Agranulocytes responsible for the immune response of the body are:
| 1. | basophils | 2. | neutrophils |
| 3. | eosinophils | 4. | lymphocytes |
The second heart sound (dubb) is associated with the closure of
1. tricuspid valve
2. semilunar valve
3. bicuspid valve
4. tricuspid and bicuspid valve
Which of the following correctly explains a phase/event in cardiac cycle in a standard electrocardiogram?
| 1. | QRS complex indicates atrial contraction. |
| 2. | QRS complex indicates ventricular contraction. |
| 3. | Time between S and T represents atrial systole. |
| 4. | P-wave indicates beginning of ventricular contraction. |
Which of the following type of cells lack a nucleus?
| 1. | Lymphocyte | 2. | Neutrophils |
| 3. | Eosinophils | 4. | Erythrocytes |
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 |
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 |
Impulse of heartbeat originates from:
1. S.A. Node
2. A. V. Node
3. Vagus Nerve
4. Cardiac Nerve
| 1. | No antigens but both a and b antibodies are present |
| 2. | A antigen and b antibody present |
| 3. | Antigen and antibody, both are absent |
| 4. | A and B antigens and a, b, antibodies are present |
Single circulation is characteristic of
| 1. | Fish heart |
| 2. | Frog heart |
| 3. | Crocodilian heart |
| 4. | Marsupial heart |
Consider the following diagrams depicting a cardiac cycle:

The correct sequence in which these vents occur would be:
1. 2, 3, 1
2. 1, 2, 3
3. 2, 1, 3
4. 3, 1, 2