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Earwax, also known by the medical term cerumen, is a waxy substance secreted in the ear canal of humans and other mammals. Earwax can be many colors, including brown, orange, red, yellowish, and gray.
“A lot of people associate ear wax with being dirty or unclean, so there’s this kind of aggressive need to keep the ears cleaned out in some way, but we want a certain degree of wax in the ear ...
However, for some patients the ear is not as effective at self-cleaning due to the ear canal's size and shape (e.g., very narrow or curvy ear canals), surgical changes in the ear canal, or other ...
Ear wax, also known as cerumen, protects the ear from dust, bacteria, and small objects from entering and damaging the ear. It also provides a coating to protect the skin inside the ear canal from irritation from water during showers and water activities. [6] However, some individuals have more active glands which can produce more ear wax.
The ear canal (external acoustic meatus, external auditory meatus, EAM) is a pathway running from the outer ear to the middle ear.The adult human ear canal extends from the auricle to the eardrum and is about 2.5 centimetres (1 in) in length and 0.7 centimetres (0.3 in) in diameter.
Perilymph and endolymph have unique ionic compositions suited to their functions in regulating electrochemical impulses of hair cells necessary for hearing. The electric potential of endolymph is ~80-90 mV more positive than perilymph due to a higher concentration of potassium cations (K +) in endolymph and higher sodium (Na +) in perilymph. [4]
In humans and other tetrapods, both the middle ear and the ear canal are normally filled with air. Unlike the air of the ear canal, however, the air of the middle ear is not in direct contact with the atmosphere outside the body; thus, a pressure difference can develop between the atmospheric pressure of the ear canal and the middle ear.
Ear infections are more than just a pesky, painful condition. They can do a number on the auditory system and trigger tinnitus. "Ear infections can interfere with sound transmission, causing a ...
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