MIUN Free NEET Quiz Unit 5

1. Pectoral girdle is formed of one pairs of bones.

2. Pelvic girdle is formed of two halves.

3. PCT also helps to maintain the pH and ionic balance of the body fluids by selective absorption of hydrogen ions and ammonia into the filtrate and by secretion of HCO3– from it.

4. In a human being, movement of jaws and eyelids is an example of muscular.

5. Nearby the base of the heart diaphragm is present.

6. Each muscle fibre has many parallelly arranged myofibrils.

7. The action potential is conducted to the ventricular side by the AVN.

8. When interpulmonary pressure is slightly above the atmospheric pressure, this condition causes the expulsion of air from the blood.

9. Cross bridges are broken and the muscles relax.

10. The visceral nervous system is a part of the peripheral nervous system, whereas the peripheral nervous system is not a part of the visceral nervous system.

11. We have a well developed respiratory system comprising two lungs and associated air passages to perform this function.

12. Protoplasmic streaming, ciliary movements, movements of fins, limbs, wings, etc., are some forms exhibited by animals.

13. If an athlete is inspiring or expire 12000 ml of air per minute and breath rate is 12 per minute then the tidal volume is 1000 ml

14. Lymph types are not categorised to A, B, AB, and O.

15. Nephrons are multicellular structure.

16. Administering anti-Rh antibodies to the mother immediately after the delivery of the first child is an example of Passive Artificially Acquired Immunity

17. We have an incomplete single circulation, not a complete double circulation.

18. The brain is divided into two major parts: (i) the forebrain and (ii) the hindbrain.

19. Visceral nervous system comprises the whole complex of nerves, fibres, ganglia, and plexuses.

20. Between consecutive ‘I’ bands two ‘actin myosin overlap’ is there at the middle.

21. Receiving both water and electrolytes from the filtrate raises the osmolarity of medullary fluid as it descends deeper.

22. Animals haven’t evolved different mechanisms for oxygen transport or carbon dioxide removal; they simply absorb oxygen from the air.

23. In most of the vertebrates, excretory structures are simple tubular forms.

24. From the PNS, the somatic neural system transmits impulses to smooth muscles.

25. During atrial systole, the cuspid valves are open.

26. The action potential is conducted to the ventricular side by the the AVN and AV bundle.

27. A synapse is formed by the membranes of a pre-synaptic neuron and a post-synaptic neuron, which are always separated by a gap called the synaptic cleft.

28. In tissues with high pCO₂, carbon dioxide binds to blood, while in alveoli where pCO₂ is low and pO₂ is high, it is removed from the blood.

29. Oxygen is transported mainly as oxyhaemoglobin.

30. The clavicle laterally articulates with the manubrium of the sternum.

31. A person started running all of a sudden due to an emergency. The signal from the brain travels through efferent fibres.

32. Contraction of the diaphragm decreases the thoracic volume.

33. Between consecutive ‘I’ bands one ‘Z line’ is there at the middle.

34. Between consecutive ‘A’ bands one ‘actin myosin overlap’ is there at the middle.

35. Number of efferent arteriole is equal to the number of nephron in a human kidney.

36. All involuntary muscles are striated muscles, but all striated muscles are not involuntary muscles.

37. Ventricular systole decreases the atrial pressure.

38. Neurons, the functional units of neural system are excitable cells due to a differential concentration gradient of ions across the membrane.

39. In Paramoecium, cilia help in the movement of food.

40. The role of CO₂ in the regulation of respiratory rhythm is quite insignificant.

41. A very important part of the forebrain called hypothalamus controls the body temperature, eating and drinking.

42. Each myofibril contains many serially arranged units called sarcomere which are the functional units.

43. The ascending limb is impermeable to water but allows transport of electrolytes actively or passively.

44. The pulmonary circulation starts by the pumping of deoxygenated blood by the right ventricle which is carried to the lungs, where it is oxygenated and returned to the left atrium.

45. The descending limb of loop of Henle is impermeable to water and almost impermeable to electrolytes.

46. Cardiac musculature is auto-excitable.

47. The maximum volume of air a person can breathe out after a normal inspiration is known as Vital Capacity (VC).

48. The skeletal system is divisible into axial and appendicular.

49. These factors facilitate the diffusion of oxygen from the alveoli to deoxygenated blood and from oxygenated blood to tissues.

50. Outer to the hilum is a broad funnel shaped space called the renal pelvis.