Question

D. Short-answer questions
1. Why does the body need oxygen?
2. What is the function of the epiglottis?
3. How are the lungs protected from injury:
4. Which substance carries oxygen to all parts
of the body?
5. Where does gas exchange occur?
6. What is a bronchodilator?
7. What is bronchitis? How is it caused?
8. How is the disease pneumonia treated?​

Answer 1

Answer:

1. to obtain energy to fuel all our living processes

Explanation:

to obtain energy to fuel all our living processes . carbon dioxide is a waste product of that process . the respiratory system ,with its conduction and respiratory zones, brings air from the environment to the lungs and facilitates gas exchange both in lungs and within the cells

Answer 2

Answer:

D. Short-answer questions

1. Why does the body need oxygen?

1A:- Our body needs oxygen to obtain energy to fuel all our living processes.

2. What is the function of the epiglottis?

2A:- When a person swallows the epiglottis folds backward to cover the entrance of the larynx so food and liquid do not enter the windpipe and lungs.

3. How are the lungs protected from injury:

3A:- Your lungs are protected by your rib cage, which is made up of 12 sets of ribs.

4. Which substance carries oxygen to all parts  of the Body?

4A:- Blood brings oxygen and nutrients to all the parts of the body so they can keep working.

5. Where does gas exchange occur?

5A:- Gas exchange happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.

6. What is a bronchodilator?

6A:- A bronchodilator or broncholytic is a substance that dilates the bronchi and bronchioles, decreasing resistance in the respiratory airway and increasing airflow to the lungs.

7. What is bronchitis? How is it caused?

7A:- Acute bronchitis is usually caused by viruses, typically the same viruses that cause colds and flu (influenza). Antibiotics don't kill viruses. The most common cause of chronic bronchitis is cigarette smoking.

8. How is the disease pneumonia treated?​

8A:- If your pneumonia is so severe that you are treated in the hospital, you may be given intravenous fluids and antibiotics, as well as oxygen therapy, and possibly other breathing treatments.

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