Human Organs

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Human Organs

  1. 1. Human Organs and their functions By shreyas kolte
  2. 2. Contents <ul><li>Introduction </li></ul><ul><li>Brain and nerves (nervous system) </li></ul><ul><li>Lungs (and other parts of respiratory system) </li></ul><ul><li>Heart ( and other parts of circulatory system) </li></ul><ul><li>Stomach (and other parts of digestive system) </li></ul><ul><li>Kidneys (and other parts of excretory system) </li></ul><ul><li>Bones and muscles (skeletal and muscular system) </li></ul>
  3. 3. Introduction <ul><li>this presentation gives information about some human organs. </li></ul>
  4. 4. Nervous system <ul><li>The nervous system consists of the brain, the spinal cord and the nerves. the brain is attached to the nerves by the spinal cord. </li></ul><ul><li>The brain sends messages to our body through nerves. it is the computer of our body. </li></ul><ul><li>There are three main parts of the brain. They are: Cerebrum, Cerebellum and medulla oblongata. </li></ul><ul><li>There are about 50,00,000 nerves in the body! </li></ul>
  5. 5. Respiratory system <ul><li>The respiratory system consists of the lungs, windpipe and the noselpipe.It is the breathing system. </li></ul><ul><li>We breathe in oxygen and leave out carbon di-oxide. </li></ul><ul><li>The left lung is smaller than the right lung. </li></ul><ul><li>oxygen is also known as living gas as for living we breathe in oxygen. </li></ul>
  6. 6. Circulatory system <ul><li>The circulatory system consists of the heart, arteries and veins ( blood vessels). </li></ul><ul><li>The heart pumps blood through the blood vessels to different parts of our body. </li></ul><ul><li>The arteries carry blood from the heart to different parts of our body, while the veins different parts of our body to the heart. </li></ul><ul><li>There is about 6-7 litres of blood of blood in an adult human body. </li></ul>
  7. 7. Digestive system <ul><li>The digestive system consists of the tongue, teeth, esophagus, stomach, liver, pancreas, intestines, appendix, and rectum. It digests our food. </li></ul><ul><li>the tongue has a juice called Saliva, which converts starch into sugar. </li></ul><ul><li>The teeth chew it into pieces. </li></ul><ul><li>Then through the esophagus the food goes to the stomach. </li></ul><ul><li>In the stomach it is convert it into semi-liquid form. </li></ul><ul><li>Then in the liver and pancreas, digestive juices are added to it. </li></ul><ul><li>After that they go to the intestines where the food that is to be used and the food that is to be wasted is separated. </li></ul><ul><li>Then, the food that is to be wasted goes out through the rectum. this is the process of digestion. </li></ul>
  8. 8. Excretory system <ul><li>The excretory system consists of the kidneys, sweat glands and the lacrimal(tear gland). </li></ul><ul><li>It throws out the waste out of our body.eg.sweat </li></ul><ul><li>The kidneys are known as filters of our body. they filter the blood and throw the waste out of the body in the form of urine. </li></ul><ul><li>The sweat glands and the lacrimal gland throw out waste in the form of tears and sweat. </li></ul>
  9. 9. Skeletal and Muscular system <ul><li>The skeletal and muscular system consists of the bones and the muscles. </li></ul><ul><li>The frame of bones is called the skeleton. there are about 206 bones in our body. they give a proper shape to our body. </li></ul><ul><li>The long, thick strings attached to our are to the bones are called muscles. there are about 605 muscles in our body. they help us to move. </li></ul>

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