The group of organs responsible for the ingestion of food, its digestion, absorption and egestion of undigested wastes from the body is called digestive system. The Digestive system contains organs associated with chewing, swallowing, absorbing and breaking down the food into simpler substances. Digestion is assisted by different enzymes, juices and hormones which are secreted by different organs and glands.
The urinary system means the discharge of liquid waste along with the solvable toxins and unnecessary materials in the form of urine. It is the important part of our excretory system. This note gives the information about the urinary system, organs of urinary system like kidney, ureters, urinary bladder, urethra and also gives the information about the process of urine formation.
The skeletal system is that system which is composed of different sizes and shapes of bones.In this note, we have discussed the skeletal system,function of bone,types of bone on the basis of size joints and types of movable joints.
Respiration is the process that starts with inhaling fresh oxygenated air. It is a vital process in which oxygen is inhaled to oxidize the food for the release of energy and removal of carbon-dioxide gas. The process of respiration continues non-stop from birth to death of a person. The rate of breathing increases, when we are playing, walking, working, reading, writing, thinking and so on. The normal rate of respiration for a healthy adult is about 16 times per minute.
The muscular system is an organ system consisting of skeletal, smooth and cardiac muscles. It is the system made up of muscles. This note gives the information about the muscular system and its functions and types of muscles found in the human body.
Nutritions are essential elements necessary for growth and maintenance of the body. They are the chemical substances found in our food. Similarly, the Chemical substances and essential materials found in our food are called Nutrients. It has the unique functions in our body. A healthy, balanced diet is an important part of maintaining good health. The appropriate amount of carbohydrates, proteins, fats vitamins, minerals and water are needed for the proper balanced diet. The food that is high in calories but low in nutritional content is known as Junk food. Junk foods are not good for our health because it contains high amounts of fat or sugar.
According to public understanding, health is view as the absence of diseases or infirmity in the body of an individual.The definition of Personal health is the science to achieve a positive health by individual purpose and activities in terms of physical,mental and social aspects.In this note, we have discussed Personal health, Our body healthy,Methods of keeping our body healthy,Care of eyes,ears and nose, and also Nutrition status and body mass index (BMI)etc.