Which one of the following animals has two separate circulatory pathways?

1. Frog

2. Lizard

3. Whale

4. Shark

Subtopic:  Human Heart: Double Circulation |
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Doctors use stethoscope to hear the sounds produced during each cardiac cycle. The second sound is heard when

1. AV valves open up

2. Ventricullar walls vibrate due to gushing in of blood from atria

3. Semi lunar valves close down after the blood flows into vessels from ventricles

4. AV node receives signal from SA node

Subtopic:  Human Heart: Cardiac Cycle |
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Blood pressure in the mammalian aorta is maximum during
1. systole of the left atrium
2. diastole of the right ventricle
3. systole of the left ventricle
4. diastole of the right atrium

Subtopic:  Human Heart: Cardiac Cycle |
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Which one of the following is correct ?
(1) Serum = Blood + Fibrinogen
(2) Lymph = Plasma + RBC + WBC
(3) Blood = Plasma + RBC + WBC
(4) Plasma = Blood – Lymphocytes

Subtopic:  Blood: General Description & RBC: Part 1 | Blood: General Description & RBC |
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Person with blood group AB is considered as universal recipient because he has:

1. both A and B antigens on RBC but no antibodies in the plasma

2. both A and B antibodies in the plasma

3. no antigen on RBC and no antigens in the plasma

4. both A and B antigens in the plasma but no antibodies

Subtopic:  Blood: Blood Group (A,B,O) |
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The diagram given here is the standard ECG of a normal person, The P - wave represents the 

170951
1. Initiation of the ventricular contraction
2. Beginning of the systole
3. End of systole
4. Contraction of both the atria
Subtopic:  ECG & Coronary Artery Disease |
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Figure shows schematic plan of blood circulation in humans with labels A to D. Identify the label and give its function/s. 

1. B-Pulmonary artery- takes blood from heart to lungs, PO2 = 90mm Hg

2. C-Vena Cava- takes blood from body parts to right auricle, PCO2 = 45mm Hg

3. D-Dorsal aorta- takes blood from heart to body parts, PO2 = 95mm Hg

4. A- Pulmonary vein - takes impure blood from body parts, PO2 = 60mm Hg

Subtopic:  Human Heart: Double Circulation |
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A certain road accident patient with unknown blood group needs immediate blood transfusion. His one doctor friend at once offers his blood. What was the blood group of the donor?

1. Blood group B

2. Blood group AB

3. Blood group O

4. Blood group A

Subtopic:  Blood: Blood Group (A,B,O) |
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Which one of the following human organs is often called the "graveyard" of RBCs ? 

1.  Kidney 

2.  Spleen 

3.  Liver 

4. Gall bladder 

Subtopic:  Blood: General Description & RBC |
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Arteries are best defined as the vessels which

1.  carry blood away from the heart to different organs

2.  break up into capillaries which reunite to form a vein

3.  carry blood from one visceral organ to another visceral organ

4.  supply oxygenated blood to the different organs

Subtopic:  Human Heart: Double Circulation |
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