The part of the human ear that conducts air between the middle ear and the back of the throat to equalize pressure on either side of the eardrum is called the eustachian tube.
Eustachian tube connects the middle ear with the nasal cavity. It allows pressure release of the middle ear, preventing trauma that caused by high pressure differences called barotrauma. Eustachian tube is normally closed to prevent bacteria inside nasal cavity enter the ear. It only opened in a certain condition like swallowing.
Answer:
The flow/transfer of energy would be A) sound-electrical-sound
Explanation:
When you are talking on the telephone, you speak, which produces sound. The telephone picks up this energy and converts it to electrical signals, which are then converted back to sound on the other end of the line, thus the answer to your question being A) sound-electrical-sound
The most popular injectable augmentation product is a hyaluronic acid-based filler because it is more effective and safe than other injection fillers. Although the problem of infected filler is well established, it is unclear how long the filler will last before being absorbed. A case of hyaluronic acid-based filler-exacerbated facial cellulitis that occurred 2.5 years after filler administration was presented.
<h3>What are Injectable filler ?</h3>
Injectable filler is a soft tissue filler that can be injected into the skin at various depths to smooth out facial wrinkles, add volume to the face, and enhance facial characteristics.
- When it comes to filling up wrinkles, creases, and sagging skin, hyaluronic acid fillers are a fantastic alternative. The procedure is not overly intrusive, the results show up right away, and it takes six to 18 months to complete.
Learn more about Injectable filler here:
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Answer:
Explanation:
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