RESPIRATORY SYSTEM EXERCISE

1. Skin effect due to pattern of lines is called(1) Physical process (2) Chemical process(3) Physic chemical process (4) none

2. Larynx is a modified portion of(1) Pharynx (2) Trachea(3) Bronchus (4) Lungs

3. Thoracic cavity is enlarged by contraction of(1) Internal Intercostals muscles (2) Diaphragm(3) Lungs (4) All of above

4. Cartilaginous rings in trachea are incomplete at which surface.(1) Dorsal (2) Ventral(3) Lateral (4) Ventrolatera

5. Breathing by ribs is more pronounced in(1) Male (2) Female(3) Pregnant female (4) None

6. The most important muscular structure in respiratory system of rabbit is(1) External intercostal muscles (2) Internal intercostal muscles(3) Diaphragm (4) Vertebral column

7. Wall of alveoli is composed of(1) Simple squamous epithelium (2) Simple cuboidal epithelium(3) Pseudostratified epithelium (4) Simple columnar epithelium

8. Sneiderian membrane occurs on(1) Larynx (2) Nasoturbinals(3) Maxilla turbinals (4) Nasoturbinals

9. "Methemoglobin" refers to(1) A colourless respiratory pigment (2) Oxidized haemoglobin(3) Oxygenated haemoglobin (4) Deoxygeneted haemoglobin

10. How much oxygen, blood supplies to tissues in one circulation(1) 75% (2) 1.34%(3) 25% (4) 7%

11. Abdominal breathing refers to(1) Normal breathing (2) Slow breathing(3) Fast breathing (4) Voluntary breathing

12. Inhibition of respiratory centre is termed(1) Bradypnoea (2) Apnoea(3) Anoxia (9) Tachypnoea

13. Under normal condition 100 ml blood carry(1) 4 ml CO2 (2) 10 ml CO2

(3) 1.34 ml CO2 (4) 30 ml CO2

14. Haldane effect is due to(1) CO2 (2) Lactic add(3) pH (4) Oxyheamoglobin

15. External respiration refers to exchange of gas s between(1) Inspired air and blood (2) Blood and tissue fluid(3) Alveolar air and blood (4) Environmental air and lungs

16. If expiratory reserve volume is 1100 ml residual volume is 1200 ml and tidal volume is 500 ml 500 ml. what shall be the functional residual capacity(1) 1600 ml (2) 2800 ml(3) 2300 ml (4) 1200 ml

17. What percentage of CO2 flows in blood in form of bicarbonates(1) 7% (2) 23%(3) 5Q% (4) 70%

18. Effect of CO2 Concentration on dissociation of oxyhemoglohin is called(1) Bohr's effect (2) Haldane effect(3) Hamburger effect (4) Gaud Kov’s effect

19. Which part of thyroid cartilage in larynx is closed?(1) Dorsal (2) Ventral(3) Anterior (4) Posterior

20. The two nasal chambers are separated by which bone (in human):(1) Mesethmoid (2) Ethmoid(3) Maxilla (4) Palatine

21. Oxygen in expired air(1) 10% (2) 16%(3) 19% (4) 4%

22. Rate of breathing in rabbit(1) 12 / min (2) 36-38/min(3) 100/min (4) 300/mm

23. Chloride shift for the transport of(1) O2 (2) CO2

(3) CO (4) Ozone

24. How oxygen enters in blood from alveoli of lungs(1) Pressure of CO2 (2) Simple diffusion(3) By Hb (4) None of these

25. Why people take yawn(1) Because of deficiency of O2 (2) Deficiency of CO2

(3) Excess of O2 (4) Infection

26. During inspiration muscles of diaphragm(1) Contracts (2) Expands(3) No effect (4) Coiled like string

27. Air filled in dead space is(1) 150 CC (2) 350 CC(3) 500 CC (4) 1500 CC

28. Azygous lobe is part of(1) Lung (2) Kidney(3) Larynx (4) Palate

29. Very high number of alveoli present in a king is meant for(1) More space for increasing volume of inspired air(2) More area for diffusion(3) Making the organ spongy(4) Increasing nerve supply

