A person with AB blood group:
1. Has A and B antigens in his plasma
2. Lacks any antibodies on RBC surface
3. Can receive blood transfusion from a person of his own group.
4. Can donate blood to all other group recipients
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe inter-atrial septum in the human heart can be best described as:
1. A thin muscular wall
2. A thick muscular wall
3. A thin fibrous tissue
4. A thick fibrous tissue
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe sino-atrial node is the normal pacemaker of the human heart because:
1. It is located in the right atrium
2. It is the only part of the conducting system that can generate impulse
3. It can generate the maximum number of action potentials in the conducting system
4. It produces action potentials that are more in size than the other parts of the conducting system.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhat percentage of ventricular filling is achieved by atrial contraction?
1. 30
2. 50
3. 70
4. 90
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn a surface ECG the QRS complex represents:
1. Atrial depolarization
2. Atrial repolarization
3. Ventricular depolarization
4. Ventricular repolarization
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyNormal activities of the human heart are regulated:
1. Intrinsically
2. By the autonomic nervous system
3. By the brain stem
4. By the diencephalon
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA common symptom produced by myocardial ischemia is:
1. Hypertension
2. Vertigo
3. Angina
4. Hyperventilation
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe steps of the cardiac cycle in sequence are...
1. isovolumic contraction, isovolumic relaxation, ejection, passive ventricular filling, active ventricular filling.
2. isovolumic relaxation, isovolumic contraction, ejection, passive ventricular filling, active ventricular filling.
3. isovolumic contraction, ejection, isovolumic relaxation, passive ventricular filling, active ventricular filling.
4. isovolumic contraction, ejection, isovolumic relaxation, active ventricular filling, passive ventricular filling
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA decrease in plasma albumin levels is likely to affect:
1. Clot formation
2. Oxygenation of hemoglobin
3. Osmotic balance
4. Immune functions
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following is a correct statement:
1. The volume of blood in pulmonary circulation is more than the volume of blood in systemic circulation at any instant
2. The blood pressure in pulmonary circulation is less than that of the systemic circulation
3. Double circulation is characteristic of all vertebrates
4. A double aortic arch is seen in birds and mammals
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology