Q. No.
Which part of the specialized conducting system of the human heart is auto-excitable?
I. SA Node II. AV node
III. AV bundle IV. Purkinje fibers
1. I and II only
2. I, II and III only
3. II, III and IV only
4. I, II, III and IV
I. SA Node II. AV node
III. AV bundle IV. Purkinje fibers
1. I and II only
2. I, II and III only
3. II, III and IV only
4. I, II, III and IV
What is true about the cell shown in the given diagram?
1. It is rarest WBC found in the blood.
2. It is the largest WBC
3. Its number is increased in acute bacterial infections
4. It is involved in transport of blood gases
Match each item in Column I with one in Column II and choose your answer from the codes given below:
A. Generation a. AV node of impulse
B. Conduction delay b. SA node
C. Lub c. Closure of semilunar valves
D. Dub d. Closure of AV valves
A. B. C. D.
1. a b c d
2. b a d c
3. a b d c
4. b a c d
When the plasma of a person has both anti A and anti B antibodies the blood group of this person would be:
1. A
2. B
3. AB
4. O
During which stage of the cardiac cycle is the first heart sound produced?
1. Atrial diastole
2. Joint diastole
3. Ventricular systole
4. Ventricular diastole
A normal event in the process of blood clotting is the
1. production of erythropoietin.
2. conversion of fibrin to fibrinogen.
3. activation of prothrombin to thrombin.
4. increase in platelets.
Serum is-
(1) Blood- corpuscles
(2) Blood- corpuscles –clotting factors
(3) Plasma- clotting factors
(4) Both 2 and 3
Match the following:
i)Fibrinogen p. Defence
ii)Globulin q. Osmotic balance
iii)Albumin r. Clotting
(1) i)r, ii)p, iii)q
(2) i)p, ii)r, iii)q
(3) i)q, ii)p, iii)r
(4) i)r, ii)q, iii)p
Which of the following are not correct:
i) Spleen is the graveyard for RBC.
ii) All the mammals have biconcave RBCs.
iii) Clotting factors present in plasma are in active form.
iv)All the substances released by platelets are involved in clotting only.
(1) i), iii), iv)
(2) ii), iii), iv)
(3) i), ii), iii), iv)
(4) ii), iii)
Lymph has following properties
i. Same mineral distribution as that of plasma
ii. Intestine also has lymph
iii. Also known as tissue fluid because it helps in exchange
iv. Lymph plays role in defence as well
How many statements are correct?
(1) 3
(2) 2
(3) 4
(4) 1
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