12th Zoology

Kidney stone – Kidney transplantation

Kidney stone and Kidney transplantation

Kidney stone (Calculus)

Stone formation in the kidneys, Ureters or Bladder, is caused by the
precipitation from the solution of the substances in urine. Kidney and Ureter
stones are more common than Bladder stones.

The incidence of stone formation is highest in summer months as the urine is more concentrated due the loss of fluid in the sweat.

The stones tend to be a recurrent problem. Chronic dehydration is the main cause for kidney stones. Kidney stone consists mainly of calcium oxalate and/or phosphate.

Stone consists mainly of uric acid and may occur in people with GOUT.
Bladder stone usually develops as a result of a diet that is low in
phosphate and protein.

The most common symptom of a stone in the kidney or ureter is renal cholic (a severe pain) and the symptom for the bladder stones manifest with difficulty in passing urine.

Stones in the bladder and lower ureter can be crushed and removed by cystoscopy or by ureterorenoscopy. The first line of treatment is lithotripsy which disintegrates stones by focusing shock waves on them from outside the body.

Kidney transplantation

Kidney transplantation refers to an operation in which a diseased
kidney is replaced by a transplanted healthy kidney, either from a living
donor or from a person who has just died (cadaver). One healthy donor
kidney is sufficient to maintain the health of the recipient.

Factors in improving the results of transplant surgery are

(1) To prevent rejection, effective immune suppressant drug treatment is given.
(2) Tissue typing is necessary to help in matching recipient and donor tissue
for transplant surgery thus minimizing the risk of rejection of a donor organ
by the recipient’s immune system.
(3) After removal of organ from the donor it should be washed with an
oxygenated fluid and cooled. This reduces the risk of damage.

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. Bronchitis – Acute bronchitis, Chronic Bronchitis Causes

  33. Circulatory System – Functioning of Human heart

  34. Cardiac Cycle

  35. Coronary blood vessel and its significance

  36. Myocardial infarction

  37. Angina pectoris

  38. Angiogram – Angioplasty

  39. Atherosclerosis

  40. Heart block Echo cardiography Heart Valves

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

  42. Blood Pressure

  43. Heart transplantation

  44. Pulse rate

  45. Cardio Pulmonary Resuscitation (CPR)

  46. Blood – Composition of plasma – Blood cells

  47. Clotting of Blood or Haemostasis

  48. Thrombosis

  49. Nervous system Co-ordination systems

  50. The Brain – Fore Brain, Midbrain, Hindbrain

  51. Memory

  52. Sleep – Types of sleep

  53. Stroke – Brain haemorrhage

  54. Alzheimer – Meningitis (Brain fever)

  55. Conditioned reflex

  56. Electroencephalography EEG

  57. Right and Left brain concept

  58. Spinal cord functioning

  59. Chemical co-ordination – Functions of Endocrine glands

  60. Hypothalamus

  61. Pituitary gland – hormone

  62. Hormones of Neurohypophysis – vasopressin

  63. Thyroid gland

  64. Parathyroid Gland

  65. Pancreas

  66. Adrenal gland

  67. Gonads

  68. Receptor Organs – Eye

  69. Photochemistry of Retinal visual Pigments

  70. Errors of refraction

  71. Optometry – Retinopathy

  72. Cataract – Lens Replacement – Glaucoma – Nyctalopia

  73. Eye Infections and Eye Care

  74. Ear

  75. Mechanism of hearing

  76. Defects of the ear

  77. Hearing Aid – Noise pollution

  78. Skin and functions of skin

  79. Melanin functions

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

  81. Dermatitis

  82. Tongue – Mechanism of Stimulation

  83. Excretion Ureotelism Nephron

  84. Mechanism of urine formation

  85. Renal Failure, Dialysis, Kidney Machines

  86. Kidney stone – Kidney transplantation

  87. Diabetes mellitus

  88. Functioning of male reproductive system

  89. Functioning of female reproductive system

  90. Ovulation and fate of the ovum – Menstrual cycle

  91. Fertilization

  92. Birth control

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