30. Expiration involves(1) Relaxation of diaphragm and intercostal muscles(2) Contraction of diaphragm and intercostal muscles(3) Contraction of diaphragm muscles(4) Contraction of intercostal muscles

31. Expiratory muscles contract at the time of(1) Deep inspiration (2) Normal inspiration and expiration(3) Forceful expiration (4) Normal expiration

32. Inflammation of the lung covering causing severechest pain is(1) Emphysema (2) Pleurisy(3) Asphyxia (4) Hypoxia

33. The function of tracheal cilia is to(1) Pass mucus out (2) Pass mucus in(3) Pass air out (4) Pass air in

34. In the process of transport of CO2 which phenomenon occurs between RBCs and plasma(1) Osmosis (2) Adsorption(3) Chloride shift (4) Absorption

35. Oxygen dissociation curve of haemoglobin is(1) Sigmoid (2) Hyperbolic(3) Linear (4) Hypobolic

36. For proper transport of O2 and CO2 blood should be(1) Slightly acidic (2) Strongly acidic(3) Strongly alkaline (4) slightly alkaline

37. What, would happen when blood is acidic(1) Binding of oxygen with haemoglobin increases(2) Red blood corpuscles are formed in higher number(3) Binding of oxygen with haemoglobin decreases(4) There is no change in oxygen binding nor number of RBC

38. Oxygen haemoglobin dissociation curve will shift to right on decrease of(1) Acidity (2) Carbon dioxide concentration(3) Both 1 & 2 (4) pH

39. Which one of the following statement is correct?(1) Chest expands because air enters into the lungs(2) Air enters into the lungs because chest expands(3) The muscles of the diaphragm contracts because air enters into the lungs(4) All of the above statements are correct

40. “Emphysema" is a condition in which –(1) Respiratory centre inhibited (2) Lot of fluid in the lungs(3) The walls separating the alveoli break (4) Lungs have more O2

41. The combination of oxygen with haemoglobin is called(1) Oxidation (2) Oxygenation(3) Reduction (4) None of the above

42. Each lung is enclosed in a double membrance called as pleura. The membrance which closely: covet, the lung is(1) Lung pleura (2) Visceral pleura(3) Peritoneal pleura (4) Parietal pleura

43. Discomfort in breathing due to respiration ailments is called(1) Apnoea (2) Dyspnoea(3) Bradypnoea (4) Eupnoea

44. Inhibitory centre and pneumotaxis centre concerned with(1) Respiration (2) Digestion(3) Reflex action (4) Breathing

45. Right lung of Rabbit has(1) 2 lobes (2) 4 lobes(3) 5 lobes (4) 6 lobes

46. Which of the following prevents collapsing of Trachea(1) Muscles (2) Diaphragm(3) Ribs (4) Cartilaginous capsule

47. The covering of lungs in Rabbit is(1) Peritoneum (2) Pericardium(3) Pleural membrane (4) Glission capsules

48. Hamburger's phenomenon is also called(1) CO2 shift (2) Chloride shift(3) Hydrogen shift (4) None of the these

49. The long trachea of rabbit contains(1) Buccal cord (2) Thyroid(3) Complete tracheal cartilages (4) Incomplete tracheal cartilages

50. Respiratory system is derived from(1) Ectoderm (2) Endoderm(3) Both 1 & 2 (4) Endo mesoderm

51. In Man, the structures with a function similar to spiracles of cockroach are(1) Lungs (2) Alveoli(3) Bronchioles (4) Nostrils

52. Among mammals, the efficiency of ventilation of lungs as compared to reptiles and birds is better developed by the presence of(1) Ribs & costal muscles (2) Only ribs(3) Only costal muscles (4) Diaphragm

53. The structure which prevents the entry of food into respiratory tract is(1) pharynx (2) Larynx(3) Glottis (4) Epiglottis

