MIUN Free NEET Quiz Unit 5

1. The cerebrum is divided horizontally into two halves connected by the corpus luteum.

2. Below the acromion is a depression called the glenoid cavity, which articulates with the head of the humerus to form the shoulder joint.

3. Analysis of urine helps in clinical diagnosis of few genetic disorders also.

4. The Sino-atrial node (SAN) does not set the pace of the heart’s activities; it’s controlled by external factors.

5. The ascending limb is impermeable to water but does not allow transport of electrolytes actively or passively.

6. Vertebrates circulate blood, a fluid connective tissue, in their body, to transport essential substances to the cells and to carry waste substances from there.

7. The SA node is situated near the base of the heart.

8. During atrial systole, atria pumps lower fraction of blood to the ventricles.

9. Each minute a healthy adult produces 1 ml of urine (on average).

10. Nearby the base of the heart ventricular chambers are present.

11. As the medullary fluid receives water from the filtrate, its concentration progressively increases during its downward course.

12. Number of afferent arteriole is equal to the number of nephron in a human kidney.

13. Contraction of the diaphragm decreases the thoracic volume directly.

14. Along with the hypothalamus, limbic system is involved in the regulation of sexual behaviour, expression of emotional reactions (e.g., excitement, pleasure, rage and fear), and motivation.  

15. The contraction of external inter-costal muscles lifts up the ribs and the sternum, causing a decrease in the volume of the pulmonary chamber in the antero-posterior axis.

16. Visceral nervous system is the part of the peripheral nervous system that comprises the whole complex of nerves, fibres, ganglia, and plexuses by which impulses travel from the central nervous system to the viscera and from the viscera to the central nervous system.

17. The cardiac output is not equal to the product of stroke volume and heart rate.

18. Elements like flagella or cilia are involved in the amoeboid movement.

19. The action potential is conducted to the ventricular side by the AV bundle.

20. All locomotion are movement, but all movements are not locomotion.

21. Ammonia is the most toxic form and requires the least amount of water for its elimination.

22. The ventral, flat, triangular body of scapula has a slightly elevated ridge called the spine, which projects as a flat, expanded process called the coracoid.

23. The somatic neural system does not serve as the pathway through which the CNS sends impulses to skeletal muscles.

24. In Henle’s loop, as medullary fluid passes downward, it gets diluted due to passage of water to the filtrate.

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

26. The CNS consists of the brain and spiral cord.

27. Solid, liquid, and air can pass through the pharynx.

28. Kidneys are situated between the levels of last thoracic and third lumbar vertebra close to the dorsal outer wall of the abdominal cavity.

29. The action potential is delivered to the ventricular muscles by the bundle of His.

30. 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.

31. Contraction of the diaphragm increases the pulmonary volume indirectly.

32. Chemoreceptors for respiration regulation are only present in aortic arch.

33. RBC respires only aerobically.

34. Double walled cup-like structure called Bowman’s capsule is a part of renal tubule.

35. In healthy individuals the selective reabsorption rate is 124ml per minute.

36. Atrial diastole is coinciding with ventricular systole.

37. The spaces between cells in the tissues contain a fluid derived from blood called tissue fluid.

38. Podocytes are the epithelial cells of Bowman’s capsule.

39. Between consecutive ‘I’ bands one ‘Z zone’ is there at the periphery.

40. The AV node passes through the AV septa.

41. The process of excreting ammonia is Ammonotelism.

42. Motor neurons transmit signals to muscle fibers, triggering a cascade of events leading to muscle contraction through the sliding of actin and myosin filaments.

43. The somatic neural system does not relay impulses from the PNS to visceral organs. 

44. Sarcomeres consist of thick myosin filaments and thin actin filaments, with regulatory proteins like troponin controlling their interaction.

45. In human beings, the majority of the nephrons, the loop of Henle is too short and extends very little into the medulla.

46. Blood is composed of a solid matrix, not a fluid matrix.

47. Relaxation of the diaphragm increases the pulmonary volume directly.

48. Chordates are having closed circulatory system only.

49. The process of excreting uric acid is ureotelism.

50. Pelvic girdle is formed of two pairs of bones.