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This set of Biology Multiple Choice Questions & Answers (MCQs) focuses on Body fluids and Circulation Set 2
Q1 | Pace maker is
- Instrument for measuring heart beat
- Instrument for measuring pulse rate
- Auriculo - ventricular node that provides impulse for heart beat
- Sino - auricular node that provides impulse for heartbeat
Q2 | Which has the thickest walls ?
- Left ventricle
- Right ventricle
- Left auricle
- Right auricle
Q3 | Prothrombin required for blood clotting is produced in
- Stomach
- Liver
- Spleen
- Pancreas
Q4 | Contraction of right ventricle pumps blood into
- Dorsal aorta
- Pulmonary artery
- Pulmonary vein
- Coronary artery
Q5 | Dub sound is produced during closure of
- Semilunar valves
- Bicuspid valve
- Tricuspid valve
- Both a & b
Q6 | In circulatory system, valves occur in
- Heart and blood vessels of both vertebrates and invertebrates
- Both vertebrate and invertebrate hearts
- Vertebrate heart only
- Invertebrate heart only
Q7 | In blood
- WBCs are more than RBCs
- RBCs are more than WBCs
- RBCs are less than platelets
- Platelets are less than WBCs
Q8 | Pericardial fluid is secreted by
- Myocardium
- Parietal peritoneum
- Visceral peritoneum
- None of the above
Q9 | Pulse pressure is
- Diastolic pressure
- Systolic pressure
- Difference between b and a
- Pressure in great veins
Q10 | Which one are granulocytes
- Neutrophils, basophils, lymphocytes
- Eosinophils, basophils, monocytes
- Basophils, monocytes, lymphocytes
- Neutrophils, eosinophils, basophils
Q11 | Lymph consists of
- RBCs, WBCs and plasma
- RBCs, proteins and platelets
- Alll components of blood except RBCs and some proteins
- WBCs and serum
Q12 | Find the matching pair :
- Lubb- sharp closure of AV valves at beginning of ventricular systole
- Dub - sudden opening of semilunar valves at the beginning of ventricular systole
- Pulsation of radial artery valves in blood vessels
- Initiation of heart beat - Purkinje fibers
Q13 | Valves which allow blood from ventricles into arteries and not in opposite direction are
- Aortic valve and mitral valve
- AV valves and semilunar valves
- Bicuspid and tricuspid valves
- Semilunar valves and tricuspid valve
Q14 | Bundle of His is a network of
- Muscle fibres distributed throughout heart walls
- Muscle fibres found only in ventricle wall
- Nerve fibres distributed in ventricles
- Nerve fibres found throughout the heart
Q15 | Artificial pacemaker is usually implanted to correct the defect in
- AV node
- SA node
- Purkinje fibers
- Mitral valve
Q16 | Pulmonary vein carries oxygenated blood from
- Heart to its walls
- Heart to lungs
- Lungs to heart
- Heart to all body parts
Q17 | The sequence of cardiac cycle is
- Atrial systole - ventricular systole - joint diastole
- Atrial diastole - Atrial systole - ventricular diastole
- Atrial systole - ventricular diastole - ventricular systole
- ventricular diastole - ventricular systole - Atrial systole
Q18 | The blood returning to the heart from lungs via pulmonary vein has more
- RBC per ml of blood
- Haemoglobin per ml of blood
- Oxygen per ml of blood
- Nutrient per ml of blood
Q19 | Systemic heart refers to
- The two ventricles together in humans
- The heart that contracts under stimulation from nervous system
- Left auricle and left ventricle in higher ventebrates
- Entire heart in lower vertebrates
Q20 | In the heart of mammals the bicuspid valve is situated between
- Left auricle and left ventricle
- Post caval and right caval
- Right auricle and left auricle
- Right ventricle and pulmonary aorta
Q21 | The auriculo ventricular node in human heart was discovered by
- Hiss
- Lewis
- Ringer
- William Harvey
Q22 | The beating of heart of man is heard on the left side because
- The left ventricle is toward the left side
- Both the ventricles are towards the left side
- Entire heart is on the left side
- The aorta is on the left side
Q23 | Purkinje’s fibres are special types of
- Muscle fibres located in heart
- Nerve fibres located in cerebrum
- Connective tissue fibers joining one bone to another bone
- Sensory fibers extending from retina into optic nerve
Q24 | The pericardium and the pericardial fluid help in
- Protecting the heart from friction, shocks and keeps it moist
- Pumping the blood
- Receiving the blood from various parts of the body
- None of the above
Q25 | For reaching left side of heart, blood must pass through
- Liver
- Kidneys
- Lungs
- Brain