Question

section summary

• human respiratory health is affected by infections, the environment, and lifestyle.
• disorders of the lower respiratory tract both cause and can be caused by damage to the bronchi and the lungs.
• technologies for diagnosing disorders of the respiratory system include ct scans, spiral ct scans, and bronchoscopy.
• technologies for treating lung cancer include radiation, chemotherapy, traditional surgery, and laser surgery.
• recent advances in medical technologies allow for early detection of cancer and a reduced number of biopsies through the use of two - photon microscopy.

review questions

1. evaluate this statement: “tonsils, like the appendix, are extraneous organs that should be removed if they become infected.” state whether you agree with it, and justify your position.
2. in densely populated areas, weather forecasters often predict whether a toxic gas called ozone will form on a given day. ozone is an irritant to delicate tissues that are exposed to it. which groups of the population should pay particular attention to this forecast, and why?
3. draw a cause - and - effect map to show one way in which chronic bronchitis is triggered and what its effects are.
4. describe emphysema and explain why a person with this disease is treated using a low - flow oxygen system.
5. a patient who has broken a rib finds it painful to take large, deep breaths. if the patient also has asthma, what kind of hand - held inhaler might a doctor recommend? explain your answer.
6. what are two advantages of a spiral ct scanner compared to a conventional ct scanner?
7. the canadian cystic fibrosis foundation chose the slogan “breathing life into the future” for a recent ad campaign. analyze why the slogan is appropriate for this organization.
8. use a flowchart to demonstrate how a tumour forms in the lungs and leads to the formation of tumours in other parts of the body.
9. asbestosis (also called pulmonary fibrosis) is a serious, chronic, non - cancerous respiratory disease. inhaled asbestos fibres aggravate lung tissue, which causes scar tissue to form. scarred lung tissue does not expand and contract normally and cannot perform gas exchange. predict three symptoms that an individual with asbestosis would display, and explain why the person would have each symptom. focus your answers on the respiratory system only.

a colour - enhanced x ray reveals the scarred lung tissue of a person with asbestosis.

1. given that x rays are a form of radiation, explain why the dentist asks you to wear a lead apron that covers at least your torso before taking an x ray of your teeth.
2. why do lung cancer patients have such a low survival rate?
3. explain why laser surgery is more successful than traditional surgery for lung cancer patients.
4. create a main idea web to display at least five pieces of information about the computed axial tomography (ct) scanner.
5. explain why chemotherapy kills normal cells as well as cancerous cells.
6. why might radiation therapy and chemotherapy be used on a patient even after a tumour has been surgically removed?
7. liposomes are artificial microscopic bubbles that can be used to deliver dna to target cells or organs. what might be an advantage of using this type of delivery system to treat cystic fibrosis?

Explanation:

Since you've provided a set of review questions related to respiratory health, medical technologies, and related topics, but haven't specified which one you want to be solved, I'll pick question 10 as an example (you can ask for any other question to be solved as well):

Question 10: Given that X rays are a form of radiation, explain why the dentist asks you to wear a lead apron that covers at least your torso before taking an X ray of your teeth.

X - rays are a type of ionizing radiation. Ionizing radiation can penetrate the body and cause damage to cells, including mutations in DNA. The lead in the apron is a dense material that is effective at absorbing X - rays. By wearing a lead apron that covers the torso, the dentist is protecting the vital organs (such as the heart, lungs, and other internal organs in the torso) from unnecessary exposure to X - ray radiation. This is important because repeated or excessive exposure to X - ray radiation can increase the risk of developing cancer or other radiation - related health problems.

Answer:

The dentist asks you to wear a lead apron because X - rays are ionizing radiation that can damage cells (including causing DNA mutations). Lead is dense and absorbs X - rays well. The lead apron protects the vital organs in the torso (like the heart, lungs, etc.) from unnecessary X - ray exposure, reducing the risk of radiation - related health issues (such as cancer) from excessive or repeated radiation exposure.