Q. No.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
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
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. |
Which enzyme is responsible for the conversion of inactive fibrinogens to fibrins?
1. Epinephrine
2. Thrombokinase
3. Thrombin
4. Renin
Match the following columns and select the correct option:
| Column-I | Column-I | ||
| (a) | Eosinophils | (i) | Immune response |
| (b) | Basophils | (ii) | Phagocytosis |
| (c) | Neutrophils | (iii) | Acidophils |
| (d) | Lymphocytes | (iv) | Release granules containing histamine |
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (i) | (ii) | (iii) |
| 2. | (i) | (ii) | (iv) | (iii) |
| 3. | (ii) | (i) | (iii) | (iv) |
| 4. | (iii) | (iv) | (ii) | (i) |
The QRS complex in a standard ECG represents:
| 1. | Depolarisation of auricles | 2. | Depolarisation of ventricles |
| 3. | Repolarisation of ventricles | 4. | Repolarisation of auricles |
| Statement I: | The coagulum is formed of network of threads called thrombins. |
| Statement II: | Spleen is the graveyard of erythrocytes. |
| 1. | Statement I is incorrect but Statement II is correct. |
| 2. | Both Statement I and Statement II are correct. |
| 3. | Both Statement I and Statement II are incorrect. |
| 4. | Statement I is correct but Statement II is incorrect. |
| 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. |
Inadequate supply of oxygen to heart muscles leads to a symptom of acute chest pain. This disorder of the circulatory system is identified as:
| 1. | Angina pectoris | 2. | Cardiac arrest |
| 3. | Heart failure | 4. | Coronary Heart Disease |
| (a) | Platelets | (b) | Neutrophils |
| (c) | Erythrocytes | (d) | Eosinophils |
| (e) | Monocytes | ||
| 1. | (c), (a), (b), (e), (d) | 2. | (c), (b), (a), (e), (d) |
| 3. | (d), (e), (b), (a), (c) | 4. | (a), (c), (b), (d), (e) |
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