What gases make up the air we breath? What percentage is oxygen?
Define and distinguish between breathing and respiration.
Know the structure and function of the respiratory system. Label the diagram. (nasal cavity, trachea, cilia, epiglottis, larynx, pharynx, bronchi, bronchioles, alveoli, pleural membrane, lung, rib cage, diaphragm, intercostal muscles)
Describe inhalation and exhalation in terms of air pressure, diaphragm and rib cage movement.
Three ways carbon dioxide is carried by the blood and two ways in which oxygen is carried by the blood.
Movement of gases due to partial pressure.
Disorders of the respiratory system. (Bronchitis, emphysema, Pneumonia, asthma, lung cancer, pneumotorax)
Where is partial pressure of oxygen/ carbon dioxide the highest? Lowest?
What is the function of carbonic anhydrase?
How is our breathing regulated? (chemoreceptors, medulla oblongata)
How does the body respond to exercise?
Which receptors are more sensitive? Oxygen or carbon dioxide receptors?