Q. No.
The tricuspid and bicuspid [mitral] valves are supported by strong fibrous strings called:
1. pectinate muscles
2. chordae tendineae
3. cardiac fibers
4. endocardium
1. pectinate muscles
2. chordae tendineae
3. cardiac fibers
4. endocardium
What causes the flow of lymph in the lymphatic vessels from the interstitium to the veins?
1. residual blood pressure forcing the plasma through the blood vessels
2. suction from the contracting lymph nodes
3. skeletal muscle contraction and the action of one-way valves
4. active transport of lymph by cilia lining the lymphatic system
What is true regarding the lymphatic system?
| 1. | A two-way transport system with fluids and cells moving in both directions |
| 2. | A continuous closed circulation running parallel to the arteries and veins |
| 3. | A one-way system collecting the lymph from body tissues and spaces and reintroducing it to the bloodstream |
| 4. | A one-way system collecting lymph from body spaces and soaking it into the body cells |
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The major lymphatic ducts in the human body return the interstitial fluid to the blood by opening into:
1. abdominal aorta
2. inferior vena cava
3. right atrium
4. subclavian veins
An abnormal accumulation of fluid in the interstitium, located beneath the skin and in the cavities of the body is called as:
1. Tumor
2. Diverticulum
3. Autoimmune disease
4. Edema
During the isovolumetric contraction of the ventricles:
1. Pressure in the ventricles is decreasing
2. The volume of blood in the ventricles is decreasing
3. The ventricles are completely closed chambers
4. The blood in the atria is moving into the ventricles
Identify the state in which the atria and the ventricles are when most of the ventricular filling occurs:
| 1. | Both the atria and ventricles are in systole |
| 2. | The atria are in diastole and the ventricles are in systole |
| 3. | Both the atria and ventricles are in diastole |
| 4. | The atria are in systole and the ventricles are in diastole |
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A normal hematocrit value of 45 means that ________________.
1. 45% if the formed elements are erythrocytes
2. there are 45 million formed elements per ml of whole blood
3. 45% of the total blood volume is formed elements
4. 45 ml of plasma are tested by centrifugation
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The type of antigen on the surface of RBC and the type of antibodies in plasma of person with genotype would respectively be:
| 1. B; anti B | 2. A; anti B |
| 3. A; anti A | 4. B; anti A |
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Identify the incorrect statement regarding the hemolytic disease of the newborn:
| 1. | The fetus is Rh positive, and the mother is Rh negative. |
| 2. | The mother's immune system has made antibodies against the Rh factor present on the red blood cells of the previous baby. |
| 3. | The baby is born with an abnormally high number of red blood cells. |
| 4. | This can be prevented if the Rh negative mother has been given RhoGAM (antibodies). |
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