The Importance of Mucus

What color is mucus at the beginning of an illness?

• green
• yellow
• clear
• brown

Yellow and green mucus are caused by bacteria or by enzymes released from white blood cells as they fight infection.

• True
• False

The color of mucus can tell you exactly why you are sick.

• True
• False

Which area of your body is lined with mucous membranes?

• lungs
• nose/throat
• sinues
• all of the above

Mucus is made of which of the following substances?

• water
• proteins
• sugar
• all of the above

Which of the following is NOT a job of mucus?

• Acts as a barrier
• Produces white blood cells
• Defends the body
• Protects the body

Mucus in the respiratory tract is moved to the throat by which structure?

• cilia
• trachea
• lungs
• bronchi

Mucus and trapped particles that move to the throat either get coughed up or _________.

• broken down
• dissolved
• swallowed
• sneezed out