12th Zoology

Bronchitis – Acute bronchitis, Chronic Bronchitis Causes


Bronchitis is the inflammation of the bronchi, the air ways that
connect the trachea (wind pipe) to the lungs, resulting in cough that may
produce considerable quantities of sputum (Phlegm). Two forms, of the
disease are recognized as acute bronchitis (sudden onset and short duration)
and chronic bronchitis (Persistent over a long period and recurring over
several years). Both are more common in smokers and in areas with high
atmospheric pollution.

Acute bronchitis :

It is caused by viral infection or by the effect of air
pollutants. Bacterial infection may cause acute bronchitis. Attacks occur more
often in winter. Smokers, babies, the elderly and people with lung diseases
are particularly susceptible.

Chronic Bronchitis :

It is a form of bronchitis in which sputum is coughed up on most days
for atleast three consecutive months. The disease results in narrowing and
obstruction of the air – ways in the lungs. It often coexists with another form
of lung disease, emphysema (widening of alveoli). Chronic bronchitis and
emphysema together are called chronic obstructive lung disease (COLD) or
chronic obstructive airways disease.

Causes :

Pollution and smoking are the causes of chronic bronchitis. It
stimulates the production of mucus in the lining of the bronchi.

Related Topics in Zoology:

Bio Zoology All Important Topics

  1. Human Physiology Introduction

  2. Nutrition

  3. Carbohydrates Poly hydroxyaldehydes (or) ketones

  4. Proteins (Polypeptides)

  5. Lipids

  6. Vitamins – Functions Of Vitamins

  7. Deficiency of Vitamin

  8. Minerals – Water – Role of water

  9. Balanced diet

  10. Obesity

  11. Digestive System

  12. Dental Caries (Tooth decay)

  13. Root Canal Treatment

  14. Peptic ulcer

  15. Hernia and Types

  16. Appendicitis (Appendix)

  17. Gall Stones

  18. Hepatitis

  19. Fractures – Types of fractures

  20. Mechanism of fracture

  21. Dislocation of joints

  22. Arthiritis

  23. Rickets and Osteomalacia – Orthopedics

  24. Muscles

  25. Mechanism of muscle contraction

  26. Types of muscle contraction

  27. Myasthenia Gravis

  28. Respiration – Process of pulmonary respiration

  29. Mechanism of Breathing

  30. Regulation of Respiration

  31. Pneumonia Tuberculosis Symptoms Treatment

  32. Circulatory System – Functioning of Human heart

  33. Cardiac Cycle

  34. Coronary blood vessel and its significance

  35. Myocardial infarction

  36. Angina pectoris

  37. Angiogram – Angioplasty

  38. Atherosclerosis

  39. Heart block Echo cardiography Heart Valves

  40. Rheumatic Heart Disease (RHD), ICCU – (Intensive Coronary Care Unit)

  41. Blood Pressure

  42. Heart transplantation

  43. Pulse rate

  44. Cardio Pulmonary Resuscitation (CPR)

  45. Blood – Composition of plasma – Blood cells

  46. Clotting of Blood or Haemostasis

  47. Thrombosis

  48. Nervous system Co-ordination systems

  49. The Brain – Fore Brain, Midbrain, Hindbrain

  50. Memory

  51. Sleep – Types of sleep

  52. Stroke – Brain haemorrhage

  53. Alzheimer – Meningitis (Brain fever)

  54. Conditioned reflex

  55. Electroencephalography EEG

  56. Right and Left brain concept

  57. Spinal cord functioning

  58. Chemical co-ordination – Functions of Endocrine glands

  59. Hypothalamus

  60. Pituitary gland – hormone

  61. Hormones of Neurohypophysis – vasopressin

  62. Thyroid gland

  63. Parathyroid Gland

  64. Pancreas

  65. Adrenal gland

  66. Gonads

  67. Receptor Organs – Eye

  68. Photochemistry of Retinal visual Pigments

  69. Errors of refraction

  70. Optometry – Retinopathy

  71. Cataract – Lens Replacement – Glaucoma – Nyctalopia

  72. Eye Infections and Eye Care

  73. Ear

  74. Mechanism of hearing

  75. Defects of the ear

  76. Hearing Aid – Noise pollution

  77. Skin and functions of skin

  78. Melanin functions

  79. Effects of solar radiation / UV radiation – Skin grafting

  80. Dermatitis

  81. Tongue – Mechanism of Stimulation

  82. Excretion Ureotelism Nephron

  83. Mechanism of urine formation

  84. Renal Failure, Dialysis, Kidney Machines

  85. Kidney stone – Kidney transplantation

  86. Diabetes mellitus

  87. Functioning of male reproductive system

  88. Functioning of female reproductive system

  89. Ovulation and fate of the ovum – Menstrual cycle

  90. Fertilization

  91. Birth control

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