Question

multiple select question
select all that apply
choose all that are the functions of the respiratory system.
control of na+ plasma levels
exchange of o₂ and co₂
allows air passage
detection of odors
sound production

Explanation:

• The respiratory system's main function is gas exchange ($O_2$ and $CO_2$).
• It also allows air passage.
• The nose (part of the respiratory system) can detect odors.
• The larynx (part of the respiratory system) is involved in sound production.
• Control of $Na^+$ plasma levels is mainly a function of the urinary system, not the respiratory system.

Answer:

• exchange of $O_2$ and $CO_2$
• allows air passage
• detection of odors
• sound production