12th Zoology

Human Physiology Introduction

HUMAN PHYSIOLOGY

Introduction to Human Physiology

Physiology is the study of functioning of organs and organ systems. All physiological activities are aimed at maintenance of homeostasis,
living and reproduction.

Homeostasis differentiates a living being from the
non-living world. It provides the uniqueness for a self- duplicating,
genomicized groups of organisms.

Homeostatic mechanisms involve stabilizing an optimum level of water, minerals and other components of the body fluids and other thermal regulations. It is achieved by several bio-physical, bio-chemical processes, hormonal secretions and related metabolic modifications. (Human Physiology)

The phenomenon of living is made possible due to several types of
evolved organs and their well co-ordinated functions. The functioning of heart
as a pumping organ being emotionally controlled is astonishing.

The oxygen association and dissociation capabilities of blood pigments, cascading effects of minimal amount of hormones at molecular limits, the process of nervous conduction, analyzing and memory maintaining capacities of the brain,
the holistic visual perception of the eye are all wonderful inventions of nature
towards a simple process of living. (Human Physiology)

The attainment of a simplified process of sexual reproduction for a
complicated, genetically oriented mechanisms for sex cells production and
procreation is stunningly marvellous.

The orientation of reproductive strategies towards social, environmental and futuristic motives is highly precise and purposeful. Thus all the functionings of a living system are highly complicated mechanisms with a simple outlook.

In the forthcoming chapter an attempt has been made to highlight defects in functioning, remedial attempts and life-style modifications. Proper treatment of such an objective will result in a voluminous work. Yet, a simple attempt has been made to provide the information. (Human Physiology)

While going through the pages of this chapter, the learners may
recollect the human anatomy learnt in the previous class. Knowledge and
remembrance of anatomy will simplify an understanding of physiological
processes.

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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