The lungs, gas exchange & Breathing

What is the site of gas exchange?

• alveoli

• bronchus

• nose

• trachea

The division of the trachea forms

• main bronchi

• alveoli

• lungs

• nose

Which of the following are features of the alveoli that adapt them to gas exchange?

I. High surface area

II. Thin walls

III. Dry surfaces

• I and II only

• I only

• II and III

• I, II, and III

Given the following structures:

1. alveoli

2. bronchi

3. bronchioles

Which of the following is the correct order in which air would flow after inhalation?

• 1,2,3

• 2,1,3

• 2,3,1

• 3,2,1

What adaptations does the alveoli have for efficient gas exchange?

• thick walls

• thin walls

• small surface area

what is found around alveoli?

• capillaries

• pleura

• lymphatic nodes

• saliva

Given the following structures:
1. larynx
2. nasal cavity
3. pharynx
4. trachea
Which of the following is the correct order that air would flow during inhalation. 

• 1,2,3,4
• 2,3,1,4
• 2,1,3,4
• 4,2,3,1 

Spot 8 is labeling the...

• trachea

• nasal cavity

• bronchi

• larynx

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body

• o break down food and absorb nutrients

• to remove oxygen from the body and deliver carbon dioxide

What is the name of the movement of oxygen in and carbon dioxide out of the body.

• transpiration

• respiration

• digestion

• ventilation