Under normal physiological conditions a higher cardiac output can be achieved by a higher:
1. extracellular K+ concentration
2. blood pressure in the systemic circulation
3. venous return
4. parasympathetic tone

Subtopic:  Human Heart: Cardiac Cycle |

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Vagotomy [cutting of vagus nerve] would lead to:
1. reduced heart rate
2. increased heart rate
3. reduced strength of contraction
4. increased secretion of acetylcholine

Subtopic:  Regulation of Cardiac Activity |

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The cardiovascular system is located in:
1. cerebral cortex
2. thalamus
3. basal nuclei
4. medulla oblongata

Subtopic:  Regulation of Cardiac Activity |
 87%

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The liquid portion of the blood with fibrinogen and some of the clotting proteins removed is
1. plasma.
2. platelets.
3. plasma proteins.
4. serum

Subtopic:  Blood: General Description & RBC |
 76%

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Pernicious anemia is an example of
1. hypochromic anemia.
2. nutritional anemia.
3. hemorrhagic anemia.
4. hemolytic anemia.
 

Subtopic:  Blood: General Description & RBC |
 60%

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Identify the incorrectly matched pair:
1. nutritional anemia – cynocobalamin deficiency
2. eosinophilia – worm infestations
3. hemorrhagic anemia - large blood loss
4. thrombocytopenia - greatly increased platelets

Subtopic:  Blood: General Description & RBC |

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What cells remove the old, damaged, or defective erythrocytes from the blood?
1. NK cells.
2. Dendritic cells.
3. macrophages.
4. monocytes.

Subtopic:  Blood: White Blood Cells |
 66%

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All the following statements regarding coagulation of blood are correct except:
1. Prothrombinase catalyzes the breakdown of prothrombin to thrombin.
2. Thrombin catalyzes the conversion of fibrinogen to fibrin.
3. Antithrombin inactivates thrombin.
4. Heparin causes fibrinolysis.

Subtopic:  Blood: Blood Clotting |

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Identify a very important thrombolytic amongst the following:
1. warfarin
2. heparin
3. oxalates and citrates
4. t-PA

Subtopic:  Blood: Blood Clotting |

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Which of these statements about the ABO blood group is NOT true?

1.  A person with type O blood can donate blood to individuals with type A, B, AB, or O blood types.
2.  Transfusions should be made considering the plasma of the donor and the erythrocytes of the patient (recipient).
3.  A person with type A blood should not receive a transfusion from someone with type AB blood.
4.  A person with type O blood has both the A and B antigens.
Subtopic:  Blood: Blood Group (A,B,O) |
 76%
From NCERT

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