Respiratory System

Respiratory System

Respiratory System

Components of the Respiratory System

• Nose The most external organ, air is inhaled and exhaled through nose.
• Larynx Also known as sound box, formed of cartilages, connects the trachea to the laryngopharynx
• Trachea Tubular structure, composed of 15-20 C shaped cartilages

Components of the Respiratory System

• Bronchi Left and right divisions of trachea, enters the lungs and divide into secondary bronchi
• Lungs Main organs of respiration, two in number (one on each side of heart), conical in shape, divided into lobes

Parts of the Respiratory System

Conductive Parts
Respiratory Parts

Conductive Parts

Nose, larynx, trachea, bronchi
exchange of gases does not take place

Respiratory Parts

Lungs
exchange of gases takes place

Functions of the Respiratory System

Gaseous Exchange,
Excretion of carbon dioxide,
Oxygenation of blood