Which enzyme is responsible for the conversion of inactive fibrinogens to fibrins?
1. Epinephrine
2. Thrombokinase
3. Thrombin
4. Renin
Persons with 'AB' blood group are called as "Universal recipients". This is due to:
1. | Presence of antibodies, anti-A and anti-B, on RBCs. |
2. | Absence of antibodies, anti-A and anti-B, in plasma. |
3. | Absence of antigens A and B on the surface of RBCs. |
4. | Absence of antigens A and B in plasma. |
Erythroblastosis fetalis is caused when:
1. Rh– female & Rh+ male
2. Rh+ female & Rh– male
3. Rh+ female & Rh+ male
4. Rh– female & Rh– male
The correct statement in respect of protein haemoglobin is that it:
1. Maintains blood sugar level
2. Acts as an oxygen carrier in the blood
3. Forms antibodies and offers resistance to diseases
4. Functions as a catalyst for biological reactions
Given below is the ECG of a normal human. Which one of its components is correctly interpreted below?
1. | Peak P-Initiation of left atrial contraction only |
2. | Complex QRS-One complete pulse |
3. | Peak T-Initiation of total cardiac contraction |
4. | Peak P and Peak R together-systolic and diastolic blood pressures |
The haemoglobin content per 100 ml of blood of a normal healthy human adult is:
1. 25-30 g
2. 17-20g
3. 12-16 g
4. 5-11
Which of the following conditions causes erythroblastosis fetalis?
1. Mother and fetus
2. Mother and fetus
3. Both mother and fetus
4. Both mother and fetus
Which of the following is associated with a decrease in cardiac output?
1. Sympathetic nerves
2. Parasympathetic neural signals
3. Pneumotaxic center
4. Adrenal medullary hormones
Statement I: | The coagulum is formed of network of threads called thrombins. |
Statement II: | Spleen is the graveyard of erythrocytes. |
1. | Increased ventricular pressure causes closing of the semilunar valves. |
2. | The atrio-ventricular node (AVN) generates an action potential to stimulate atrial contraction. |
3. | The tricuspid and the bicuspid valves open due to the pressure exerted by the simultaneous contraction of the atria. |
4. | Blood moves freely from atrium to the ventricle during joint diastole. |