Body Fluids and Circulation

The opening between the right atrium and the right ventricle is guarded by .

1. sino-atrial node
2. bicuspid valve
3. tricuspid valve
4. semilunar valve

Cardiac activities of the heart are regulated by: Choose the correct answer from the options given below :

1. A, C and D Only
2. A, B and D Only
3. A, B and C Only
4. A, B, C and D

Following are the stages of pathway for conduction of an action potential through the heart Choose the correct sequence of pathway from the options given below

1. E-C-A-D-B
2. A-E-C-B-D
3. B-D-E-C-A
4. E-A-D-B-C

Match List I with List II : Choose the correct answer from the options given below :

1. A-I, B-III, C-IV, D-II
2. A-III, B-II, C-IV, D-I
3. A-II, B-III, C-I, D-IV
4. A-IV, B-II, C-I, D-III

A person with blood group ARh- can receive the blood transfusion from which of the following types? Choose the correct answer from the options given below :

1. D and E only
2. D only
3. A and B only
4. C and D only

'Lub' sound of Heart is caused by the .

1. closure of the semilunar valves
2. opening of tricuspid and bicuspid valves
3. opening of the semilunar valves
4. closure of the tricuspid and bicuspid valves

Match List I with List II. Choose the correct answer from the options given below :

1. A-IV, B-III, C-II, D-I
2. A-II, B-IV, C-I, D-III
3. A-I, B-II, C-III, D-IV
4. A-III, B-I, C-IV, D-II

Which of the following statements are correct? Choose the correct answer from the options given below:

1. C and E only
2. B and C only
3. A and B only
4. D and E only

Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below:

1. Both Statement I and Statement II are correct
2. Both Statement I and Statement II are incorrect
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct

Which one of the following statements is correct?

1. The atrio-ventricular node (AVN) generates an action potential to stimulate atrial contraction
2. The tricuspid and the bicuspid valves open due to the pressure exerted by the simultaneous contraction of the atria
3. Blood moves freely from atrium to the ventricle during joint diastole.
4. Increased ventricular pressure causes closing of the semilunar valves.