parts of respiratory system

 

Respiratory system consist of nose, pharynx (throat), larynx (voice box), trachea (windpipe), bronchi, lungs.

 Organs of the respiratory system divided-

A. According to structure

B. According to Function

A. According to Structure

1. Upper Respiratory System/Airways

Upper respiratory airway composed of -

Nose

Pharynx

Larynx

2. Lower Respiratory System/Airways

Lower respiratory airway composed of -

Trachea

Bronchi

Bronchioles

Alveolar duct

Alveolar sacs

Alveoli

B. According to Function

1. Conducting Zone

Interconnecting structure that filter, warm and moisten air and conduct it into the lung.

Nose

Pharynx

Larynx

Trachea

Bronchi

Branchioles

And Terminal branchioles

2. Respiratory zone

Structure in lungs where gas exchange respiratory occurs-

Respiratory bronchioles

Alveolar ducts

Alveolar sac

and Alveoli