Body fluids and circulation: Previous Year Questions | 2010 to 2014


2010 MARCH

1.     The blood test report of a patient is given below:

RBC                      5.5 million/mm3
Neutrophil             65%
Monocyte              5%
Basophil                1%
Eosinophil             15%
Lymphocyte          23%
Platelet                  250000 /mm3

a.   Which constituent of his blood is abnormal?
b.   What is the normal function of that constituent?

2.     Observe the flowchart and answer the questions given:

SA node
AV node
Ventricle contracts
AV bundle
Auricle contracts

a.   Redraw the flowchart correctly.
b.   What will happen if the SA node is not working properly?


1.     a) Identify WBCs marked as a1, b1, c1 and d1. (2)

b) What is the normal percentage of the WBC marked as b1? (½)
c) Categorise the above WBCs into granulocytes and agranulocytes.  (½)

2011 MARCH

1.     Result of a project study related to the circulatory disorders in an area is given below.

a.   What is your observation? (½)
b.   Name any one circulatory disorder and its characteristics. (1½)
c.    Suggest two measures to avoid these disorders. (1)


1.     Identify the wrong statement and rewrite in correct form.
a.   ‘O’ group is known as universal recipient
b.   AB group blood has no antibodies.
c.    Blood normally contains 150000 to 350000 platelets /mm3
d.   Open circulation is present in arthropods & molluscs. (1)
2.     Match the following (2)
A                                    B
           i.   Basophil             -  Phagocytosis
          ii.   Lymphocyte      -   Inflammatory reaction
         iii.    Neutrophil        -   Associated with allergic reaction
         iv.   Eosinophil         -   Secrete antibodies
                                            -   Helps in blood coagulation
                                            -   Oxygen transport

2012 MARCH

1.   If a person having blood group A is given blood transfusion of blood group B by mistake, what will be its effect? (1)
2.   Stethoscope is an instrument which is used to detect the sounds of the heart.
a.   Mention the two sounds of the heart. (1)
b.   Give the causes of heart sound. (1)


1.   The blood pressure of a person is shown as 170/130 mm Hg. What would be his disease? How it affects his body? (1)

2.   Observe the figure and answer the question.


a.   Name the nodal tissue A and B (1)
b.   Why A is called pacemaker? (1)

2013 MARCH

1.   A person with A-ve blood group is injured severely in an accident. His relatives with A+ve and B-ve blood groups were ready to donate blood for him. Infer the consequences if he receives blood from them. (1)

a.   Label PQRST in the graph. (1)
b.   What does the T wave represent? (1)


1.   Observe the blood cells and attempt the following questions:

a. Which among the above cells least possibly found when you observe a drop of blood? (½)
b. Write one function of any two types. (1)
c. Categorize the WBC based on presence or absence of protein granules. (½)

2.   Due to developmental abnormality the wall of the left ventricle of an infant’s heart has the same thickness as that of right ventricle. What would be its specific effect on circulation of blood? (1)

2014 MARCH

1.    Answer the following in a few words. (4)
a. Significance of pulmonary circulation in man.
b. Function of erythrocytes.
c. Pacemaker for a human heart and its significance.
d. Normal blood pressure of human beings and its variation during hypertension.

2.   The sequential events in the heart which are cyclically repeated are called the cardiac cycle.
a.   What are the phases of the cardiac cycle?
b.   Why do we call the human heart as mayogenic?
c.    What is the role of SAN (Sinu Atrial Node) on a human heart? (1+1+1=3)

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