there are four important factors that effecting the lung resistance .
1- lung volume
2- density and viscosity of the air breathed.
3- contraction of smooth muscles of the air way.
4- diameter of the airway.
asthma is a common disease affecting the alveoli,where the breathing comes restricted and,causes inflamation of the airway thus making it harder to breathe.
The lungs
The Windpipe, also known as the trachea, is the airway from the mouth to the lungs.
feet
Blockage of the throat or airways. Asthma and other breathing problems resulting from smoking or infections. Swelling when sick and mucus can also harbor breathing and also affect gas flow. Carbon monoxide also can affect the chemical balance.
The nose, pharynx, and trachea are the parts of the upper airway. The tubes of the lungs comprise the lower airway.
from nose through airway in throat into lungs
A broncodilator is a substance that originates in the body or medications used to improve breathing difficulties. It works by lowering the resistance of a person's respiratory airway providing more air to the lungs.
Trachea
Epiglottis
YES
Airway and lungs