54. If the thoracic wall but not the lungs are punctured(1) The lungs get inflated (2) The than dies as the lungs

get collapsed(3) The breathing rate decreases (4) The breathing rate increases

55. Cartilage of santorini is a band in(1) Cricoid (2) Arytenoid(3) Thyroid (4) None

56. Larynx open into pharynx by(1) Gullet (2) Glottis(3) Epiglottis (4) None

57. Exchange of gases in man takes place in(1) Trachea (2) Bronchus(3) Alveoli (4) All

58. The most important function of diaphragm of mammals is(1) To decide the body cavity into compartments(2) To protect lungs(3) To aid in respiration(4) To aid in ventilation

59. In frog cutaneous respiration takes place(1) In water (2) On land(3) In hibernation (4) All (Always)

60. Ratio of oxyhemoglohin and haemoglobin in blood is based upon(1) Oxygen tension (2) Carbon-di-oxide tension(3) Carbonate tension (4) Bicarbonate tension

61. Frog can not live without(1) Cutaneous respiration (2) Pulmonary respiration(3) Buccal respiration (4) All

62. In fever breathing rate(1) Increase (2) Decrease(3) Stop (4) None

63. Which forms stable compound with haemoglobin?(1I) O2 (2) CO2

(3) CO (4) All

64. Total lung capacity is(1) One lit (2) 3 lit(3) 6 lit (4) 8 lit

65. In rabbit respiration takes place in(1) Cells lining the lungs cavity (2) Cells found in blood(3) All living cells of the body (4) Only RBC

66. Asthma is a respiratory disease caused due to(1) Infection of trachea (2) Infection of lungs(3) Bleeding into pleural cavity (4) Spasm in bronchial muscles

67. The impulse for voluntary muscles for forced breathing starts in(1) Medulla oblongata (2) Vagus nerve(3) Cerebellum (4) Cerebrum

68. The process of respiration is concerned with(1) In take of O2 (2) Liberation of O2

(3) Liberation of CO2 (4) Liberation of energy

69. Orr Lungs of rabbit and man are(1) Sucken lungs (2) Pressure lungs(3) Aquatic lungs (4) None

70. Maximum expiration after full inspiration is called(1) Vital capacity (2) Lung capacity(3) Tidal volume (4) Residual volume

71. Mammalian lungs are(1) Hollow (2) Solid & spongy(3) Spongy (4) None

72. CO2 + H2O is produced during as end product in(1) Anaerobic respiration (2) Aerobic respiration(3) Both (4) None

73. Nasal chamber is lined by(1) Olfactory epithelium (2) Glandular epithelium(3) Highly vascularised epithelium (4) All

74. Signet ring cartilage of larynx is(1) CI Void (2) Arytenoid(3) Thyroid (4) All

75. In thoracic cavity of man one is present(1) Lungs only (2) Lungs + Heart(3) Lungs + heart + Stomach (4) Hearts only

76. Respiratory rate in new born baby is(1) Equal to adult (2) Less then adult(3) More than adult (4) None

77. Air that remains in lung after most powerful expiration is(1) Inspiratory air (2) Dead space ail(3) Tidal air (4) Residual air

78. Carbonic anhydrase is found in(1) W.B.C. (2) RBC(3) Blood plasma (4) All

79. The chloride shift is movement of CI(1) From plasma to RBC (2) From WBC to plasma(3) Both (4) None

80. During inspiration, the pressure of air is maximum in(1) Trachea (2) Bronchus(3) Alveoli (4) Environment

81. One of the following is correct statement(1) All animals breathe (2) All animals do not breathe(3) All cells of the body do not respire for energy (4) None

82. In nasal passage, the turbinal bones are present in which of the following groups –(1) In all vertebrates (2) Amphibian(3) Mammals (None

83. 100 ml of blood can carry CO2

(1) 20 ml (2) 0,3 ml(3) 3.7 ml (4) 6.3 ml

84. A molecule of haemoglobin can carry oxygen molecule:(1) 2 (2) 4(3) 6 (4) 8

85. Number of alveoli present in human lungs is(1) 7-10 million (2) 70-100 million(3) 300-400 million (4) 800-1000 million

