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Our Body and Its Structure

Our body and its structure including nine organs which is so most important organs for our body



The composition of human body is very complex. Our body is made up of innumerable cells. Those cells are divided into several classes called tissues. Some tissues make up the outer surface of the body, some connect other tissues. Some tissues make muscles and some nerves. These groups of tissues are called organs. These organs can be strengthened or developed by organ operation or exercise. As you know, there are nine major organs in our body.

1. Skeletal system :

Its function is to make the structure of human body. It consists of many bones whose joints are joined together by interconnecting tissues. In this way man can operate his body. The spinal cord holds a special place in the human skeleton.

2. Muscular system :

Its function is to move the head, neck, arm, torso and legs etc. It is the transmission of blood and food. It also works by pushing the food into the tube. All the actions of our body are performed by this system.

3. Digestive system :

Its function is to digest food, which gives us energy.

4. Respiratory system :

Oxygen is required to get energy from digested food. This oxygen is obtained by this mechanism. Respiratory system also helps to expel carbon dioxide from our body.

5. Transmission system :

Through this system, the nutrients received from food and oxygen from air are transmitted throughout the body. All the cells of our body need these elements, they are circulated by blood. The blood, blood vessels and heart all three form the transmission system.

6. Excretory system :

Its function is to remove the waste material left in the body after use. The renal, ureter, and bladder together form the excretory system. (Urine and feces are excreted by this system.) Other organs also carry out excretory functions such as sweat from the skin and carbon dioxide from the lungs.

7. Reproductive system :

The organs that make up this system are different in men and women. The reproductive system of a man has penis and other organs and the reproductive system of a woman has ovaries and other organs.

8. Nervous system :

Its function is to control the work of various organs. Brain, spinal cord and nerve together form the nervous system.

9. Endocrine system :

'Endocrine' means the substances are mixed directly in the blood. These substances are called 'hormones'. These hormones are produced in specialized glands, called endocrine glands. These glands are also called ductless glands.