which side of the heart pumps oxygen-rich blood to the entire body?
Right side
Left side
Both sides
Neither side
Which side of the heart receives oxygen-poor blood and pumps it to the lungs to be re-oxygenated?
Right side
Left side
Both sides
Neither side
What is the valve called that is located between the right atrium and the right ventricle?
Pulmonary valve
Aortic valve
Tricuspid valve
Mitral valve
Which of the following carries oxygenated blood from the lungs to the heart?
Pulmonary artery
Aorta
Inferior vena cavae
Pulmonary vein
Which chamber of the heart pumps deoxygenated blood to the lungs?
Left atrium
Right atrium
Left ventricle
Right ventricle
What is the name of the large blood vessel that carries blood away from the heart to the rest of the body?
Pulmonary artery
Aorta
Pulmonary vein
Superior vena cavae
What does Heart Rate (HR) refer to?
The volume of blood pumped out of the left ventricle of the heart in one beat.
The highest number of beats per minute your heart can pump when under stress.
The volume of blood pumped around the body in one minute.
The number of times your heart beats, or contracts per minute.
What is Maximum Heart Rate (MHR)?
The volume of blood pumped out of the left ventricle of the heart in one beat.
The number of times your heart beats, or contracts per minute.
The highest number of beats per minute your heart can pump when under stress.
The volume of blood pumped around the body in one minute.
Stroke Volume (SV) is defined as:
The number of times your heart beats, or contracts per minute.
The highest number of beats per minute your heart can pump when under stress.
The volume of blood pumped around the body in one minute.
The volume of blood pumped out of the left ventricle of the heart in one beat.
Cardiac Output (Q) is the:
Number of times your heart beats, or contracts per minute.
Highest number of beats per minute your heart can pump when under stress.
Volume of blood pumped out of the left ventricle of the heart in one beat.
Volume of blood pumped around the body in one minute.
Where is the blood pumped to from the right ventricle?
To the left atrium
To the aorta
To the lungs
To the arteries
What exchange occurs in the blood within the lungs?
Blood gives up nutrients and takes up wastes
Blood gives up oxygen and takes up carbon dioxide
Blood gives up carbon dioxide and takes up oxygen
Blood gives up heat and takes up carbon dioxide
Where does oxygenated blood return after being oxygenated in the lungs?
Right atrium
Right ventricle
Left atrium
Left ventricle
What is the role of veins in the circulatory system?
They carry oxygen-rich blood to the heart
They carry blood away from the heart
They exchange gases with the lungs
They return blood to the right atrium
What is the function of arteries?
Transfer oxygen, nutrients, and wastes between arteries and veins.
Carry deoxygenated blood from the body to the heart.
Carry oxygenated blood away from the heart.
Have one-way valves to prevent blood from running back the wrong way.
What is the structure of capillaries?
Arteries are muscular and are the strongest and largest blood vessels.
Veins have one-way valves, instead of muscles to prevent blood from running back the wrong way.
Tiny vessels that connect arteries and veins.
Arteries divide like tree branches until they are slender.
Which vessels have one-way valves to prevent blood from running back the wrong way?
Arteries
Capillaries
Veins
Venules
What is the main function of capillaries?
Carry deoxygenated blood from the body to the heart.
Carry oxygenated blood away from the heart.
Transfer oxygen, nutrients, and wastes between arteries and veins.
Have one-way valves to prevent blood from running back the wrong way.
How are arteries structured compared to other blood vessels?
They are tiny vessels that connect arteries and veins.
They have one-way valves, instead of muscles.
They are muscular and are the strongest and largest blood vessels.
They carry deoxygenated blood from the body to the heart.
What happens to the blood vessels that supply the working muscles when we begin to exercise?
They vasoconstrict
They vasodilate
They stop functioning
They become impermeable
What is the effect on blood vessels to less active organs such as the liver and kidneys during exercise?
They vasodilate
They vasoconstrict
They expand indefinitely
They rupture
Why does the body prioritize blood flow to working muscles during exercise?
To deliver nutrients
To deliver oxygen
To remove carbon dioxide
To cool down the muscles
What happens to heart rate when an individual begins exercise?
It decreases as a response to the extra energy required by the body.
It remains constant regardless of exercise.
It increases as a response to the extra energy required by the body.
It increases only after the exercise is completed.
At what point does stroke volume plateau during exercise?
At around 50-55% of max HR.
At around 65-70% of max HR.
At around 75-80% of max HR.
It does not plateau during exercise.
What is the trend of cardiac output during exercise?
It decreases as heart rate increases.
It remains constant throughout the exercise.
It increases and will continue to increase if heart rate continues to increase.
It increases only during the initial phase of exercise.
What happens to A-VO2 difference during exercise?
It decreases as working muscles require less oxygen.
It remains the same as at rest.
It increases as working muscles extract more oxygen from the blood.
It increases as working muscles extract less oxygen from the blood.
How does blood flow distribution change during exercise?
The body reduces blood flow to the working muscles.
The body starts to prioritize blood flow to the skeletal muscles.
The body distributes blood flow equally to all muscles.
The body stops blood flow to non-essential organs only.
What are the coronary arteries responsible for?
Regulating heart rate
Supplying blood to the brain
Supplying blood to the heart muscle
Transporting waste from the heart
What can happen when the coronary arteries become blocked by fatty deposits?
Increased blood flow to the heart
A decrease in heart rate
A heart attack
Improved oxygen supply to the heart
How many chamber walls of the heart do the coronary arteries feed with nutrients?
Two
Three
Four
One
What is the muscle pump effect?
The process by which the heart pumps blood through the body
The effect the skeletal muscles have on blood flow in the veins as they contract and squeeze against the veins, forcing blood to travel towards the heart
The movement of blood through the arteries during physical exercise
The relaxation of muscles after intense activity
Why can blood not flow backwards in the veins during the muscle pump effect?
Because the blood pressure is too low
Because the arteries prevent it
Because the valves in the veins close, preventing backflow
Because the blood is too thick to move backwards
What happens to the veins when the muscles contract?
The veins expand and allow more blood to flow through
The veins are compressed and blood flow is stopped
The veins are squeezed, forcing blood towards the heart
The veins rupture due to the increased pressure
What is the primary function of Red Blood Cells?
To fight infection
To carry oxygen to body tissues and muscles
To help form blood clots to stop bleeding
To carry nutrients
What percentage of Plasma is water?
50%
75%
90%
100%
Which component of blood contains haemoglobin?
White Blood Cells
Platelets
Plasma
Red Blood Cells
What causes the blood vessels to dilate and radiate heat towards the skin surface during exercise?
The decrease in body temperature
The increase in body temperature
The decrease in blood flow
The increase in blood pressure
