Respiratory System

• Respiratory system


  Responsible for respiration or inhalation of oxygen and exhalation of carbon dioxide
• Different parts of respiratory system

  • Nose
  • Pharynx
  • Larynx
  • Trachea
  • Bronchi
  • Alveoli
  • Lungs
  • Diaphragm
• Nose


  • Filters, moistens and heats up air
  • Contains a nasal cavity, which has tiny hair called cilia and mucus membrane
• Pharynx


  1. Passageway of air

  2. Divided into nasopharynx, oropharynx, and laryngopharynx
• Larynx


  • Connects the pharynx to the trachea
  • Also known as the voice box
  • Able to produce sounds
• Trachea


  Tube-like structure, also known as the windpipe
• Bronchi


  1. Tubes that allow air to pass into the lungs

  2. Divided into right bronchus and left bronchus
• Bronchi


  Larger tubes
• Bronchioles


  Smaller tubes
• Alveoli


  Facilitates the gaseous exchange between oxygen and carbon dioxide inside the lungs
• Lungs


  • House the bronchi
  • Major organ in the respiratory system
• Diaphragm


  • Respiratory muscle
  • Plays an important role in breathing
  • Muscular diaphragm which aids in ventilation
• Blue oxygenated blood


  Walang oxygen
• Red oxygenated blood


  May oxygen