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ASTIGMATISM
Astigmatism is a vision condition that occurs when the front surface of the eye, i.e., the cornea, is slightly irregular in shape. This irregular shape prevents light from focusing properly on ... |  |
 | COLOUR BLINDNESS
At the back of our eyes are located cones and rods. Cones pickup colours and Rods pickup brightness. There are blue cones, red cones and green cones. They pickup different wa... |
NIGHT BLINDNESS
Night blindness is a retinal abnormality and it is often associated with Retinitis Pigmentosa (RP). The effect is the deterioration of vision in low light environment. People with night blindne... |  |
 | VARICOSE VEINS
Varicose veins are gnarled, enlarged veins (blood vessels) close to your skin's surface. The word varicose comes from the Latin root varix, which means "twisted." Any vein may become varicose, ... |
HUMAN GENOME
A Genome is the sum of the entire DNA in an organism. The DNA includes genes, each of which carries some information for making certain proteins, which in turn determine physical appearance, ce... |  |
 | HUMAN IMMUNE SYSTEM
Immunology is the study concerned with the discovery of the mechanisms of the immune system, the development of vaccines, and the regulatory procedures for manipulating the immune response. |
PROTEIN SYNTHESIS
Prorein synthesis comprises of two main events a) Transcription b) Translation Transcription - The process in which a complemen... |  |
 | SICKLE CELL ANEMIA
When a sperm fertilizes an egg, it results in the combination of two sets of hereditary information, one from the mother and one from the father, to create a new organism which is unlike anythi... |
BIOLOGICAL CLOCK
Biological clocks help to keep our brains and bodies running on schedule. The body temperature, blood pressure, cardiovascular functions, activating the immunity system, bowl movement, sleep-wa... |  |
 | BLOOD CLOT
During an injury, blood vessels rupture and blood flows from the wound. A blood 'clot' is formed at the site of the damage to prevent bleeding and also the entry of micro-organisms from outside... |
EATING DISORDERS
Medical disorders characterised by chaotic patterns of eating are referred to as eating disorders. Patients with eating disorders usually suffer from physical or physiological problems. Eating ... |  |
 | BLOOD VESSELS
Blood is a fluid connective tissue and it circulates throughout the body in tubes called blood vessels. Blood vessels are of three types- artery, vein and capillary. An ar... |
VITAMIN DEFICIENCY DISEASES
Vitamins are organic substances required by the human body in minute quantities for normal growth and maintenance of health. Vitamins are not energy giving food but are essential to keep our bo... |  |
 | DOWN’S SYNDROME
Down’s syndrome is the most common chromosomal abnormality in human beings with an incidence of 1 in 750 births. Most children with Down’s syndrome show typical facial features with characteristic sl... |
AIDS
Acquired Immune Deficiency Syndrome or AIDS is caused by Human Immunodeficiency Virus (HIV) and this disease damages the immune system. HIV is a RNA virus and can only survive in body fluids. I... |  |
 | CANCER
Cancer is a disease characterized by uncontrolled cell proliferation, which results from mutation of growth regulating genes. Cancerous cells compete with normal cells for nutrients and ultimat... |
BLOOD GROUPS
Human blood may be differentiated into different groups on the basis of the presence or absence of particular antigens on the surface of the Red Blood Cells .The antigens are recognized by thei... |  |
 | SARS
Severe Acute Respiratory Syndrome or SARS is a viral respiratory illness detected for the first time around late 2002. SARS is believed to have originated in Southern China. The outbreak of thi... |
Genetic Counselling
Genetic counselling is a guidance service that provides information to couples on the nature of human genetic disorders, the risk of occurrence of a genetic disorder in the family, the problems... |  |
 | Alzeimers Disease
Alzheimer's disease is a progressive degenerative disease of the brain and is the most common form of 'dementia' illness. It is estimated that 12 million people world wide suffer from this dise... |
Human Skeleton
Human beings have an endoskeleton composed of 206 bones. The bones are rigid but the human skeleton is flexible and allows a wide range of movements. The skeleton provides a supporting framewor... |  |
 | Muscular System
The muscles of the body constitute the muscular system. Movement of the body is brought about by the contraction and relaxation of muscles. The term muscular tissue refers to all contractile tissue... |
Classes of Food
Food substances that are consumed by human beings may be classified into carbohydrates, fats, proteins, vitamins and mineral salts. Carbohydrates are organic substances that include glucose, fr... |  |
 | Digestive System
The digestive system is made up of the alimentary canal and associated glands such as the salivary glands, the liver and the pancreas. The alimentary canal is long tubular structure composed of the... |
Enzymes
Enzymes are biological catalysts present in the cells of living organisms that accelerate the rate of numerous chemical reactions taking place there. Enzymes are proteins that catalyze reaction... |  |
 | Teeth
Human beings grow two sets of teeth. The human baby is born toothless. The baby erupts its first tooth between the ages of six months to nine months. The first set of teeth is called the milk teeth... |
Joints
The junction where two separate bones articulate is called a joint. Joints give flexibility to a rigid skeleton and permit a range of movements determined by the type of joint. Joints are classifie... |  |
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