Lecture 1 Pt 1 Exam 1 Material Flashcards
Respiratory tract is divided into two parts:
- Conducting
- Respiratory
Conducting zone is where ___ occurs
Air conduction
Respiratory zone is where ___ occurs
Gas exchange
If the respiratory zone is where ___ occurs… elaborate.
Gas exchange between CO2 and oxygen occurs in the respiratory zone
Explain the steps of air entering the body (5)
Nose –> Mouth –> Pharynx –> Larynx –> Trachea
Levels of O2 and CO2 do not change in the ____ zone
Conducting
What changes in the conducting zone?
Heat and moisture
Conducting zone (name all 6)
Nose
Pharynx
Larynx
Trachea
Bronchi
Large bronchioles
Respiratory zone (name all 2)
Smaller bronchioles
Alveoli
On the diagram, which four body parts are in the conducting zone?
Trachea
Carina
Extrapulmonary bronchus
Intrapulmonary bronchus
On the diagram, which two body parts are in the transitional zone?
Respiratory bronchiole
Primary, secondary, and tertiary bronchioles
On the diagram, which parts comprise the exchange zone?
Alveolar duct
Atrium
Alveolar sac
Alveolus
Identify the part circled
Trachea
Identify the part circled
Carina
Identify the part circled
Extrapulmonary bronchus
Identify the part circled
Intrapulmonary bronchus
Identify the part circled
Primary, secondary, and tertiary bronchioles
Identify the part circled
Respiratory bronchiole
Identify the part circled
Alveolar duct
Identify the part circled
Atrium
Identify the part circled
Alveolar sac
Identify the part circled
Alveolus
What kind of tissue does gas exchange primarily occur in?
Simple squamous epithelium
Explain gas exchange through the ___ epithelium
Simple squamous cell epithelium is very thin and only one cell thick, this allows gas to easily move through the single layer
