This document summarizes lymphoid organs and cells involved in the immune system. It discusses the bone marrow, thymus, lymph nodes, spleen, and peripheral lymphoid tissues. It also describes the cellular elements like lymphocytes, phagocytes, and effector cells. The humoral elements discussed are immunoglobulins, complement, cytokines, and cluster of differentiation antigens. Finally, it outlines different types of immunity including immediate hypersensitivity, antibody-dependent cytotoxicity, immune complex mediated injury, and T-cell mediated delayed hypersensitivity.

1. IMMUNOLOGY DR. MA. TERESA S. FAJARDO PEDIATRICS HEMATOLOGY/ ONCOLOGY

3. THYMUS

4. LYMPH NODES

5. SPLEEN

10. ASPLENIC PATIENTS ARE ALREADY RENDERED SUSCEPTIBLE TO INFECTION BY ENCAPSULATED BACTERIA

16. LARGE GRANULAR LYMPHOCYTES

17. 5 % of THE PERIPHERAL BLD LYMPHOCYTES

23. MAST CELLS

26. CARRY FC RECEPTORS FOR I g E

27. INCREASED NUMBER OF IgE MOLECULES IN ALLERGIC PATIENTS

29. COMPLEMENT

30. CYTOKINES

32. PENTAMER

33. LARGEST Ig

35. CAN TRAVERSE THE PLACENTAL BARRIER

36. VITAL ROLE IN THE DEFENSE OF NEWBORN AGAINST INFECTION

44. URTICARIA

45. ALLERGIC RHINITIS

46. ALLERGIC CONJUNCTIVITIS

47. ALLERGIC ASTHMA

49. ERYTHROBLASTOSIS FETALIS

50. ACQUIRED HEMOLYTIC ANEMIA

51. THROMBOCYTOPENIA

52. GOODPASTURE ‘ S SYNDROME

53. GRAFT REJECTION

54. NEUTROPENIA AND CHRONIC KERATITIS

56. POLYARTERITIS NODOSA

57. POST- STREPTOCCOCAL GLOMERULONEPHRITIS

58. ARTHUS REACTION

59. RHEUMATOID ARTHRITIS

60. SLE

62. AUTOIMMUNE DISEASES

63. CONTACT ALLERGIC DERMATITIS

64. SYPHILIS

65. LEPROSY