Respiratory System

Question 1

Reasons for Inspiration

Answer 1

-oxygen into lungs
-smell

Question 2

Reasons for expiration

Answer 2

-remove CO2
-cough
-speech

Question 3

Lower Respiratory Tract

Answer 3

larynx
trachea
bronchus
bronchioles

Question 4

Upper Respiratory Tract

Answer 4

sinuses
nose
nasal cavity
pharynx

Question 5

Air’s passage through respiratory tract

Answer 5

Nasal cavity–>pharynx –>larynx –> trachea –> primary bronchi –> secondary bronchi –> tertiary bronchi –> bronchioles –> terminal bronchioles –> alveolar ducts —> alveolar sacks –> alveoli

Question 6

Conducting Zones

Answer 6

-Structures that don’t participate in gas exchange, but provide rigid passageways that allow air to reach alveoli
-Nose, nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles and terminal bronchi

Question 7

Respiratory Zones

Answer 7

-Structures that participate in gas exchange
-Respiratory bronchioles, alveolar ducts, alveolar sacs and alveoli

Question 8

Lung Structure

Answer 8

right lung: 3 lobes, superior/ middle/ inferior
left lung: 2 lobes, superior/inferior

Question 9

Pleural Cavity, fluid, membranes and linkage

Answer 9

Visceral pleura surrounds the lungs while parietal pleura surrounds the ribs/ thoracic wall Pleural fluid is created by pleural cells and moves between the parietal and visceral pleura. Negative pressure exists because of the small amount of pleural fluid, acting to stick the lungs and wall together via “pleural linkage.