Body Fluids and Circulation

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.

A unique vascular connection between the digestive tract and liver is called.

1. Hepato-cystic system
2. Hepato-pancreatic system
3. Hepatic portal system
4. Renal portal system

Arrange the following formed elements in the decreasing order of their abundance in blood in humans: Choose the most appropriate answer from the options given below:

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

Persons with 'AB' blood group are called as "Universal recipients". This is due to :

1. Absence of antibodies, anti-A and anti-B, in plasma
2. Absence of antigens A and B on the surface of RBCs
3. Absence of antigens A and B in plasma
4. Presence of antibodies, anti-A and anti-B, on RBCs

Which enzyme is responsible for the conversion of inactive fibrinogens to fibrins?

1. Thrombokinase
2. Thrombin
3. Renin
4. Epinephrine