To the nonsmokers who are exposed in inhaling the cigarette smoke have a high risk of lung cancer and respiratory diseases.
Lung cancer will effect the blood gas-exchange system, as damaged lung tissue, may cause difficulty in the exchange of gas from the air into the blood stream, and may cause cyanosis, deeper breathing, and even asphyxia (death, which is caused by insufficient amount of oxygen into the brain cells).
the organ that is involved in gas exchange is the lung. the specific lung structure that is the site for gas exchange is the alveolus which is part of the alveoli, which is found in the lung.
They are the alveoli.
The majority of people who get Lung Cancer according to some studies, is smoking. There are other ways to get Lung Cancer like second hand smoke, radon gas and Asbestos.
gas exchange
Carbon monoxide
Lung cancer reduces lung function (just before it kills you). The reduced lung function means there would be less gas exchange taking place, which means less oxygen getting to the body.
The alveoli are the final branchings of the respiratory tree and act as the primary gas exchange units of the lung.
It has probably been with people when people first became people. According to Google, the link between Radon gas and lung cancer was noticed in mines in 1470. But I don't think lung cancer 'first occurred' there. I think lung cancer has always been with human beings.
Alveoli
yes certainly