Respiratory System Lesson 3

What is the definition of breathing rate?

• The number of breaths taken in a minute.

• The volume of gas inhaled or exhaled from the lungs per minute.

• The amount of air which enters the lungs during normal inhalation at rest or during exercise (each breath).

What is the definition of minute ventilation?

• The number of breaths taken in a minute.

• The volume of gas inhaled or exhaled from the lungs per minute.

• The amount of air that enters the lungs during normal inhalation at rest or during exercise (each breath).

What is the definition of tidal volume?

• The number of breaths taken in a minute.

• The volume of gas inhaled or exhaled from the lungs per minute.

• The amount of air which enters the lungs during normal inhalation at rest or during exercise (each breath).

What is the equation for minute ventilation?

• Breathing rate x tidal volume

• Breathing rate + tidal volume

• Breathing rate - tidal volume

• Breathing rate (divide) tidal volume

When exercising, what happens to our tidal volume and minute ventilation?

• It increases

• It decreases

• It stays the same