Quiz  /  Body Fluids and Circulation Class 11 MCQ Questions With Answers

  • 1. 
    Name the blood cells, whose reduction in number can cause clotting disorder, leading to excessive loss of blood from the body.

  • Neutrophils
  • Thrombocytes
  • Erythrocytes
  • Leucocytes

  • 2. 
    Blood pressure in mammalian Aorta is maximum during.

  • Systole of the left ventricle
  • Diastole of the right atrium
  • Systole of the left atrium
  • Diastole of the right ventricle

  • 3. 
    If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially non-functional, what will be the immediate effect?

  • The flow of the blood will be immediate slowed down
  • The 'Pace maker' will stop working
  • The blood tends to flow back into the left atrium
  • The flow of blood into the pulmonary artery will be reduced

  • 4. 
    The heart beat is maximum in.

  • Adult males
  • Foetus
  • Elderly people
  • Adult females

  • 5. 
    Which one of the following statement is correct regarding blood pressure?

  • 130/90 mm Hg is considered high & requires treatment
  • 100/55 mm Hg is considered an ideal blood pressure
  • 105/50 mm Hg makes one very active
  • 190/110 mm Hg may harm vital organs like brain & kidney

  • 6. 
    Blood flow velocity is slowest in the

  • Arteries
  • Arterioles
  • Capillaries
  • Venules

  • 7. 
    During the joint diastole heart receive?

  • Deoxygenated blood
  • Oxygenated blood
  • Venous blood
  • None

  • 8. 
    The phrase "graveyard of RBC" is used for

  • Liver
  • Spleen
  • Bone marrow
  • Heart

  • 9. 
    Standard ECG of a normal person. The P-wave represents the …

  • Contraction of both the atria
  • Initiation of the ventricular contraction
  • Beginning of the systole
  • End of systole

  • 10. 
    The heart rate is maximum in

  • Adult Males
  • Foetus
  • Elderly People
  • Adult Females

  • 11. 
    The human circulatory system is called a double closed circulatory system. What are the 2 parts of the human circulatory system ?

  • The Pulmonary and Ventricular Circulation
  • The Pulmonary and Systemic Circulation
  • The Central and Peripheral Circulation

  • 12. 
    Arteries have __________ and ___________ walls when compared to veins

  • Thicker; stronger
  • Thicker; weaker
  • Thinner; stronger
  • Thinner; weaker

  • 13. 
    What causes a heart attack?

  • Coronary arteries become blocked so the heart tissue cannot receive oxygen and dies off
  • An artery in the brain becomes blocked and caused damage
  • A faulty valve creates back flow in the heart
  • A hole forms in the septum between the ventricles

  • 14. 
    Which ion plays an important role in clotting of blood.

  • sodium
  • magnesium
  • potassium
  • calcium

  • 15. 
    Electrocardiogram is a measure of –

  • Heart rate
  • Ventricular contraction
  • Volume of blood pumped
  • Electrical activity of heart

  • 16. 
    The 'T' wave in the ECG represents

  • atrial depolarization
  • ventricular depolarization
  • repolarization

  • 17. 
    Blood pressure in the pulmonary artery is :- …

  • same as that in the aorta.
  • more than that in the carotid.
  • more than that in the pulmonary vein.
  • less than that in the venae cavae.

  • 18. 
    Open type blood vascular system is found in

  • frog
  • toads
  • cockroach
  • fishes

  • 19. 
    What is interstitial fluid?

  • Fluid in the stomach
  • Fluid that surrounds tissue cells
  • Fluid in the lungs
  • Fluid in the rectum

  • 20. 
    Which one of the following represents the correct path for the transmission of an impulse in the intrinsic conduction system of the heart?

  • AV node, Bundle of His, SA node, Purkinje fibers, bundle branches
  • SA node, AV node, Bundle of His, bundle branches, Purkinje fibers
  • SA node, Bundle of His, AV node, Purkinje fibers, bundle branches
  • SA node, Bundle of His, bundle branches, Purkinje fibers, AV node

  • 21. 
    Heart is covered by

  • peritoneum
  • placenta
  • pleural membrane
  • pericardium

  • 22. 
    First heart sound is

  • Lubb sound at the end of systole
  • Lubb sound at the beginning of ventrical systole
  • Dup sound at the end of systole
  • Dup sound at the beginning of ventrical systole

  • 23. 
    In which of the following situation there is risk of erythroblastosis foetalis ?

  • Mother Rh+, father Rh+
  • Mother Rh-, father Rh-
  • Mother Rh-, father Rh+
  • Mother Rh+, father Rh-

  • 24. 
    Which among the following is correct during each cardiac cycle?

  • The volume of blood pumped out by the Rt and Lt ventricles is same.
  • The volume of blood pumped out by the Rt and Lt ventricles is different
  • The volume of blood received by each atrium is different
  • The volume of blood received by the aorta and pulmonary artery is different

  • 25. 
    "Bundle of His" is a network of

  • Muscle fibres distributed throughout the heart walls
  • Muscle fibres found only on the ventricle wall
  • Nerve fibres distributed in ventricles
  • Nerve fibres found throughout the heart

  • 26. 
    Valves are important in the heart because they...

  • Create the heart beat
  • Are vessels that carry blood
  • Prevent back flow as blood moves through the heart
  • House white blood cells

  • 27. 
    Which phase of the ECG indicates ventricular excitation and contraction?

  • (a) P wave
  • (b) QRS wave
  • (c) T wave
  • (d) XYZ wave
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