Q. No.The autonomic regulation of cardiac activity is carried out by a neural center located in:
1.
Medulla oblongata
2.
Hypothalamus
3.
Cerebrum
4.
Thalamus
An Rh +ve female is pregnant with an Rh –ve fetus for the second time. The consequences can be:
| 1. | The fetus can have severe anemia or jaundice |
| 2. | The mother can have delayed reactions and may develop jaundice |
| 3. | There will be no consequences |
| 4. | The fetus will have growth and mental retardation |
RBCs are the most common cells in human body and have a shape of a biconcave disc that:
| 1. | decreases the distance between the cell membrane and hemoglobin molecules, facilitating oxygen uptake |
| 2. | allows the cells to hold more hemoglobin for a given volume |
| 3. | allows them to squeeze through the tight spaces in the spleen |
| 4. | keeps them from leaking out through the walls of capillaries |
Match the plasma proteins in Column I with their function in Column II and select the correct answer from the codes given:
| Column I | Column II | ||
| A. | Albumins | a. | Hemostasis |
| B. | Globulins | b. | Transport carriers and immunity |
| C. | Fibrinogen | c. | Colloid osmotic pressure |
Codes:
| A | B | C | |
| 1. | a | b | c |
| 2. | a | c | b |
| 3. | b | a | c |
| 4. | c | b | a |
To begin the blood clot formation cascade, the enzyme complex required is:
| 1. | Thromboxane A2 | 2. | Thrombin |
| 3. | Thrombokinase | 4. | Heparin |
Which of the following recordings of blood pressure in a healthy person will be considered as normal?
| 1. | 150/80 mmHg | 2. | 110/70 mmHg |
| 3. | 120/96 mmHg | 4. | 180/110 mmHg |
1. Ventricular depolarization
2. Ventricular repolarization
3. Atrial depolarization
4. Atrial repolarization
The second heart sound [dub] is associated with simultaneous closure of:
| 1. | Right AV and pulmonary semilunar valve |
| 2. | Left AV and aortic semilunar valve |
| 3. | Right and left AV valves |
| 4. | Right and left semilunar valves |
Which of the following would not be normal in a healthy human being?
1. A cells/blood ratio of 45%
2. A plasma albumin concentration of 4%
3. An RBC count of 5.2 million mm-3
4. A hemoglobin level of 15 gram per liter
What would be true for the white blood cell shown in the given diagram?
| 1. | They differentiate into phagocytic cells |
| 2. | They secrete histamine and heparin in the blood |
| 3. | They are responsible for providing adaptive immunity in vertebrates |
| 4. | Their number is increased in acute bacterial infections |
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