Respiratory System PDF

RESPIRATORY SYSTEM  VIDEOS https://www.youtube.com/watch?v=UTR1IsX55dc https://www.youtube.com/watch?v=mOKmjYwfDGU&t=30s https://www.youtube.com/watch?v=PlNEabFZ5Qk  FUNCTION/PURPOSE The respiratory system exchanges gases in the lungs. Oxygen i...

RESPIRATORY SYSTEM  VIDEOS https://www.youtube.com/watch?v=UTR1IsX55dc https://www.youtube.com/watch?v=mOKmjYwfDGU&t=30s https://www.youtube.com/watch?v=PlNEabFZ5Qk  FUNCTION/PURPOSE The respiratory system exchanges gases in the lungs. Oxygen is transported by the blood to the body parts where it is needed for respiration Chemical process in all living cells when food and oxygen are used to make energy and carbon dioxide Your cells produce carbon dioxide during respiration, which is carried to the lungs to be exhaled.  STRUCTURE The main organs are the: o Nose o Bronchioles o Mouth o Alveoli o Trachea o Thoracic muscles o Bronchi o Blood o Lungs Mouth: air passes through the mouth into the respiratory system.  Nose: air passes through the nose into the respiratory system. Tiny hairs and mucous trap dust particles in the air to prevent them from entering the lungs. Trachea: air flows down the trachea (windpipe) from the nose and mouth into the lungs. The trachea is reinforced by rings of cartilage and lined with hairs to move dust and other particles back out the airways. The trachea divides into two large tubes called bronchi that go into the lungs. Bronchi (singular bronchus): One bronchus goes from the trachea into each lung. The bronchi also produce mucous to trap dust particles. Inside the lungs, the bronchi divide into many smaller branches called bronchioles.  Lungs: the lungs are sponge-like sacs that lie inside the cavity of your chest. They are made up of millions of tiny air sacs called alveoli that are used for gaseous exchange. As air passes into the lungs, the air sacs fill up with air. Each alveolus is surrounded by lots of small blood vessels (capillaries). Bronchioles: air flows in these tiny tubes to each alveolus. Alveoli (singular alveolus): These are tiny air-filled sacs that are surrounded by small blood vessels called capillaries. The walls of the alveoli are very thin so gases can cross between the capillaries and air sacs (gaseous exchange). There are many alveoli and they provide a large surface area for gaseous exchange.  VIDEOS https://www.youtube.com/watch?v=UTR1IsX55dc https://www.youtube.com/watch?v=mOKmjYwfDGU&t=30s https://www.youtube.com/watch?v=PlNEabFZ5Qk  Trachea Bronchioles Bronchus Lung Alveoli Diaphragm (“air sacs”) PROGRESS CHECK Put these in the correct order... Alveoli Bronchi Nose/Mouth Trachea Bronchioles PROGRESS CHECK Put these in the correct order... Nose/Mouth Trachea Bronchi Bronchioles Alveoli  MAIN PROCESSES The main processes of the respiratory system include breathing, gaseous exchange and respiration: Breathing is the process where air is moved in and out the lungs. The 0 process involves inhalation (breathing in) and exhalation (breathing out) When gases move across the cell membrane or a surface in opposite directions, it is called gaseous exchange. Gaseous exchange is needed to provide cells with enough oxygen for respiration, and to remove carbon dioxide that the cells produce. C Defusion In the cells of your body, glucose is broken down to release energy. This chemical process is called respiration. Glucose+ oxygen ——> energy+ carbon dioxide+ water  BREATHING Thoracic Muscles  ASTHMA Air passages become swollen, constricted and blocked TRIGGERS Exercise Stress Pollen Smoke Cold air Respiratory infections  ASTHMA SYMPTOMS Coughing Wheezing Shortness of breath Chest tightness https://www.youtube.com/watch?v=PzfLDi-sL3w https://www.webmd.com/asthma/severe-asthma-17/video-asthma-medication LUNG CANCER  LUNG CANCER Leading cause of cancer deaths throughout the Chemical world. Radiation Carcinogens cause normal cells to grow abnormally and multiply without control Cancerous Malignant tumours take oxygen, nutrients and Grows into surrounding tissue space from healthy cells Cancer cells can spread to other parts of the lungs and body LUNG CANCER  LUNG CANCER SYMPTOMS Coughing Coughing up blood Shortness of breath Chest pain  HEALTH ISSUES Asthma is a disorder that causes the airways of the lungs to swell and narrow. This is caused by inflammation in the airways. This leads to wheezing, shortness of breath, chest tightness and coughing. Lung cancer is a disease where the epithelial cells grow uncontrollably. These cells form a mass known as a tumour.  BRONCHITIS An inflammation of the bronchial lining Mucus blocks up the air passages  BRONCHITIS Occasion. Iy Acute – viral / bacterial infection all the time Chronic – constant inflammation, often due to smoking  BRONCHITIS SYMPTOMS Cough Production of mucus Fatigue Shortness of breath Slight fever and chills Chest discomfort ASBESTOSIS  ASBESTOSIS Scar tissue limits the ability of the lungs to expand and contract  ASBESTOSIS SYMPTOMS Shortness of breath Persistent dry cough Chest tightness and pain Fatigue Crackling sound when breathing https://www.youtube.com/watch?v=jifoNSXvTuQ  Bronchitis is the inflammation or swelling of the bronchial tubes. They breathe less air and oxygen into their lungs. Asbestosis is a disease caused by asbestos fibres entering the lungs during inhalation. The fibres build up in the lungs and the lung tissue becomes stiff. It causes shortness of breath and can lead to lung cancer.