86. One of the following is a difference between pulmonary respiration of frog and human(1) Diaphragm and ribs play role in breathing(2) Lungs are respiratory organs(3) Respiration occurs due to pressure gradient(4) None

87. Vocal cords are attached with (1) Cricoid (2) Arytenoid(3) Thyroid and Arytenoid (4) None

88. Arytenoid cartilage in larynx are(1) Elastic (2) Hyaline(3) Calcified (4) All of these

89. Which of the following is not a respiratory organ in rabbit?(1) Nasal chamber (2) Oesophagus(3) Pharynx (4) Trachea

90. Lungs are divided into lobes in rabbit(1) 4 right & 2 left lobes (2) 2 right & 3 left lobes(3) 2 right & 2 left lobes (4) none

91. Myoglobin is found in(1) Lungs (2) Blood(3) Muscles (4) RBC

92. Residual air mostly occurs in(1) Alveoli (2) Bronchus(3) Nostrils (4) Trachea

93. Volume of air inspired or expired with each normal breath is known as(1) Inspiratory capacity (2) Total lung capacity(3) Tidal volume (4) Residual volume

94. Rate of respiration is directly affected by(1) CO2 concentration (2) O2 in trachea(3) Concentration of O2 (4) Diaphragm expansion

95. Which is correct?(1) Respiratory centres are not affected by CO2

(2) In humans vital capacity is just double the expiratory volume(3) A human lung has 103 alveoli(4) During inspiration the lungs act as suction pump

96. Which energy is consumed in breathing?(1) Mechanical (2) Chemical(3) Bioelectricity (4) Physical energy

97. Body tissues obtain O2 from haemoglobin because of its dissociation in tissues caused by(1) Low oxygen concentration and high CO2 concentration(2) High O2 concentration(3) Low CO2 concentration(4) High CO2 concentration

98. Narrowest and most abundant tubes of lungs are(1) Bronchioles (2) Bronchus(3) Alveoli (4) Trachea

99. Oxygen in lungs ultimately reaches(1) Alveoli (2) Trachea(3) Bronchus (4) Bronchioles

100. Most of the carbon - di - oxide is carried in the blood as(1) Bicarbonates (2) Carbon monoxide(3) Carbonic acid (4) Carbonates

101. In vertebrate blood the carrier of oxygen to the tissues or respiratory pigment is(1) Plasma (2) Lymphocytes(3) Leucocytes (4) Haemoglobin

102. Type of cartilages in larynx of rabbit according to shape are:(1) 1 (2) 2(3) 3 (4) 4

103. Characteristic feature of haemoglobin is(1) Reversible union with Oxygen (2) It Is Blue colour(3) Presence of Cu (4) Presence of globulin protein

104. Minimum concentration and pressure of CO In alveoli of lungs that would be dangerous to man(1) 1 %, 0.7 mm Hg (2) 0-4%, 0 - 7 mm Hg(3) 2 - 7%, 0 - 4 mm Hg (4) 0 - 3%, 0 - 4 mm Hg

105. What is the common element in haemoglobin and Myoglobin?(1) Fe (2) Cu(3) An (4) Mg

106. Melanin protect from:(1) U.V. rays (2) Visible rays(3) Infrared rays (4) X-rays

107. In humans sound is produced by(1) Syrinx (2) Larynx(3) Bronchus (4) Trachea

108. Carbon monoxide prevents transport of oxygen by(1) Forming stable compound with haemoglobin(2) Destroying haemoglobin(3) Forming carbon dioxide with oxygen(4) Destroying ABC's

109. Oxyhaemoglobin acts as(1) Alkali (2) Acid(3) Neutral (4) Buffer

110. Lungs are covered by(1) Perichondrium (2) Pleural sac(3) Pericardium (4) Peristomium

111. Number of tracheal rings in man is(1) 16 – 20 (2) 20 – 24(3) 24 – 28 (4) 28 – 32

112. Percentage of oxygen transported by haemoglobin is(1) 93 (2) 95(3) 97 (4) 99

113. The alveolar epithelium in the lung is(1) Nonciliated colomnar (2) Noncilialcd squarnous(3) Ciliated columnar (4) Ciliated squamous

