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Question

Given below is an example of a certain structure and its special functional activity. On a similar pattern fill in the blanks with suitable functions.

Examples: Chloroplast and Photosynthesis

Eustachian tube and _______________.


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Solution

Eustachian tube:

  1. The eustachian tube is a canal that connects the middle ear to the nasopharynx (upper throat and back of the nasal cavity).
  2. Its purpose is to keep the pressure within the middle ear stable and equivalent to the air pressure outside the body.

Final answer: Eustachian tube and equalization of air pressure on both sides of the eardrum.


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