Select the answer below that best describes how the lungs are kept free of germs and dirt from the air.

(1 point)
Responses

The alveoli act as filters for the lungs collecting particles of dirt and germs to be exhaled when the diaphragm relaxes.
The alveoli act as filters for the lungs collecting particles of dirt and germs to be exhaled when the diaphragm relaxes.

Tiny hairs known as cilia clean the trachea of dirt and germs before it can enter the lungs.
Tiny hairs known as cilia clean the trachea of dirt and germs before it can enter the lungs.

Hairs known as cilia, found inside the alveoli, collect the dirt and germs to be expelled from the lungs.
Hairs known as cilia, found inside the alveoli, collect the dirt and germs to be expelled from the lungs.

Mucus found in the bronchial tubes collects dirt and germs that gets into your lungs. Tiny hairs called cilia work to sweep out the debris collected to keep your lungs clean.

9 answers

Mucus found in the bronchial tubes collects dirt and germs that gets into your lungs. Tiny hairs called cilia work to sweep out the debris collected to keep your lungs clean.
The term “a smoker’s cough” refers to ________________ , which is caused by a long-term inflammation of the bronchi.
(1 point)
Responses

emphysema
emphysema

lung cancer
lung cancer

chronic bronchitis
chronic bronchitis

cilia degeneration
chronic bronchitis
Janet smoked cigarettes since she was sixteen. Now at age 45, she suffers from shortness of breath, coughing, fatigue, sleep and heart problems, weight loss, and depression. Her condition is caused by a chronic lung condition that affects the alveoli. Janet suffers from:
(1 point)
Responses

emphysema
emphysema

lung cancer
lung cancer

chronic bronchitis
chronic bronchitis

cilia degeneration
cilia degeneration
emphysema
Both marijuana and tobacco smoke contain__________________, which are substances that cause cancer.
(1 point)
Responses

Delta-9-tetrahydrocannabinol (THC)
Delta-9-tetrahydrocannabinol (THC)

Thiamine and dextrose
Thiamine and dextrose

Enzymes
Enzymes

Carcinogens
Carcinogens
Carcinogens
Which of the following statements is not true?
(1 point)
Responses

Smoking at an early age increases the risk of lung cancer. For most smoking-related cancers, the risk rises as the individual continues to smoke.
Smoking at an early age increases the risk of lung cancer. For most smoking-related cancers, the risk rises as the individual continues to smoke.

Teenage smokers suffer from shortness of breath almost three times as often as teens who don't smoke and produce phlegm more than twice as often as teens who don't smoke.
Teenage smokers suffer from shortness of breath almost three times as often as teens who don't smoke and produce phlegm more than twice as often as teens who don't smoke.

Teenage smokers are more likely to have seen a doctor or other health professionals for an emotional or psychological complaint.
Teenage smokers are more likely to have seen a doctor or other health professionals for an emotional or psychological complaint.

People who quit smoking cannot reverse any of the damage that has been done to their lungs over an extended period of time.
People who quit smoking cannot reverse any of the damage that has been done to their lungs over an extended period of time.