The Respiratory System

Question 1

Nasal passage

Answer 1

Air is moistened and cleaned

-secretes mucus to trap bacteria
-ciliated cells move particles back up the nose and throat

Question 2

Trachea

Answer 2

Also lines with ciliated cells which produce mucous

-wall is supported by cartilage rings

Question 3

Pharynx

Answer 3

The throat, passageway for air into the respiratory system, and food into the digestive system

Question 4

Epiglottis

Answer 4

Flap like structure that covers the opening of the trachea when food is swallowed

Question 5

Larynx

Answer 5

Voice box

-composed of two thin sheets of elastic ligaments called vocal cords

Question 6

Bronchi

Answer 6

Trachea branches into smaller pathways that enter their left and right lungs

-contain C shaped cartilage rings

Question 7

Bronchioles

Answer 7

Samller airway branches within each lung

• do not contain cartilage rings

Question 8

Smooth muscle

Answer 8

Can increase or decrease the diameter of the bronchioles

Question 9

Alveoli

Answer 9

-tiny blind ended sacs at the end of the bronchioles
-each alveolus is surrounded by capillaries
- where the lungs and blood exchange oxygen and carbon dioxide

Question 10

Respiratory distress syndrome

Answer 10

Happens on babies when they do not produce enough lipoprotein

Question 11

Pleural membrane

Answer 11

Line the inner wall of the chest cavity
-filled with fluids that reduce friction between the lungs and chest cavity

Question 12

Diaphragm

Answer 12

A sheet of muscle that separates the organs of the chest cavity from the abdominal cavity

Question 13

Intercostal muscles

Answer 13

Found in between the ribs and along the inside surface of the ribs