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SCI-4-2.1-Lungs.pptx.................................
- 1. LUNGS Lesson #2.1 Reference: ScienceWonders pg. 82-86 Prepared by: Vanessa G. Cruz, LPT
- 3. • are apair of spongy, elastic organs that carry out the major breathing function of the body. • They lie in the upper chest cavity, from the collarbone down to the diaphragm. • The lungs are the lightest organs in the body, where exchanges of gases take place. LUNGS
- 4. PARTS OF THELUNGS AND THEIR FUNCTIONS
- 5. RIBCAGE • The lungsare important and delicate organs that are protected by a set of bones called the ribcage. • The ribcage forms the chest cavity where the lungs are found. Both the ribcage and the diaphragm are important in the breathing process.
- 6. CILIA • The lungscontain cilia that protect them from dust particles. • At birth, the lungs are pink, but when a person ages, they become gray and mottled from tiny particles breathed in with the air.
- 7. PLEURA • The lungsare divided into the left and the right lobes and are covered with a thin membrane called pleura. • The right lung is somewhat larger than the left lung.
- 8. DIAPHRAGM • The diaphragmis a large, dome-shaped muscle that stretches across the base of the chest cavity and separates the chest cavity from the abdomen. • It Is the chief muscle used in breathing.
- 9. DIAPHRAGM • The diaphragmmoves downward when you inhale. • The chest cavity then becomes larger. When the chest cavity expands, the air pressure within it drops. • In contrast, the diaphragm relaxes and curves upward when you exhale or when air is moved out of the lungs. The size of the chest cavity is decreased. • The air pressure inside the chest
- 10. ALVEOLI • The tinysacs found in the lungs, to transfer the oxygen into the blood cells. • The lung has about 300 million alveoli.
- 11. How the lungswork?
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- 13.
- 14. Asthma • This isa lung disease that is chronic and long-lasting. • It recurs regularly and requires continuous treatment. • Asthma is characterized by shortness of breath,
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- 17. Bronchitis • This isan inflammation of the mucous membrane of the bronchi caused by bacteria, viruses, or irritants. • Those who are at risk in contracting bronchitis are the smokers and those exposed to harmful substances in the air. • Bronchitis may develop during severe cold and flu. Fluid gathers in the bronchi, resulting in a thick mucus
- 20. Pneumonia • This isan acute inflammation of the lungs caused by bacterial infection. • Pneumonia is a highly communicable disease that mostly develops as a complication of other respiratory infections Such as flu. • Fluid collects in the lungs making breathing difficult.
- 24. Tuberculosis (TB) • Thisis a common lung disease. Tubercle bacilli are the germs that cause TB. These germs get into the lungs and may also affect other parts of the body such as kidneys, bones, and brain. • Tuberculosis can easily be transferred either by direct contact or by airborne viruses and bacteria.
- 28. Emphysema • This isa serious lung disease characterized by the destruction of the walls of the air sacs and a serious shortness of breath. • Emphysema is a chronic lung disease more common in middle-aged or older people. It is developed over many years. • A person afflicted with emphysema experiences difficulty in exhaling. • The air sacs of the lungs are stretched thin and gradually destroyed, causing the lung tissue to lose its elasticity. The exchange of gases is hampered.
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- 32. Lung Cancer • Thisis a deadly disease in which cells grow wildly and lumps are developed. • Smoking is also the main cause of lung cancer. The sticky tar containing carcinogens accumulates in the air passages, making the cilia and the mucous membrane paralyzed and unable to do their normal functions. • Preventions or treatments of lung cancer includes regular check-up and taking in prescribed medicines.
- 33. Proper Care of theLungs
- 37. ACTIVITY Answer page 88letter B ONLY. DIAPHRAGM RIBCAGE LUNGS ALVEOLI CAPILLARIES 1. Alveoli 2. Diaphragm 3. Capillaries 4. Lungs 5. Ribcage
- 38. CREDITS: This presentationtemplate was created by Slidesgo, including icons by Flaticon, and infographics & images by Freepik REMINDER Be ready for a SW followed by QUIZ on Tuesday about Lungs on pg. 82- 86
- 39. SW 3.1 Jan.9 A.Encircle the correct answer.
- 40. 1. What isthe main organ in the respiratory system? a. Heart b. Lungs
- 41. 3. _______ isnot good for your lungs. a. exercising b. smoking c. singing
- 42. 4. At birth,the color of your lungs are ? a. white b. brown
- 43. 5. The tinyhairs that protect the lungs from the dust. a. Cilia b. Pleura
- 44. _____6. This isa serious lung disease characterized by the destruction of the walls of the air sacs and a
- 45. _____7. This isan acute inflammation of the lungs caused by bacterial infection.
- 46. _____8. This isa deadly disease in which cells grow wildly and lumps are developed.
- 47. _____9. This isa lung disease that is chronic and long-lasting.
- 48. _____10. Tubercle bacilli arethe germs that cause this disease.
- 49. B. Give atleast 5 diseases that affect the lungs.
- 50. SCIENCE 4- NOV17, 2022 Quiz on Tuesday (Nov 22) about Lungs.
- 52. QUIZ 3.1 Jan.9 A.Identify the following.
- 53. _______ 1. Arethe lightest organs in the body, were exchanges of gases take
- 54. _______ 2. Athin membrane that covers the lungs to protect them during breathing.
- 55. _______ 3. Thetiny sacs found in the lungs, to transfer the oxygen into the blood cells.
- 56. _______ 4. Aset of bones that protects your heart and lungs.
- 57. _______ 5. Itis the chief muscle used in breathing.
- 58. _______ 6. Thisis an inflammation of the mucous membrane of the bronchi caused by bacteria, viruses, or
- 59. _______ 7. Alarge, dome- shaped muscle from the lower abdomen.
- 60. 8. The lunghas about _____ million alveoli. ____9. Two branches at the end of trachea.
- 61. ______10. Trachea isalso called as.
- 62. B. Essay 1. Whyare your lungs are not the same size? 2. Why are your lungs