Outer ear
(Redirected from Intrinsic muscles of external ear)
Outer ear refers to the external part of the ear, which includes the pinna, the ear canal, and the eardrum. It plays a crucial role in the process of hearing by collecting sound energy and directing it to the middle and inner ear.
Anatomy[edit | edit source]
The outer ear consists of two main parts: the pinna (or auricle) and the external auditory canal.
Pinna[edit | edit source]
The pinna is the visible part of the ear that resides outside of the head. Its primary function is to collect sound, and includes the following parts: the helix, antihelix, concha, tragus, and lobule.
External Auditory Canal[edit | edit source]
The external auditory canal is a tube running from the outer ear to the middle ear. The adult human ear canal extends from the pinna to the eardrum and is about 2.5 cm in length and 0.7 cm in diameter.
Function[edit | edit source]
The outer ear serves several key functions in the hearing process. It helps in localizing sound sources, and it amplifies sound, particularly those frequencies associated with human speech.
Clinical significance[edit | edit source]
Conditions that can affect the outer ear include otitis externa, cellulitis, and earwax blockage. These conditions can lead to symptoms such as ear pain, hearing loss, and tinnitus.
See also[edit | edit source]
References[edit | edit source]
| Outer ear Resources | |
|---|---|
|
 |
Search WikiMD
Ad.Tired of being Overweight? Try W8MD's physician weight loss program.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro / Zepbound) available.
Advertise on WikiMD
|
WikiMD's Wellness Encyclopedia |
| Let Food Be Thy Medicine Medicine Thy Food - Hippocrates |
Translate this page: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
தமிழ்,
తెలుగు,
Urdu,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
বাংলা
European
español,
Deutsch,
français,
Greek,
português do Brasil,
polski,
română,
русский,
Nederlands,
norsk,
svenska,
suomi,
Italian
Middle Eastern & African
عربى,
Turkish,
Persian,
Hebrew,
Afrikaans,
isiZulu,
Kiswahili,
Other
Bulgarian,
Hungarian,
Czech,
Swedish,
മലയാളം,
मराठी,
ਪੰਜਾਬੀ,
ગુજરાતી,
Portuguese,
Ukrainian
Medical Disclaimer: WikiMD is not a substitute for professional medical advice. The information on WikiMD is provided as an information resource only, may be incorrect, outdated or misleading, and is not to be used or relied on for any diagnostic or treatment purposes. Please consult your health care provider before making any healthcare decisions or for guidance about a specific medical condition. WikiMD expressly disclaims responsibility, and shall have no liability, for any damages, loss, injury, or liability whatsoever suffered as a result of your reliance on the information contained in this site. By visiting this site you agree to the foregoing terms and conditions, which may from time to time be changed or supplemented by WikiMD. If you do not agree to the foregoing terms and conditions, you should not enter or use this site. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.
Contributors: Prab R. Tumpati, MD
