Lungs Presentation


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A short presentation of the respiratory system

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  • Lungs Presentation

    1. 1. Lung • By Nesha Radojevic • Bio120 • Rashida Abdullah
    2. 2. What are your lungs? • Your lungs are part of a group of organs and tissues that all work together to make you breathe. This system is called the respiratory system.
    3. 3. Where are your lungs? • The human lungs line and enclose the heart and great vessels in the chest cavity above the diaphragm
    4. 4. What do they do? • The main job of the lungs and respiratory system is to move fresh air into and get waste gases out of the body. A process called respiration
    5. 5. Respiration describes two processes: 1. Internal or cellular respiration is the process by which glucose or other small molecules are oxidized to produce energy: this requires oxygen and generates carbon dioxide. 2. External respiration (breathing) involves simply the stage of taking oxygen from air and returning carbon dioxide to it.
    6. 6. Non respiratory functions: • alter the pH of blood • filter out small blood clots formed in veins • filter out gas micro-bubbles occurring in the venous blood stream(exp. while scuba diving) • influence the concentration of some biologic substances and drugs used in medicine in blood • may serve as a layer of soft, shock-absorbent protection for the heart, which they enclose • protect the body from harmful substances by coughing, sneezing, filtering or swallowing them
    7. 7. • Inhalation • When you breathe in, your diaphragm contracts (tightens) and moves downward. This increases the space in your chest cavity and lungs expand. The intercostal muscles contract to pull your rib cage both upward and outward when you inhale. This allows you to suck air trough your nose and mouth. It then goes down your windpipe and into your lungs. This air is fresh and full of oxygen. • Exhalation • When you breathe out, your diaphragm relaxes and moves upward into the chest cavity. The intercostal muscles also relax to make the chest cavity smaller in size. As the chest cavity gets smaller, air rich in carbon dioxide is forced out of your lungs and windpipe, and then out of your nose and mouth. When you exercise, diaphragm goes even more against your lungs. This pushes the air out faster.
    8. 8. This is how your breathing looks like
    9. 9. Keep your lungs healthy Taking good care of yourself every day will help keep your lungs healthy Practice good eating habits, like eating a well balanced diet. Prepare your own food. You will know what you eat! – Learn what you can do to prevent bacteria, viruses, tobacco smoke and air pollution from causing harm. – Practice Yoga regularly – Get Massage Therapy regularly – Exercise, hike and play sports for fun
    10. 10. Warning signs of lung disease • Cough that will not go away • Shortness of breath • Wheezing Any of these may be signs of lung disease. Learn more what you can do to prevent this from happening. Consult a physician if any of these signs persist.
    11. 11. Most common lung diseases: • Asthma is a chronic lung disease characterized by inflammation of the bronchi and bronchioles • Chronic obstructive pulmonary disease (COPD) is a term used for both emphysema and chronic bronchitis • Pulmonary fibrosis is an interstitial lung disease characterized by damage and scarring to the tissues between the air sacs, inflammation of the air sacs, and stiffening of the lungs • Infections • Lung cancer • Pulmonary hypertension is a lung disorder characterized by a narrowing of the blood vessels in the lungs • Pulmonary embolism is a blood clot that usually originates in the veins of the legs or pelvis and travels to the lungs where it blocks a blood vessel, causing chest pain, acute shortness of breath, and coughing • Cystic fibrosis is an inherited disease that affects the lungs, pancreas, and other body systems. It is characterized by salty sweat, the production of thick
    12. 12. Did you know? • The right lung is slightly larger than the left • The surface area of the lungs is roughly the same size as a tennis court • A sneeze travels faster than a cough ( 60 vs 100 miles an hour) • A person at rest breathes about 12-15 times a minute. That is at least 17,000 times a day and over 6,000.000 breaths a year • Everyday, 15 Billion cigarettes are smoked worldwide • More than 35 Million Americans have chronic lung diseases. • The lungs are the only organ in the body that can float on water
    13. 13. Thank You