HUMAN RESPIRATORY SYSTEM

HUMAN RESPIRATORY SYSTEM

Human respiratory system is the system in the body which help us to breathe.
The human respiratory tract consists of:

The nasal cavity

Hollow space where air passes through

Bronchus

Main branches of the trachea

Bronchiole

Extension tubes of bronchus

Diaphragm

Sheets of muscles

Trachea

Tube supported by ring and cartilage

Ribs

Bones that form rib cage to protect lungs

Intercostal muscles

Muscles fouund between the ribs

Lung

Rich with blood cappilaries and alveoli

AIR PASSAGE INTO THE LUNGS THROUGH THE FOLLOWING PARTS :

Nose > Trachea > Bronchus > Bronchiole > Alveolus