Respiratory System

• Name the human Respiratory System

  A) Nasal Cavity

  B) Pharynx

  C) Larynx

  D) Trachea

  E) Bronchi

  F) Lungs

  G) Alveoli

  H) Heart

  
• CO2


  This is what we exhale during respiration
• O2


  This is what we inhale during respiration
• External nostrils


  For the intake of air
• Nasal chamber


  This is lined with hair and mucus to filter the air from dust and dirt.
• Pharynx


  It is a passage behind the nasal chamber and serves as the common passageway for both air and food.
• Larynx


  Known as the SOUNDBOX as it houses the vocal chords, which are paramount in the generation of sound.
• Epiglottis


  It is a flap-like structure that COVERS THE GLOTTIS and prevents the entry of food into the windpipe.
• Trachea


  It is a LONG TUBE passing through the mid-thoracic cavity.
• Bronchi


  The trachea divides into left and right bronchi.
• Bronchioles


  Each bronchus is FURTHER DIVIDED into finer channels known as this
• Alveoli


  The bronchioles terminate in balloon-like structures known as this
• Lungs


  These are sac-like structures and covered by a double-layered membrane known as pleura.

  • The primary function: to FACILITATE THE EXCHANGE OF GASSES between the blood and the air.