Cardiovascular System Quiz Exam: Trivia!

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Cardiovascular System Quiz Exam: Trivia! - Quiz


Do you know anything about the cardiovascular system? The cardiovascular system is an organ system that allows blood to circulate and carry oxygen and nutrients to the body. The cardiovascular system of the blood is seen as having two components. These include a systematic circulation and a pulmonary circulation. There are many jobs of this working system that helps to keep us alive. You may be studying for a test and need this quiz to practice. All the best.


Questions and Answers
  • 1. 

    Which type of blood is bright red?

    • A.

      Arterial

    • B.

      Venous

    Correct Answer
    A. Arterial
    Explanation
    Arterial blood is bright red because it is oxygenated blood that is being pumped out from the heart to the rest of the body through the arteries. Oxygen-rich blood gives it a bright red color. In contrast, venous blood is darker red because it has already delivered oxygen to the body's tissues and is returning to the heart through the veins.

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  • 2. 

    Which layer of the heart makes up the bulk of the heart wall and is responsible for the contraction of the heart? 

    • A.

      Endocardium

    • B.

      Pericardium

    • C.

      Myocardium

    Correct Answer
    C. Myocardium
    Explanation
    The myocardium is the correct answer because it is the layer of the heart that makes up the bulk of the heart wall and is responsible for the contraction of the heart. It is composed of cardiac muscle tissue, which contracts and relaxes to pump blood throughout the body. The myocardium is essential for maintaining the heart's function and ensuring proper circulation of blood. The endocardium is the innermost layer of the heart, while the pericardium is the outermost layer that surrounds and protects the heart.

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  • 3. 

    Which blood vessel returns oxygenated blood to the left atrium?

    • A.

      Aorta

    • B.

      Vena Cava

    • C.

      Pulmonary artery

    • D.

      Pulmonary vein

    Correct Answer
    D. Pulmonary vein
    Explanation
    The pulmonary vein is the correct answer because it is the blood vessel that carries oxygenated blood from the lungs back to the left atrium of the heart. After oxygen is exchanged in the lungs, the blood becomes oxygenated and is then transported back to the heart through the pulmonary veins.

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  • 4. 

    Which layer of the heart is a protective sac, which contains serous fluid to reduce friction?

    • A.

      Pericardium

    • B.

      Myocardium

    • C.

      Endocardium

    Correct Answer
    A. Pericardium
    Explanation
    The pericardium is the protective sac surrounding the heart. It contains serous fluid, which acts as a lubricant, reducing friction between the heart and surrounding structures during its pumping action. The pericardium also helps to maintain the position of the heart within the chest cavity and provides a barrier against infection and inflammation. The myocardium, on the other hand, is the muscular layer of the heart responsible for its contractions, while the endocardium is the innermost layer that lines the chambers of the heart.

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  • 5. 

    What is the average heart rate in a male?

    • A.

      60 bpm

    • B.

      65 bpm

    • C.

      70 bpm

    • D.

      75 bpm

    Correct Answer
    C. 70 bpm
    Explanation
    The average heart rate in a male is typically around 70 beats per minute (bpm). This value may vary depending on factors such as age, fitness level, and overall health. However, 70 bpm is considered a normal resting heart rate for adult males.

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  • 6. 

    What is the average heart rate of a female?

    • A.

      60 bpm

    • B.

      65 bpm

    • C.

      70 bpm

    • D.

      75 bpm

    Correct Answer
    D. 75 bpm
  • 7. 

    Which pathology relates to the heart rate being less than 50 beats per minute?

    • A.

      Angina

    • B.

      Bradycardia

    • C.

      Tachycardia

    • D.

      Palpitations

    Correct Answer
    B. Bradycardia
    Explanation
    Bradycardia is a condition characterized by a heart rate that is less than 50 beats per minute. This condition can be caused by various factors such as certain medications, heart diseases, electrolyte imbalances, and abnormalities in the heart's electrical system. Symptoms of bradycardia may include fatigue, dizziness, shortness of breath, and fainting. Treatment options depend on the underlying cause and severity of the condition, and may include medications, pacemaker implantation, or lifestyle changes.

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  • 8. 

    In which pathology is the hemoglobin level of blood lower than normal?

    • A.

      Anaemia

    • B.

      Angina

    • C.

      Clotting disorder

    • D.

      Phlebitis

    Correct Answer
    A. Anaemia
    Explanation
    Anaemia is a condition characterized by a lower than normal level of hemoglobin in the blood. Hemoglobin is responsible for carrying oxygen to the body's tissues, and a decrease in its levels can lead to symptoms such as fatigue, weakness, and shortness of breath. Therefore, anaemia is the correct answer as it directly relates to the given question about the pathology with lower hemoglobin levels in the blood.

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  • 9. 

