Diagram of the Respiratory System

Task:

Task 1

Below is a diagram of the respiratory system. Identify each of the numbered components and add small notes (annotations) to describe the function of each of the structures identified:

Give four features of the alveoli that encourage efficient gas exchange. (100 words)
Explain how the trachea is structured for its function. (100 words)

Task 2

In no more than 100 words, explain how each of the following structure change during one breathing cycle (breathing in, then out).

  1. Diaphragm
  2. External intercostal muscle
  3. Ribs
  4. Thoracic cavity

Task 3

The task of breathing is controlled by the nervous system. We can control our breathing voluntarily, but when we are thinking about other things, or asleep, the brain takes over for us.

Explain how the rate of breathing is controlled by the nervous system at rest and during exercise.  Ensure your answers include an explanation of tidal breathing and forced exhalation.  (AC1.2, 1.3 and 2.3)

Task 4

Write no more than 250 words on how oxygen is transported around the body. You should include descriptions and explanations of:

The structure of red blood cells and their adaptations (AC 2.1)
Explain how oxygen and carbon dioxide are exchanged in both the lungs and tissues of the body (AC 2.2)

Task 5

From the respiratory disorders below, pick TWO.

a) Chronic Obstructive Pulmonary Disorder (COPD)
b) Asthma
c) Emphysema
d) Pneumonia

Complete the table below to discuss each of the disorders. You should Include:

Causes,
Symptoms
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