BIOL 251 Exam 4 Respiratory diseases

(LC) T/F: The entire human respiratory tract is sterile (contains no microorganisms).

What does the lower respiratory system consist of?

The

• Larynx

• Trachea

• Lungs

  • Bronchial tubes

  • Alveoli

  • No resident microflora

The lungs seperate into what 2 things?

• Bronchial tubes and alveoli 

What does the upper respiratory system consist of?

• Nose

• Pharynx

• Middle ear

• Eustachian tubes

• Normal microflora

  • May include potential pathogens

  • Helps to prevent infection

• IgA antibodies in mucus, saliva, tears 

T/F: The lungs in the lower respiratory system contain normal microflora that may include potential pathogens and help to prevent infection.

F, the lungs have NO resident microflora. Normal microflora are only present in the upper respiratory system

T/F: The upper respiratory system contains normal microflora that may include potential pathogens and help to prevent infection.

T

Steptococcal pharyngitis is also known as

strep throat