2Major FunctionsThe major functions of the Respiratory system are to gather oxygen and to dispose of carbon dioxide. Carbon dioxide is what the plants need to live. Some other functions of this system are to help produce sound.
3PartsLungs: The lungs are in your chest, protected by your rib cage. They are the main organ of this system.Vocal Cords: The vocal cords produce sound with the help of the larynx. Sound is produced when wind rubs against the cords.Diaphragm: The diaphragm is located under the lungs. It is a parachute shaped muscle that contracts when you breath in.
4PartsTrachea: The trachea is also known as the wind pipe. It filters air and push it to bronchi.Epiglottis: The epiglottis is the flap of tissue at the top of the trachea. It is open during respiration.Larynx: The larynx is also known as the voice box. It produces sound with the help of the vocal cords.
5Diagram pharynx larynx Nose epiglottis trachea Bronchus Lungs lungs bronchiolesLungslungsdiaphragm
6The Breathing ProcessFrom your nose, air moves to the lungs through the trachea. The trachea branches into bronchial tubes, which continue to branch into smaller and smaller tubes. The smallest tubes called bronchioles. In the lungs bronchioles end at tiny sacs, called alveoli. Capillaries cover the alveoli. It is in the alveoli that oxygen enters then the blood and carbon dioxide is removed. This is how your Respiratory system works.
7How the systems work together The Respiratory system gets oxygen into the Circulatory system that takes the oxygen, through the blood stream, to other parts of the body. The Respiratory system takes the oxygen needed for the body from the outside of the body and brings it into the lungs where it is diffused through the lungs into the blood stream.Most of the Respiratory system is lined with membranes that contain mucosal-associated lymphoid tissue. This tissue is part of the lymphatic system which is an essential part of the immune system because it produces immune cells.This system also works with the nervous system because the brain controls your breathing rate. The Respiratory system supplies the brain and other organs with oxygen.
8Facts The right lung is slightly larger than the left. Hairs in the nose help to clean the air we breathe as well as warming it.The highest recorded "sneeze speed" is 165 km per hour.The surface area of the lungs is roughly the same size as a tennis court.The capillaries in the lungs would extend 1,600 kilometers if placed end to end.We lose half a liter of water a day through breathing. This is the water vapor we see when we breathe onto glass.A person at rest usually breathes between 12 and 15 times a minute.The breathing rate is faster in children and women than in men.
9Resources www.warriors.warren.k12.il.us the science textbook