    Which pathology is caused by insufficient blood to the heart muscle, and can result in pain to the left side of the chest and usually radiating to the left arm, usually on exertion or excitement?

    • A.

      Anaemia

    • B.

      Palpitations

    • C.

      Sickle-cell anaemia

    • D.

      Angina

    Correct Answer
    D. Angina
    Explanation
    Angina is a pathology caused by insufficient blood supply to the heart muscle. It typically results in pain on the left side of the chest, which may radiate to the left arm. This pain is usually triggered by physical exertion or emotional excitement. Anaemia is a condition characterized by a decrease in the number of red blood cells or hemoglobin in the blood. Palpitations refer to an abnormal awareness of the heartbeat. Sickle-cell anaemia is a genetic disorder affecting red blood cells. Therefore, the correct answer is Angina.

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  • 10. 

    Which pathology is an inflammation of the wall of a vein?

    • A.

      Anaemia

    • B.

      Phlebitis

    • C.

      Deep vein thrombosis

    • D.

      Epitaxis

    Correct Answer
    B. Phlebitis
    Explanation
    Phlebitis is the correct answer because it refers to the inflammation of the wall of a vein. Anaemia is a condition characterized by a decrease in the number of red blood cells or hemoglobin in the blood. Deep vein thrombosis is the formation of a blood clot in a deep vein, while epitaxis refers to nosebleeds. Therefore, phlebitis is the only option that directly relates to inflammation of the vein wall.

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  • 11. 

    Which blood vessel allows for the passage of nutrients and waste products between the blood and tissue cells?

    • A.

      Artery

    • B.

      Vein

    • C.

      Capillary

    Correct Answer
    C. Capillary
    Explanation
    Capillaries are the smallest blood vessels in the body and have thin walls, allowing for the exchange of nutrients and waste products between the blood and tissue cells. They connect arteries and veins, and their small size and large surface area enable efficient diffusion of substances such as oxygen, carbon dioxide, glucose, and waste products like urea. Capillaries play a crucial role in delivering oxygen and nutrients to the cells and removing waste products from them.

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  • 12. 

    Which type of blood cell has the function of carrying oxygen to body cells?

    • A.

      Erythrocyte

    • B.

      Leucocyte

    • C.

      Thrombocyte

    Correct Answer
    A. Erythrocyte
    Explanation
    Erythrocytes, also known as red blood cells, are responsible for carrying oxygen to body cells. These cells contain a protein called hemoglobin, which binds to oxygen in the lungs and transports it to tissues throughout the body. Erythrocytes are specialized for oxygen transport and do not have a nucleus, allowing for more space to carry hemoglobin. Leucocytes, or white blood cells, are involved in the immune response and Thrombocytes, or platelets, are responsible for blood clotting.

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  • 13. 

    Which type of blood cell plays a role in clotting?

    • A.

      Erythrocyte

    • B.

      Leucocyte

    • C.

      Thrombocyte

    Correct Answer
    C. Thrombocyte
    Explanation
    Thrombocytes, also known as platelets, are the type of blood cells that play a crucial role in clotting. When there is an injury or damage to a blood vessel, thrombocytes are activated and form a plug at the site of injury, preventing excessive bleeding. They also release clotting factors that initiate a cascade of reactions leading to the formation of a blood clot. Therefore, thrombocytes are essential for the body's ability to stop bleeding and promote wound healing.

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  • 14. 

    Which type of blood cell destroys disease causing micro-organisms and ingests bacteria and dead matter?

    • A.

      Erythrocyte

    • B.

      Leucocyte

    • C.

      Thrombocyte

    Correct Answer
    B. Leucocyte
    Explanation
    Leucocytes, also known as white blood cells, are responsible for destroying disease-causing microorganisms and ingesting bacteria and dead matter. They play a vital role in the immune system by identifying and eliminating harmful pathogens, helping to keep the body healthy and free from infections. Erythrocytes, or red blood cells, are responsible for carrying oxygen to the body's tissues, while thrombocytes, or platelets, help in blood clotting.

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  • 15. 

    A function of the cardiovascular system is to maintain fluid pressure.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The cardiovascular system is responsible for maintaining fluid pressure in the body. This is achieved through the pumping action of the heart, which ensures that blood is circulated throughout the body at a certain pressure. The blood vessels, such as arteries and veins, also play a role in regulating fluid pressure by constricting or dilating to control blood flow. Overall, the cardiovascular system's function of maintaining fluid pressure is crucial for the proper functioning of the body's organs and tissues.

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  • 16. 

    Which valve is located between the left ventricle and the aorta?

    • A.

      Tricuspid

    • B.

      Bicuspid

    • C.

      Aortic

    • D.

