Respiratory system

What process causes oxygen to pass from the alveloli into the lung capillaries?

Inhaled air contains about 21 % oxygen. What is the approximate percentage concentration of oxygen in exhaled air?

State four characteristics of an efficient respiratory surface.

How many breathes per minute can be counted in the following diagram?

Which is the process that requires oxygen within the cells?

Muscles cells can perform anaerobic respiration in certain conditions.

True

False

Which are the muscles involved in ventilation?

Why is the exhaled air always warm, regarding its temperature?

Which is the difference between gas exchange and breathing?

Name structures A and B

Trachea and lungs

Bronchus and alveoli

Trachea and alveoli

Trachea and brochiolus

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