Respiratory System

Functions of respiratory system
Transport air into and out of lungs;
Protecting against inhaled particles;
Exchange of oxygen and carbon dioxide

Breathing and Respiration
Breathing
1. Mechanism by which organisms obtain oxygen from the air and release carbon dioxide
2. It is a physical process
3. It involves lungs of the organism

Respiratory system
The conducting passageways (the cavities and tubes) consist anatomically of the nose and paranasal sinuses; pharynx, larynx, trachea, which divides into bronchi and terminal bronchioles.

Respiratory system components
Nose and nasal cavity;
Mouth;
Pharynx;
Larynx;
Trachea;
Bronchi and Bronchioles;
Lungs;
Muscles of Respiration.
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