      Pulmonary

    Correct Answer
    C. Aortic
    Explanation
    The valve located between the left ventricle and the aorta is called the aortic valve. This valve prevents the backflow of blood from the aorta into the left ventricle during the relaxation phase of the heart. It opens to allow blood to be pumped out of the left ventricle and into the aorta, which then distributes oxygenated blood to the rest of the body.

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  • 17. 

    Which valve is found between the pulmonary artery and the right ventricle?

    • A.

      Tricuspid

    • B.

      Bicuspid

    • C.

      Pulmonary

    • D.

      Aortic

    Correct Answer
    C. Pulmonary
    Explanation
    The pulmonary valve is found between the pulmonary artery and the right ventricle. This valve controls the flow of blood from the right ventricle into the pulmonary artery, which carries oxygen-depleted blood to the lungs for oxygenation. The pulmonary valve prevents the backflow of blood into the right ventricle and ensures that blood flows in one direction, from the heart to the lungs.

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  • 18. 

    Which valve is found between the right atrium and the right ventricle?

    • A.

      Tricuspid

    • B.

      Bicuspid

    • C.

      Aortic

    • D.

      Pulmonary

    Correct Answer
    A. Tricuspid
    Explanation
    The valve found between the right atrium and the right ventricle is called the tricuspid valve. This valve has three cusps or flaps that open and close to regulate the flow of blood from the atrium to the ventricle. It prevents the backflow of blood into the atrium when the ventricle contracts and pumps blood out of the heart. The tricuspid valve is essential for maintaining the proper direction of blood flow within the heart.

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  • 19. 

    Which valve is found between the left atrium and the left ventricle?

    • A.

      Tricuspid

    • B.

      Bicuspid

    • C.

      Aortic

    • D.

      Pulmonary

    Correct Answer
    B. Bicuspid
    Explanation
    The bicuspid valve, also known as the mitral valve, is found between the left atrium and the left ventricle of the heart. It consists of two cusps or flaps that open and close to regulate the flow of blood from the atrium to the ventricle. When the left atrium contracts, the bicuspid valve opens, allowing blood to flow into the left ventricle. When the left ventricle contracts, the valve closes to prevent backflow of blood into the atrium. This valve plays a crucial role in maintaining the one-way flow of blood through the heart.

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  • 20. 

    The 'mitral' valve is another name for which valve?

    • A.

      Tricuspid

    • B.

      Biscuspid

    • C.

      Aortic

    • D.

      Pulmonary

    Correct Answer
    B. Biscuspid
    Explanation
    The correct answer is Biscuspid. The mitral valve is also known as the bicuspid valve. It is located between the left atrium and the left ventricle in the heart. It has two cusps or flaps that open and close to regulate blood flow from the atrium to the ventricle. The mitral valve plays a crucial role in preventing the backflow of blood and ensuring proper circulation within the heart.

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  • 21. 

    The largest circulatory system which carries oxygnated blood from the left ventricle and through the aorta to the body, is referred to as what type of circulation?

    • A.

      Systemic

    • B.

      Pulmonary

    • C.

      Coronary

    • D.

      Hepatic

    Correct Answer
    A. Systemic
    Explanation
    Systemic circulation refers to the largest circulatory system in the body that carries oxygenated blood from the left ventricle of the heart through the aorta and distributes it to the entire body. This circulation supplies oxygen and nutrients to the body's tissues and organs, while also removing waste products. Pulmonary circulation, on the other hand, is responsible for carrying deoxygenated blood from the right ventricle to the lungs to be oxygenated. Coronary circulation supplies blood to the heart muscle itself, and hepatic circulation is specific to the liver.

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  • 22. 

    In which type of pathology do the valves inside of the veins lose their strength?

    • A.

      Phlebitis

    • B.

      Deep vein thrombosis

    • C.

      Epitaxis

    • D.

      Varicose veins

    Correct Answer
    D. Varicose veins
    Explanation
    Varicose veins occur when the valves inside the veins lose their strength, leading to the pooling of blood and the enlargement and twisting of the veins. This condition is commonly seen in the legs and can cause discomfort, pain, and swelling. Factors such as age, genetics, pregnancy, and prolonged standing or sitting can contribute to the weakening of the vein walls and valves. Treatment options for varicose veins include lifestyle changes, compression stockings, and in severe cases, surgical interventions.

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  • 23. 

    Arteries have thinner walls than veins.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Arteries need thicker walls to withstand pressure.

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  • 24. 

    The pulmonary arteries carry oxygenated blood away from the heart to the lungs.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    This blood is deoxygentated.

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  • 25. 

    A healthy and average blood pressure should be 120/80 mmHg.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    A healthy blood pressure is typically considered to be around 120/80 mmHg. This is because the first number (systolic pressure) represents the pressure in the arteries when the heart beats, and the second number (diastolic pressure) represents the pressure in the arteries when the heart is at rest between beats. A blood pressure reading of 120/80 mmHg indicates that the individual has a normal blood pressure, which is considered to be healthy.

