Differentiate between the following. a. Internal and external respiration b. Inhalation and exhalation c. Haemoglobin and oxyhaemoglobin
Answers
Answer:
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Explanation:
the transport of oxygen to the cells within tissues and the transport of carbon dioxide in the opposite direction.
LEARNING OBJECTIVES
Describe the four stages of external respiraton
KEY TAKEAWAYS
Key Points
External respiration describes the exchange of gasses between the external environment and the bloodstream.
The components of external respiration include alveolar surface area, ventilation and perfusion matching, and partial pressure gradients.
Partial pressure gradients allow gasses to flow from areas of high pressure to areas of lower pressure.
Ventilation and perfusion in the alveoli must be balanced to maintain efficient gas exchange.
Key Terms
passive diffusion: The net movement of material from an area of high concentration to an area of lower concentration without any energy input.
perfusion: The blood supply to the alveolar capillaries that must be balanced with ventilation.
Equilibrium: The rate of change of the gasses in the alveoli and capillary become equal to eachother at the end of gas exchange.