1. Write the following in order as air enters the mouth
Pharynx
Epiglotis
Vocal cords
Bronchus
Alveoli
2. Explain why it is beneficial to breath in through the
nasal passage.
As air enters the nose it can be filtered, moistened and warmed through
the nasal passages.
3. Explain the function and structure of the alveoli. 2
marks
The alveoli are tiny air sacs, which are wrapped in
capillaries (1 mark). They are responsible for the
diffusion for gases into and out of the body. (1 mark)
Research
For this part you will need to research the
following to diagnose your patient.
Old man Jackson has recently walked into your clinic.
For the past 3 days he has been complaining of chest
pain when breathing and coughing. You take his
temperature and notice he has a fever. Even though his
temperature is high, he explains that he has has
shaking chills.
As you continue to ask about any other changes and
symptoms of a possible infection he explains that he has
also had nausea, vomiting, shortness of breath and
Fatigue.
In your books, write out the symptoms Old man
Jackson exhibits
4. Based on the evidence above what could he have?
Pnemonia
5. From your diagnosis, you have discovered that this is
a bacterial infection, which caused the disease. What is
your course of action as a doctor?
Perscribe antibiotics.
6. Based on the information above, what defensive
measures did the bacteria avoid in the respiratory
system to cause an infection? (3 marks)
Goblet cells producing mucus, Cillia cells producing
mucus and pushing the bacteria up too the mouth and
macrophages in alveoli.
7. Explain how an asthma attack affects the lungs. Use
the following words in your answer: Bronchi, trachea,
coughing, cartilage, inflamed and mucus. 7 marks.
An asthma attack occurs when the airways of the lungs
become narrow. This causes coughing and wheezing in
the individual.
While the Trachea and Large Bronchi have cartilage
to prevent their collapse smaller bronchi do not.
These air ways become inflamed and swollen. This
tightening of the airway is further worsened by the
increase in mucus production.
8. Nasal cavity
Larynx
Trachea
Bronchia
Lungs
Diaphram