Otology
The study and medical care of the ear.
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- Otopharyngeal tube
the upper part called the nasopharynx, the middle part called the oropharynx, and the lower part called the hypopharynx. The Eustachian tube opens into the nasopharynx. The Eustachian tube measures only 17-18mm and is horizontal at birth. As it grows to double that length, it grows to be at an incline of 45 degrees in […]
- Otoplasty
Plastic surgery to reshape the outer ear.
- Otosclerosis
The abnormal formation of new bone in the middle ear that gradually immobilizes the stapes (stirrup bone) and prevents it from vibrating in response to sound, causing a progressive conductive loss of hearing. Otosclerosis usually affects both ears. It is a common disorder, especially among young women. Pregnancy may trigger it.
- Otoscope
An instrument for looking in the ear.
- Ounce
A measure of weight equal to 1/16th of a pound or, metrically, 28.35 grams. The abbreviation for ounce is oz.