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Zoology MCQS[NEET-2021 to 2022]--Cardiovascular System

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1. This is the reason why the SA node acts as heart’s pacemaker




2. This about second heart sound is incorrect




3. The reason for the dicrotic notch on the aortic pressure curve is




4. Rise in the carotid sinus pressure leads to




5. Peripheral vascular resistance can be best given by




6. Duration of the absolute period, i.e., when the whole of heart is in diastole is




7. This sets glomerular capillary pressure apart from other capillaries found in the body




8.  The ventricular muscles accepts impulses directly from




9. This is the similarity between pulmonary and systemic circulation




10. On the heart, the impact of adrenaline is all of these except that




11. The branch of science deals with blood, blood forming tissues and its disorders is called___________




12. Out of the following, which one is NOT the physical characteristics of the blood?




13. Blood helps in transportation of the following components, except one, identify that?




14. Which of the following is NOT a plasma protein?




15. What is a serum in the blood?




16. Name the term which defines the amount of RBC present in the blood?




17. What is the site of hemopoiesis in an embryo?




18. Name the term given to abnormally low levels of white blood cells?




19.  Name the term given to the failure of bone marrow to produce RBC.




20. Which type of anemia is responsible for the disease thalassemia?




21. Which of the following membrane is responsible for the protection of the heart?




22.  ECG records electrical changes in which of the following layers of the heart, mark the correct option.




23. The first branch of the human aorta is




24. hepatic portal system originates from




25. The function of spleen in adults is




26. A person has blood group A means he / she has




27. A person has blood group B means he / she has




28. Extracellular fluids is rich in the following except




29. The velocity of flow in blood vessels is determined by




30. Left border of heart is formed by




31. Immunoglobulin which cross Placenta is




32. For blood clotting fibrinogen is changed into fibrin with the help of




33. Blood clot inside a blood vessel is known as




34. Thickest layer in the heart is




35. Does not open in right Atrium




36. Albumin is one of the plasma protein is synthesized in




37. What is the function of blood platelets




38. uterine artery is a branch of




39. Bleeding can be due to all of the following causes except




40. Hey Pathak portal system originates from




41.  The blood in the mammalian heart pumped by the right ventricle pass out of orifice which is guarded by




42. Peptic ulcer is most common to people of blood group




43. Splenic artery is a branch of




44. Universal Donor blood group of human beings is




45. Following substance are there buffering agents of human body except




46.  Blood grouping is important for




47. Aorta pierces the diaphragm at the level of 




48. A patient with high fever will most likely demonstrate the sign of




49.  Normally cardiac cycle takes … seconds to complete.