Human Anatomy and Physiology: The Respiratory System and Respiratory Diseases

Path of air in the Respiratory System

Nose and Nasal Cavity

Pharynx (Throat)

Larynx (Voice Box)

Trachea (Windpipe)

Primary Bronchi


Common Illnesses and Disorders


  • Shortness of breath
  • Tightness in chest
  • Coughing
  • Wheezing
  • Fatigue

Cystic Fibrosis

  • Recurring chest infections
  • Wheezing, coughing, shortness of breath and damage to the airways
  • Difficulty putting on weight and growing
  • Increased risk of other major diseases
  • Mucus-thinning drugs
  • Inhaled medications called bronchodilators that help keep your airways open
  • Medications that target gene mutations (CTFR Modulators)
  • Gene therapy (currently being developed)


  • Phlegm producing cough
  • Fatigue
  • Chest pains
  • Nausea
  • Shortness of breath
  • Vomiting
  • Fever

Chronic Obstructive Pulmonary Disease (COPD)

  • Chest tightness
  • Wheezing
  • Lack of energy
  • Coughing that may produce mucus
  • Shortness of breath




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