Answers to respiratory system functions tst: The primary function of the ___ is to supply the blood with oxygen so that the blood can deliver oxygen to all parts of the body.
Answer Respiratory system
The ___ is a strong wall of muscle that contracts to create a suction in the chest to draw in air and expand the lungs. When the muscle relaxes, the chest cavity decreases and the air is pushed out. Answer Diaphragm
Which of the following statements best describes how oxygen enters the lungs?
Answer Oxygen enters the lungs through the trachea, which branches into two tubes called the bronchi, which lead to the lungs.
External respiration takes place in the ___.
Answer Alveoli
Oxygen is carried by the ___, which is part of the red blood cell.
Answer Hemoglobin
Select the answer below that best describes how the lungs are kept free of germs and dirt from the air.
Answer 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 terms "a smoker's cough" refers to ___ which is caused by a long-term inflammation of the bronchi.
Answer 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:
Answer Emphysema
Both marijuana and tobacco contain ___, which are substances that cause cancer.
Answer Carcinogens
Which of the following statements is not true?
Answer People who quit smoking cannot reverse any of the damage that has been done to their lungs over an extended period of time.
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