Respiratory System

• Trachea

  Passage connecting the throat and lungs
• Alveoli

  Tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place
• Respiratory system

  • Mouth and nose
  • Sinuses
  • Pharynx (throat)
  • Trachea
  • Lungs
  • Bronchial tubes/bronchi
  • Bronchioles
  • Alveoli
  • Diaphragm
  • Cilia
  • Epiglottis
• Lungs

  A pair of spongy air-filled organs located at either side of the chest. It brings fresh oxygen into the body and removes carbon dioxide and other waste gases from the body. From the lungs, the bloodstream delivers oxygen to all organs and other tissues. Muscles and bones help move the air inhaled in and out of the lungs
• Mouth and nose

  Openings that pull air from outside the body into the respiratory system
• Pharynx (throat)

  Tube that delivers air from the mouth and nose to the trachea (windpipe)
• Epiglottis

  Tissue flap at the entrance to the trachea that closes when you swallow to keep food and liquids out of your airway
• Bronchioles

  Small branches of the bronchial tubes that lead to the alveoli
• Sinuses

  Hollow areas between the bones in the head that help regulate the temperature and humidity of the air inhaled
• Bronchial tubes/bronchi

  Tubes at the bottom of the windpipe that connect into each lung
• Cilia

  Tiny hairs that move in a wave-like motion to filter dust and other irritants out of your airways
• Diaphragm

  Muscle that helps your lungs pull in air and push it out