Respiratory System

10-14

structures

the two parts

Upper

  • Nose
  • Sinuses
  • Pharynx
  • Epiglottis
  • Larynx
  • Trachea

Lower
  • Lungs
  • Pleura
  • Mediastinum

Importance to immunity

Nose

Cilia

  • The hairs in your nose
  • Traps dirt particles keeping them out of your lungs.

Pharynx

Passage way for air and food

Epiglottis

  • Prevents food from entering trachea

Trachea

Lined with ciliated mucous membrane

  • To trap dusty particles
Coughing gets rid of this dusty mucous

Nutrients

  • The cilia holds back dusty particles cleaning the nutrients for your body
  • It keeps your body clean so your body can use the nutrients it needs