Asthma does because it swells the bronchi and your muscles tighten. Colds also hurt te respiratory system because you get more mucus then you should have and you cough and sneeze to get rid of pathogens. Smoking does to it paralyzes cilia.
Smoking will hurt the respiratory system. It has harmful lead, so when you inhale you are inhaling lead.
It can hurt it and your lungs can turn black
The respiratory system is the system that handles breathing.
The Respiratory System
The trachea is the airway in the respiratory system.
The larynx belongs to the respiratory system.
no, they do not have a respiratory system
how does the respiratory system work
Respiratory system
The respiratory system.
Respiratory System
1. Respiratory system 2. Cardiovascular system