Identify the incorrectly matched pair:
1. | Plasma protein | – | 6 to 8 % |
2. | Formed elements | – | 55% of the blood |
3. | Hemoglobin | – | 12 to 16 gm in 100 ml of blood |
4. | Platelets | – | 150000 to 350000 mm-3 |
When anti B antibodies are present in the plasma and A antigens on the surface of RBCs of a person, her blood group can be:
1. | A and AB | 2. | Only A |
3. | Only B | 4. | O |
Inter-atrial septum in the human heart is:
1. | a thin muscular wall | 2. | a thick muscular wall |
3. | a thin membranous wall | 4. | a thick membranous wall |
The least common of WBCs in the human blood are:
1. | Eosinophils | 2. | Lymphocytes |
3. | Neutrophils | 4. | Basophils |
The enzyme that activates fibrinogens in the blood is:
1. | Thromboplastin | 2. | Thrombokinase |
3. | Thrombin | 4. | Plasmin |
Blood enters the heart because muscles of the:
1. | ventricles relax | 2. | ventricles contract |
3. | atria relax | 4. | atria contract |
The portal systems seen in humans include:
I: Hepatic portal system
II: Renal portal system
III: Hypothalamic Hypophyseal portal system
1. | I and II only | 2. | I and III only |
3. | II and III only | 4. | I, II and III |
The period of systole is represented on surface ECG as between:
1. Beginning of P wave and beginning of Q wave
2. End of S wave and beginning of T wave
3. Shortly after Q wave and end of the T wave
4. Two successive R waves
Which of the following can be called as a ‘cascade’ process?
1. | Micturition reflex |
2. | Formation of cross bridges in skeletal muscle contraction |
3. | Coagulation of blood |
4. | Regulation of respiration |
The deoxygenated blood from the cardiac muscles is returned to the right atrium by:
1. | coronary sinus | 2. | pre-caval vein |
3. | post-caval vein | 4. | pulmonary veins |