Circulatory System Quiz | Circulatory System Multiple Choice Questions(MCQs) & Answers

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Questions
1 RBCs do not occur in
A frog
B cow
C camel
D cockroach

Answer: cow
2 Child death may occur in the marriage of
A Rh+ man and Rh’ woman
B Rh man and Rli woman
C Rh man and Rh woman
D Rh man and Rh’ woman

Answer: Rh man and Rli woman
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3 Sickle cell disease is characterised by
A Leukemia
B Polycythemia
C Mental Retardation
D Hemolytic Anaemia

Answer: Hemolytic Anaemia
4 Presence of RBC in urine is
A Alkaptonuria
B Urothiasis
C Hematuria
D Proteinuria

Answer: Hematuria
5 Haemophilia is
A Royal Disease
B Faulty Blood Clotting
C Both A And B
D Mosquito Having Haemocoel

Answer: Royal Disease
6 Which one engulfs pathogens rapidly?
A Acidophils
B Monocytes
C Basophils
D Neutrophils

Answer: Neutrophils
7 A person with blood group A requires blood. The blood group which can be given is
A A and B
B A and AB
C A and O
D A, B, AB and O

Answer: A and O
8 A vein possesses a large lumen because
A Tunica Media And Tunica Externa Form A Single Coat
B Tunica Interna And Tunica Media Form A Single Coat
C Tunica Interna, Tunica Nicuiu And Tunica Externa Are Thin
D Tunica Media Is A Thin Coat

Answer: Tunica Media Is A Thin Coat
9 Wall of blood capillary is formed of
A Haemocytes
B Parietal Cells
C Endothelial Cells
D Oxyntic Cells

Answer: Endothelial Cells
10 Carbonic anhydrase occurs in
A lymphocytes
B blood plasma
C RBC
D leucocytes

Answer: RBC
11 Cells formed in bone marrow include
A RBC
B RBC and leucocytes
C leucocytes
D lymphocytes

Answer: RBC and leucocytes
12 Cells involved in immune mechanism are
A Erythrocytes
B Lymphocytes
C Eosinophils
D Thrombocytes

Answer: Lymphocytes
13 The pace setter in the heart is called
A Sino-Atrial Node (SAN)
B Atrio-Ventricular Node (AVN)
C Purkinje Fibres
D Papillary Muscle

Answer: Atrio-Ventricular Node (AVN)
14 HIV that causes AIDS first starts destroying
A Helper T-Lymphocytes
B B-Lymphocytes
C Leucocytes
D All Of The Above

Answer: Helper T-Lymphocytes
15 Antibodies in our body are complex
A Glycoproteins
B Lipoproteins
C Steroids
D Prostaglandins

Answer: Glycoproteins
16 In veins, valves are present to check backward flow of blood flowing at
A Atmospheric Pressure
B High Pressure
C Low Pressure
D All Of These

Answer: Low Pressure
17 The lymph serves to
A Return The Interstitial Fluid To The Blood
B Return The Wbcs And Rbcs To The Lymph Nodes
C Transport Co2 To The Lungs
D All Of The Above

Answer: Return The Interstitial Fluid To The Blood
18 The correct route through which pulse-making impulse travels in the heart is
A SA node —> Purkinje fibres —> bundle of His —> AV node —> heart muscles
B SA node —> AV node —> bundle of His —> Purkinje fibres —> heart muscles
C AV node —> bundle of His —> SA node —> Purkinje fibres —> heart muscles
D AV node —> SA node —> Purkinje fibres —> bundle of His —> heart muscles

Answer: SA node —> AV node —> bundle of His —> Purkinje fibres —> heart muscles
19 The interferons are
A Antigen Proteins
B Antiviral Proteins
C Antibiotic Proteins
D All Of These

Answer: Antiviral Proteins
20 a person shows production of interferons in his body, the chances are that he has got an infection of
A Tetanus
B Malaria
C Typhoid
D Measles

Answer: Measles

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