| 2.4 | The Adaptation In The Respiratory System |
| Definition |
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The diversity of adaptations in the respiratory systems of animals differs from those of humans |
The variety of adaptations in the respiratory system of animals:
| Animals, organ and features |
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Fish - Gills Features: - Consists of fine and numerous filaments or rapid gas permeation - Filaments have many blood capillaries for effiecient gas exchange |
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Insects - Trachea Features: - Consists of a branched tube system - The tip of the tracheolus is thin-walled and moist for the gas to dissolve directly into the cell - A large number of tracheols and a large surface area cause gas exchange by brief diffusion |
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Frogs/amphibians - Outer skin and lungs Features: - The outer skin of amphibians is thin and permeable for easy and fast gas permeation - Always moist because it is covered with mucus that dissolves respiratory gases - Many blood capillaries transport respiratory gases to body cells |
The adaptation of the human respiratory system in different situations:
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The human respiratory system is able to adapt to the needs such as being at the top of a high mountain where the atmospheric pressure is low and difficulty breathing
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Respiratory rates vary according to different situations such as on the ocean floor where high pressure and difficulty breathing requires an oxygen tank
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Regular exercise can strengthen the heart and respiratory system to function efficiently such as running or swimming athletes who have an increased cellular respiration rate and heart rate
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A healthy lifestyle such as not smoking is also important to keep the respiratory system functioning properly
The anemia and sickle cell anemia:
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Patients with anemia |
Patients with sickle cell anemia |
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- Suffering from iron mineral deficiency due to lack of haemoglobin - Lack of oxygen is caused by a lack of haemoglobin - Becomes pale, lacks energy, and faints easily |
- Sickle-shaped blood cells - The surface area is small and less than normal haemoglobin - Lack of oxygen is transported to the body’s cells causing paleness and lack of energy |