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  • 26. 

    A pulmonary embolism is caused by a blood clot being carried into the lungs where it blocks the flow of blood to the pulmonary tissues.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    A pulmonary embolism occurs when a blood clot travels through the bloodstream and gets lodged in one of the blood vessels in the lungs. This clot then obstructs the flow of blood to the pulmonary tissues, leading to potentially serious consequences. Therefore, the statement that a pulmonary embolism is caused by a blood clot blocking the flow of blood to the pulmonary tissues is true.

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  • 27. 

    Gangrene is a serious and often life-threatening condition where the body’s tissue begins to decay and die as a result of an interruption in the blood supply.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Gangrene is indeed a serious and potentially fatal condition that occurs when there is a disruption in the blood supply to the body's tissue. This interruption in blood flow leads to tissue decay and death. It is crucial to seek immediate medical attention if gangrene is suspected, as prompt treatment is necessary to prevent further complications and potentially save a person's life.

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  • 28. 

    In this pathology, there is a blockage in the flow of bood to the brain in a cerebral blood vessel through a blood clot (embolus).

    • A.

      Angina

    • B.

      Stroke

    • C.

      Gangrene

    • D.

      Tachycardia

    Correct Answer
    B. Stroke
    Explanation
    A stroke occurs when there is a blockage in the flow of blood to the brain through a cerebral blood vessel, usually caused by a blood clot. This blockage prevents oxygen and nutrients from reaching the brain, leading to the death of brain cells. Symptoms of a stroke can include sudden weakness or numbness on one side of the body, difficulty speaking or understanding speech, and loss of coordination. Prompt medical attention is crucial in order to minimize brain damage and improve chances of recovery.

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  • 29. 

    Granulocytes makes up about 75% of our white blood cells and can be further divided into 3 categories, which are:

    • A.

      Neutrophils, eosinophils & basophils

    • B.

      Macrophages & moncytes

    Correct Answer
    A. Neutrophils, eosinophils & basophils
    Explanation
    Granulocytes are a type of white blood cell that contain granules in their cytoplasm. They play a crucial role in the immune system's response to infection and inflammation. Neutrophils are the most abundant type of granulocyte and are responsible for phagocytosis of bacteria. Eosinophils are involved in allergic reactions and defense against parasites. Basophils release histamine and other chemicals in response to allergens. Macrophages and monocytes, on the other hand, are not granulocytes but are also important components of the immune system, involved in phagocytosis and antigen presentation.

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  • 30. 

    In which pathology are abnormally shaped red blood cells produced?

    • A.

      Anaemia

    • B.

      Angina

    • C.

      Sickle cell anaemia

    • D.

      Clotting disorder

    Correct Answer
    C. Sickle cell anaemia
    Explanation
    Sickle cell anemia is a genetic disorder that causes abnormally shaped red blood cells. In this condition, the red blood cells are crescent-shaped instead of the normal round shape. These abnormal cells can get stuck in blood vessels, leading to blockages and reduced blood flow. This can cause various complications, including pain, organ damage, and an increased risk of infections. Therefore, sickle cell anemia is the correct answer for the question.

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  • 31. 

    When the heart is contracting, this period of time is referred to as ...............

    • A.

      Diastole

    • B.

      Systole

    Correct Answer
    B. Systole
    Explanation
    During systole, the heart muscles contract, pumping blood out of the chambers and into the arteries. This period is characterized by the contraction of the ventricles, which forces blood into the aorta and pulmonary artery. Systole is an essential part of the cardiac cycle and is responsible for delivering oxygenated blood to the body's tissues.

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  • 32. 

    What effect would blood loss have on blood pressure?

    • A.

      Increase

    • B.

      Decrease

    Correct Answer
    B. Decrease
    Explanation
    Blood loss would decrease blood pressure. This is because blood pressure is the force exerted by the blood against the walls of the blood vessels. When blood is lost, there is a decrease in the volume of blood circulating in the body, leading to a decrease in the amount of blood available to exert pressure on the vessel walls. As a result, blood pressure decreases.

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  • 33. 

    What effect would fluid retention have on blood pressure?

    • A.

      Increase

    • B.

      Decrease

    Correct Answer
    A. Increase
    Explanation
    Fluid retention would increase blood pressure because when the body retains excess fluid, it increases the volume of blood in the circulatory system. This increased volume puts extra pressure on the blood vessels, leading to higher blood pressure. Additionally, fluid retention can also lead to increased sodium levels in the body, which further contributes to elevated blood pressure.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

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  • Mar 22, 2023
    Quiz Edited by
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