Functional Anatomy - Respiratory System

The upper respiratory system is composed of these divisions:

• Nasal cavity

• Larynx

• Pharynx

• Bronchioles

These apply to inhalation

• Diaphragm moves up

• Ribs move in

• Ribs move out

• Diaphragm contracts

• Creates larger pressure in thoracic cavity

These apply to exhilation

• Diaphragm relaxes

• Pressure increases in thoracic cavity

• Pressure is less outside the body

• Diaphragm moves down

Which answer is true?

• Increase in volume= increase in pressure

• decrease in volume= increase in pressure

• decrease in volume= decrease in pressure

• Increase in volume= decrease in pressure

What causes change in pressure when we breathe?

• Carbon dioxide levels

• Oxygen levels

• Diaphragm movement

• Hypoxia

Pressure moves from high to low

• False

• True

Inhale!!!!
Your lungs are ___________  air

• taking in
• letting out

EXHALE!!!
My lungs are __________________ air. 

• taking in
• letting out

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body
• to bring oxygen to the body
• to break down food and absorb nutrients
• to remove oxygen from the body and deliver carbon dioxide

What are the main organs of gas exchange in the respiratory system?

• diapragm
• lungs
• trachea
• bronchi