114. Carbon dioxide is transported from tissue to respiratory surface by only(1) Plasma and erythrocytes (2) Plasma(3) Erythrocytes (4) Erythrocytes and leucocytes

115. Respiratory centre is situated in(1) Cerebellum (2) Medulla oblongata(3) Hypothalamus (4) Cerebrum

116. Air is 'breathed through(1) Trachea lungs larynx pharynx alveoli(2) Naive larynx pharynx bronchus alveoli bronchioles(3) Nostrils pharynx larynx trachea bronchi bronchioles alveoli(4) Nose mouth lungs

117. Carbonic anhydrous is mostly active in(1) RBC (2) WBC(3) Blood Plasma (4) Blood Platelets.

118. Common feature of human and insect trachea is(1) No collapsible wall (2) Supporting rings(3) Ectodermal origin (4) Endodermal origin

119. Presence of large number of alveoli around alveolar ducts opening into bronchioles in mamma lungs is(1) Inefficient system of ventilation with title of residual air(2) Inefficient system of ventilation with high percentage of residual air(3) An efficient system of ventilation with no residual air(4) An efficient system of ventilation with little residual air

120. During transport of CO2, blood does not become acidic due to(1) Neutralisation of H2CO3 by Na2CO3 (2) Absorption of leucoyctes(3) Blood buffers (4) Nonaccumulation

121. Carbon monoxide has greater affinity for haemoglobin as compared to oxygen(1) 1000 times (2) 200 times(3) 20 times (4) 2 times

122. At high altitude, RB of human blood will(1) Increase in manlier (2) Decrease in number(3) Decrease in size (4) Increase in size

123. CO2 is transported as(1) Dissolved in blood plasma (2) As carbonic acid(3) In carbaminohaemoglobin (4) As carbaminohaemoglobin and

carbonic ail

124. About 1500 ml of air left in lungs is called(1) Tidal volume (2) lspiratory reserve volume(3) Residual volume (4) Vital capacity

125. Which one protects the lungs(1) Rib (2) Vertebral column(3) Sternum (4) All above

126. Which one has the lowest value(1) Tidal volume (2) Vital capacity(3) Inspiratory reserve volume (4) Expiratory reserve volume

127. Amount of oxygen present in one gram of haemoglobin is(1) 20 ml (2) 1.34 ml(3) 13.4 ml (4) None of these

128. Compound soluble in wow which does not impede oxygen transportation is(1) SO2 (2) SO3

(3) CO (4) NO

129. In lungs air is separated front venous blood by(1) Squamous epithelium + tunic extern of blood vessel(2) Squamous epithelium + endothelium of blood vessel(3) Transitional epithelium + tunic media of blood vessel(4) Columnar epithelium + 3 layered wall of blood vessel.

130. In carbon monoxide poisoning there is(1) Increase in carbon dioxide concentration(2) Decrease in oxygen availability(3) Decrease in free haemoglobin(4) None of these

131. Exchange of gases in lung alveoli occurs through(1) Active transport (2) Osmosis(3) Simple diffusion (4) Passive transport

132. Haemoglobin is(1) Vitamin (2) Skin pigment(3) Blood carrier (4) Respiratory pig

133. Vocal cords occur in(1) Pharynx (2) Larynx(3) Glottis (4) Bronchial tube

134. Concentration of carbonic acid does not increase in blood due to presence of(1) Na+ (2) Mg2+

(3) Ca2+ (4) K+

135. Match the columns

(1) a – r, b – s, c – q, d – p (2) a – t, b – s, c – p, d - q(3) a – r, b – s, c – q, d – t (4) a – r, b – t, c – q, d – p

