Respiratory System

by Jamareah Mclean

Upper Respiratory System

Structures of the respiratory system?

upper respiratory system

  • The nose
nasal cavity- space behind the nose
nasal septum-divides nasal cavities into right and left sides
turbinates- bones that protrude into nasal cavity, increase surface
cilia- the hairs in your nose, trap larger dirt particles
  • The sinuses

Cavities in the skull, ducts connect them to the nasal cavity, lined with mocous membrane to warm and moisten the air

  • Ethmoid
  • Sphenoid
  • The larynx

Voice box is the triangular chamber below pharynx

Vocal cords or glottis

sound formed by vivbrations

  • The trachea

Walls are alternate bands of membrane and C shape rings of hyaline cartilage-to keep trachea open

lined with ciliated mucous membrane

  • The pharynx


Nasopharynx- above and behind soft palate

Orophayrnx- oral part of the mouth


Epiglottis- cartilage flap that prevents food from entering trachea

Lower respiratory System

Importance of respiratory System as it relates to immunity?

Mucus play a major role in immune defense. The mucus holds antibodies created by the immune cells. The (secretory IgA)antibodies are the largest part of our immune system.

How do you relate the body's use of nutrients to the respiratory system?

When you breathe it allows nutrients to enter the cells. We get nutrients when we eat and drink, which is apart of the respiratory system.