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

Subtopic:  Human Heart: Double Circulation |
 52%
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Passive filling accounts for about what percent of ventricular filling?

1. 30 2. 50
3. 70 4. 90
Subtopic:  Human Heart: Double Circulation |
 69%
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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
Subtopic:  Blood: General Description & RBC |
 56%
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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

Subtopic:  ECG & Coronary Artery Disease |
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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

Subtopic:  Blood: Blood Clotting |
 93%
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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
Subtopic:  Human Heart: Double Circulation |
 65%
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Identify the incorrectly matched pair:
1. Average duration of a cardiac cycle: 0.8 sec
2. Stroke volume of each ventricle: 120 ml
3. Highest normal systolic blood pressure: 140 mm Hg
4. Highest normal diastolic blood pressure: 90 mm Hg

Subtopic:  Human Heart: Double Circulation |
 83%
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To begin the blood clot formation cascade, the enzyme complex required is:

1. Thromboxane A2 2. Thrombin
3. Thrombokinase 4. Heparin
Subtopic:  Blood: Blood Clotting |
 84%
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A person has type A antigen on RBC and anti-B antibodies in plasma. He can receive blood from a person with blood group:

1. A and O 2. AB, A, B and O
3. B and O 4. Only O
Subtopic:  Blood: Blood Group (A,B,O) | Blood: Blood Group |
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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
Subtopic:  Rhythmic Excitation of Human Heart: Part 1 | Rhythmic Excitation of Human Heart: Part 2 |
 60%
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