Presentation on theme: "The Respiratory System"— Presentation transcript:
1 The Respiratory System In this lesson, you will Learn About…The parts of the respiratory system.How the breathing process works.Illnesses that can damage the respiratory system.
2 The Respiratory System The Vocabulary terms in this lesson are:Respiratory system.Trachea.Bronchi.Diaphragm.Click each term to display its definition.
3 Oxygen for LifeYour body cannot survive without the oxygen you take in every time you take a breath.The respiratory system is a set of organs that supplies the body with oxygen and rids the body of carbon dioxide.
4 Parts of the Respiratory System Nose/MouthPassages forair; nose linedwith cilia (tiny hairlike projections)EpiglottisFlap of tissue in back of mouth that covers the trachea to prevent food from entering itBronchiTwo tubes that branch from the trachea; one tube leads to each lungTracheaTube in throat that takes air to and from lungs. Also called the windpipeThe cilia in the nose are tiny hairlike projections that trap dirt and particles from the air. The trachea is also called the windpipe.LungsTwo large organs that exchange oxygen and carbon dioxideDiaphragmLarge dome-shaped muscle below the lungs that expands and relaxes to produce breathing
5 How Breathing Works Breathing consists of three main stages: When you inhale, you take air into your lungs.Inside the lungs, oxygen from the air enters the bloodstream and replaces the carbon dioxide that must leave your body.When you exhale, you breathe out the carbon dioxide.Visit the following link to provide students with more information on respiration.
6 The Breathing Process 3 Exhaling 1 Inhaling 2 Inside the Lungs The bronchi divide into smaller passages called bronchioles. Air passes through the bronchioles into the alveoli, which are surrounded by capillaries. Here the oxygen in the air moves into your bloodstream, and carbon dioxide from the blood enters the alveoli.Your diaphragm moves down and your rib cage expands, creating more room in your chest. This causes air to rush into your body. The air enters through the nose or mouth, then moves past the epiglottis and intothe trachea and bronchi.2 Inside the LungsBronchioleAlveoliPulmonary arteryPulmonary veinCapillariesYour diaphragm pushes up, and your ribs move in and down, forcing air out of your lungs. The air, now containing carbon dioxide, moves back through the bronchioles and bronchi, up the trachea, and out through the nose or mouth.
7 Problems of the Respiratory System The following factors can easily damage the many complex parts of the respiratory system:GermsTobacco smokeInhaled chemicalsEnvironmental pollution
8 Problems of the Respiratory System (cont’d.) Diseaseor DisorderDescriptionTreatmentDiseases caused by viruses; symptoms include runny nose, cough, fever, achesBed rest and fluids; vaccines can prevent some types of fluCold/FluBacterial or viral disease that affects the lungs; symptoms include fever, chest pain, breathing difficultyPneumoniaAntibiotics forbacterial type; bedrest for viral typeAsthmaDisease in which airways narrow; symptoms include wheezing, shortness of breath, coughingMedication to relieve symptoms; avoiding activities or substances that trigger attacks
9 Problems of the Respiratory System (cont’d.) Disease orDisorderDescriptionTreatmentBacterial disease that affects the lungs; symptoms include cough, fatigue; can be fatalAntibioticsTuberculosisEmphysemaDisease in which alveoli harden and disintegrate; symptoms include extreme difficulty breathing; almost entirely caused by smokingNo known cure;pure oxygen canmake breathingeasierUncontrolled growthof cells that produceabnormally in lungs;often caused by smokingSurgery, radiation,and medication;Survival rates arevery lowLung Cancer
10 Caring for Your Respiratory System Here are some simple tips to care for your respiratory system:Do not smoke.Avoid people and situations that would expose you to tobacco smoke in the air.Take care of your body when you have cold, flu, or any other respiratory illness.When a person who has a cold sneezes, the discharge is full of live viruses which can live for as long as 3 hours on surfaces & skin. You can inhale the viruses without realizing it. So, if you touch the skin of a person who has a cold or another surface that they have touched, then the viruses can be transmitted to your own nose if you touch your face.
11 Reviewing Terms and Facts The _______________ is a set of organs that supplies your body with oxygen and rids your body of carbon dioxide.respiratory systemClick to show the correct answer.
12 Reviewing Terms and Facts List the parts of the respiratory system through which air passes when you inhale.Nose/MouthTracheaBronchiLungsClick to show the correct answer.
13 Thinking CriticallyHow do cilia and the epiglottis protect the respiratory system?Cilia trap dirt and particles from the air andprevent them from entering the respiratorysystem. The epiglottis covers the trachea toprevent food from entering it.Click to show the correct answer.
14 Vocabulary ReviewThe respiratory system is a set of organs that supplies the body with oxygen and rids the body of carbon dioxide.Click the slide to go back to the Vocabulary Review home page.
15 Vocabulary ReviewThe trachea is a tube in the throat that takes air to and from lungs.Click the slide to go back to the Vocabulary Review home page.
16 Vocabulary ReviewThe bronchi are two tubes that branch from the trachea; one tube leads to each lung.Click the slide to go back to the Vocabulary Review home page.
17 Vocabulary ReviewThe diaphragm is a large dome-shaped muscle below the lungs that expands and relaxes to produce breathing.Click the slide to go back to the Vocabulary Review home page.