Q. No.In the nodal tissue of the human heart, a conduction delay is seen in:
1.
SA node
2.
AV node
3.
AV bundle
4.
Purkinje fibers
All vertebrates posses a:
| 1. muscular chambered heart | 2. renal portal system |
| 3. nucleated RBC | 4. double circulation |
To prevent eryhtroblastosis fetalis in future pregnancies:
| 1. | Anti-Rh Immunoglobulins must be given to Rh –ve mothers at the time of each delivery |
| 2. | Anti-Rh Immunoglobulins must be given to new born at the time of each delivery |
| 3. | Rh Antigens must be given to new born at the time of each delivery |
| 4. | Anti Antigens must be given to Rh –ve mothers at the time of each delivery |
With the help of ECG tracings, the heart rate of the person can be calculated by:
1. measuring the size of the PR or PQ interval
2. counting the number of QRS complexes in a given period of time
3. counting the number of T waves between two successive QRS complexes
4. measuring the size of the QRS complexes
Another name for lymph would be:
| 1. | Extra-cellular fluid | 2. | Tissue fluid |
| 3. | Plasma ultrafiltrate | 4. | Serous fluid |
During ventricular contraction in a cardiac cycle:
| 1. | the AV valves close earlier than the opening of semi lunar vales |
| 2. | the AV valves close earlier than the closure of semi lunar vales |
| 3. | the AV valves close later than the opening of semi lunar vales |
| 4. | the closure of AV valves and opening of semi lunar valves occur simultaneously |
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 |
Match each item in Column I with one in Column II and select the correct answer from the codes given:
| Column I | Column II | ||
| A. | Mitral valve | a. | Allows blood flow from left atrium to left ventricle |
| B. | Papillary muscles | b. | Does not allow back opening of AV valves during ventricular systole |
| C. | AV node | c. | Ensure all chambers do not contract simultaneously |
| D. | Fibrous band between atrial and ventricular muscle mass | d. | Ensures atria contract before ventricles |
Codes
| A | B | C | D | |
| 1. | a | b | c | d |
| 2. | b | a | c | d |
| 3. | b | a | d | c |
| 4. | a | b | d | c |
If the left ventricle fails to pump blood adequately to the body’s cells, it usually leads to:
| 1. heart block | 2. cardiac tamponade |
| 3. congestive heart failure | 4. cardiac arrest |
The autonomic regulation of cardiac activity is carried out by a neural center located in:
| 1. | Medulla oblongata | 2. | Hypothalamus |
| 3. | Cerebrum | 4. | Thalamus |
© 2025 GoodEd Technologies Pvt. Ltd.