136. The layer of blood vessel having smooth circular muscles is(1) Outer (2) Inner(3) Middle (4) Both (2) and (3)

137. Oxygen carried by blood is liberated in(1) Arteris (2) Capillaries of body(3) Capillaries of lungs (4) Heart

138. Adam's Apple represents(1) Arytenoid cartilage of larynx (2) Cricoid cartilage of larynx(3) Thyroid cartilage of larynx (4) All the above

139. Hiccough (hiccup) is due to activity of(1) Intercostal muscle (2) Food in air tract(3) Diapharagm (4) Inadequate oxygne in environment

140. Respiratory centre of brain is stimulated by(1) Carbon dioxide content in venous blood(2) Carbon dioxide content in arterial blood(3) Oxygen content in venous blood(4) Oxygen content in arterial blood

141. Carbon dioxide entering erythrocytes reacts with water to form carbonic acid. The enzyme is(1) Carbonic anhydrase (2) Carboxypeptidase(3) Hydrolase (4) Oxidoreductase

142. Determination of oxygen carried by haemoglobin is done by(1) pH (2) Partial pressure of oxygen(3) Partial pressure of carbon dioxide (4) All the above

Column I Column II

(a) Larynx (p) Lid of larynx

(b) Trachea (q) Air sacs

(c) Alveoli (r) Voice box

(d) Epiglottis (s) Wind pipe

(t) Common passage.

143. Arytenoid cartilage is found in(1) Hyoid (2) Sternum(3) Larynx (4) Nose

144. Dissociation of haemoglobin occurs in tissues due to

(1) High (2) Low

(3) Equal Po, (4) Irrespective of

145. At the time of expiration, diaphragm becomes(1) Oblique (2) Normal(3) Flattened (4) Dome-shaped.

146. CO is harmful because: - (1) It forms stable compound with hemoglobin(2) It blocks mitosis(3) It is mutagenic(4) It causes defoliation

147. Exchange of bicarbonates and chloride ions between RBC and plasma is called: -(1) Chloride shift (2) Bohr's effect(3) Haldane's effect (4) Intra cellular respiration.

148. When CO2 concentration in blood increases, breathing becomes –(1) There is no effect on breathing (2) Slow and deep(3) Faster (4) Shallower and slow

149. In which part of lungs gaseous exchange takes place in Rabbit: -(1) Trachea & alveolar duct (2) Trachea & bronchi(3) Alveolar duct & alveoli (4) Alveoli & Trachea

150. lf CO2 concentration increases in blood then breathing will:(1) Increases (2) Decrease(3) Stop (4) Remain unchanged

151. Hearing-Breuer reflex related to: -(1) Effect of pH on respiratory centre(2) Effect of CO2 on respiratory centre(3) Effect of nerves on respiratory centre(4) Effect of temp on respiratory center

152. Toxic effect of carbon monoxide is due to its greater affinity for haemoglobin as compared oxygen and it is: -(1) 2 times (2) 20 times(3) 200 times (4) 300 times

153. Tracheal rings in Rabbit are: -(1) Complete (2) Incomplete(3) Dorsally incomplete (4) Lateral incomplete

ANSWER KEY

Q.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

A. 3 2 2 1 3 3 1 2 2 3 1 2 1 4 4 3 4Q.

18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

A. 1 2 2 2 2 2 2 2 1 1 1 1 2 1 3 2 1Q.

35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

A. 1 4 3 4 2 3 2 2 2 4 2 4 3 2 4 4 4Q.

52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68

A. 4 4 2 2 2 3 4 4 1 1 1 3 3 3 4 4 4Q.

69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85

A. 1 1 2 2 4 1 2 3 4 2 1 4 2 3 3 2 3Q.

86 87 88 89 90 91 92 93 94 95 96 97 98 99 100

101

102

A. 1 3 2 2 1 3 1 3 1 4 2 1 1 1 1 4 4Q.

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

A. 1 1 1 1 2 1 2 2 1 3 2 1 2 3 1 2 2Q.

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

A. 3 2 1 4 3 4 1 2 1 2 3 3 4 2 1 1 3Q.

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

A. 2 3 3 2 1 2 3 2 4 1 1 3 3 1 3 4 3