The risk of the fetus developing hemolytic disease of the new born is present in:
1. any Rh+ fetus
2. second Rh- fetus of Rh+ mother
3. second Rh+ fetus of Rh- mother
4. Rh- mother

Subtopic:  Blood: Blood Group |
 80%
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The volume of blood being pumped by the heart, in particular by the left or right ventricle, per unit time is called as:

1. stroke volume 2. end-diastolic volume
3. ejection fraction 4. cardiac output
Subtopic:  Human Heart: Cardiac Cycle |
 64%

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QRS complexes on the ECG tracings show that:
1. The atria are depolarizing.
2. The ventricles are depolarizing.
3. The ventricles are repolarizing.
4. The heart is at rest.

Subtopic:  ECG & Coronary Artery Disease |
 91%
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The aortic semilunar valve prevents blood from returning to the _____.

1. left ventricle 2. aorta
3. right ventricle 4. left atrium
Subtopic:  Human Heart: Cardiac Cycle |
 70%
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In the nodal tissue of the human heart the last to get activated is/are:
1. SA node
2. AV node
3. AV bundle
4. Purkinje fibers

Subtopic:  Human Heart: Gross Anatomy |
 78%

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The central cardiac control region is in the _____ of the brain.

1. hypothalamus 2. medulla oblongata
3. cerebellum 4. pons
Subtopic:  Regulation of Cardiac Activity |
 83%
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Heart murmurs are heart sounds produced when blood flows across one of the heart valves that are loud enough to be heard with a stethoscope. A common cause would be:
1. smoking which weakens the action of the valve
2. ineffective valves allowing blood to leak back through the valve
3. stress from higher blood pressure
4. ineffective signals from the AV node

Subtopic:  Human Heart: Cardiac Cycle |
 62%

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Blood pressure is the pressure of blood against:
1. the left ventricle
2. the tissue of the organs
3. the capillaries of the lung
4. the wall of a blood vessel

Subtopic:  Atherosclerosis, Hypertension & Ventricular Fibrillation |
 80%

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Pulmonary veins return the oxygenated blood from the lungs to:

 
1. right atrium 2. left atrium
3. right ventricle 4. left ventricle
Subtopic:  Human Heart: Double Circulation |
 83%
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Erythrocytes in humans are destroyed mainly in:

 
1. liver and spleen 2. heart and lungs
3. bone marrow 4. kidney
Subtopic:  Blood: General Description & RBC |
 94%
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