1.  How do parasympathetic neural signals affect the working of the heart?

2. In ECG, the depolarisation of atria is indicated by

3. Christmas disease is also known as

4. If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially non-functional, what will be the immediate effect?

5. Which one of the following plasma proteins is involved in the coagulation of blood?

6. Heparin is

7. Pace maker influences:

8. Arteries are best defined as the vessels which

9. As the age advances, there is a gradual thinning of hair in human males. This is mainly because of lowered:

10. An adult human has systolic and diastolic pressures as:

11. Angina pectoris is very often mistaken for

12. What would be the cardiac output of a person having 72 heart beats per minute and a stroke volume of 50 ml?

13. Sickle cell anaemia is induced by:

14. Among the following stem cells, which are found in the umbilical cord?

15.  A certain road accident patient with an unknown blood group needs immediate blood transfusion. His one doctor friend at once offers his blood. What was the blood group of the donor?

16. Which of the following statement/statements can be related to erythroblastosis foetalis?

17. A respiratory pigment is absent in

18. If vagus nerve is cut the heart beat

19. Cardiac arrest is the state when

20. What is the normal blood pressure of human beings?