Mechanics of Breathing&Lung volumes

What muscles are used in breathing in

• diaphragm and intercostals

• diaphragm and lungs

• Abdominals

What equipment is used to measure air being inspired and expired?

• breathalyzer

• spirometer

• inspirometer

• expirometer

What is the volume that remains in the lungs even after a forceful exhale

• expiratory reserve
• residual volume
• inspiratory reserve
• total lung capacity

The average volume of a normal breath

• 3000mL

• 2400mL

• 1200mL

• 500mL

What do we call the normal shallow breathing volume?

• minute ventilation

• inspiratory capacity

• tidal volume

• vital capacity

The amount of air you can force out after a normal breath out

• Expiratory Reserve
• Functional Residual Capacity
• Vital Capacity
• Inspiratory Capacity

The amount of air you can still inhale after a normal breath in

• Vital Capacity
• Inspiratory Reserve
• Functional Residual Capacity
• Inspiratory Capacity

When air pressure inside the lungs is less than air pressure in the atmosphere...

• Air moves into the lungs
• Air moves out of the lungs

During forced inhalation, what other muscles are used?

• The abdominals

• The sternocleidomastoid

• The pectoralis major

• The deltoids

Which of the following correctly shows Boyle's law?

• Increased volume=increased pressure

• decreased volume=decreased pressure

• decreased volume=increased pressure