Quantcast Figure 1-6. Landmarks of right tympanic membrane. - Special Surgical Procedures

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
 
  
 
a. External Ear. The external ear consists of an auricle, or pinna, and an
external auditory meatus (a tube ending at the tympanic membrane or ear drum). The
auricle collects the sound vibrations in the air and sends them through the external
canal to the ear drum.
b. Tympanic Membrane. The tympanic membrane (see figure 1-6) is a tri-
layered membrane stretched across the end of the external meatus. The sound waves
come through the meatus and vibrate the membrane.
Figure 1-6. Landmarks of right tympanic membrane.
c. Middle Ear. Inside the tympanic membrane is a narrow, irregular, oblong,
air-conditioned cavity in the tympanic part of the temporal bone. This air-filled space
contains three small bones, which transfer the vibrations from the tympanic membrane
to the inner ear. Figure 1-7 shows the ossicles of the middle ear.
d. Inner Ear. The inner ear is a complex structure located in the petrous portion
of the temporal bone. It is made up of two distinct parts, each of which contains its own
kind of fluid. Sound vibrations carried by the bones of the inner ear are transferred by
way of the oval window to the fluid in the cochlea and received through a fine
membrane by the organ of Corti, the delicate neural end organ for sound. A second
function of the inner ear is the maintenance of balance, controlled by the movement of
fluid in the labyrinth in relation to neuroepithelial cells.
e. Temporal Bone. The temporal bone houses the middle and inner ear as well
as the mastoid sinuses.
MD0928
1-20



Medical News
First successful vaccination against 'mad cow'-like wasting disease in deer
Researchers at NYU Langone Medical Center and elsewhere say that...
medicalxpress.com
The Slippery Slope: A Bittersweet Diabetes Economy
(MedPage Today) -- From 2004 to 2013, none of the...
medpagetoday.com
Certolizumab Improves Productivity in RAPID-PsA Patients
(MedPage Today) -- Patients reported an increased quality of life...
medpagetoday.com
PodMed: A Medical News Roundup From Johns Hopkins (with audio)
(MedPage Today) -- This weeks topics include the Darwin awards...
medpagetoday.com
Recorded Ebola deaths top 7,000
The worst Ebola outbreak on record has now killed more...
medicalxpress.com
D.C. Week: New SG Confirmed, Demand Heavy for Exchange Plans
(MedPage Today) -- Lame duck Senate approves Vivek Murthy as...
medpagetoday.com
New Dominican law OKs abortion if life at risk
The Dominican Republic on Friday approved a law that for...
medicalxpress.com
Liberia holds Senate vote amid Ebola fears
Health workers manned polling stations across Liberia on Saturday as...
medicalxpress.com
FDA OKs Cubist antibiotic for serious infections
The Food and Drug Administration has approved a new medicine...
medicalxpress.com
Concerns raised about variable performance of some UK personal use breathalyzers
The ability of some breathalyzers widely sold to the UK...
medicalxpress.com
A winter break for Scope
Happy Holidays from all of us at Scope! We’re taking...
scopeblog.stanford.edu
Doc Groups Pan Meaningful Use Penalties
(MedPage Today) -- The program's "pass-fail" system is rigid and...
medpagetoday.com
Stanford dietitian explains how – not just what – you eat matters
Recent posts, including this one from last week and this...
scopeblog.stanford.edu
FDA approves AbbVie combo hepatitis C treatment
Patients with chronic hepatitis C have a new option for...
medicalxpress.com
Lost memories might be able to be restored, new study indicates
New UCLA research indicates that lost memories can be restored....
medicalxpress.com
AstraZeneca cancer drug, companion test approved
U.S. regulators on Friday granted accelerated approval to the first...
medicalxpress.com
Flu season, early again, hitting hard in South and Midwest
Health officials say the flu is now hitting hard in...
medicalxpress.com
Brazil to study legalization of medical marijuana
The Brazilian government says it will study the possibility of...
medicalxpress.com
Early exposure to antidepressants affects adult anxiety and serotonin transmission
About 15 percent of women in the United States suffer...
medicalxpress.com
Few Women Have Coverage for Egg Freezing
(MedPage Today) -- Such coverage is rare even for women...
medpagetoday.com
 


Privacy Statement - Copyright Information. - Contact Us

comments powered by Disqus

Integrated Publishing, Inc.
9438 US Hwy 19N #311 Port Richey, FL 34668

Phone For Parts Inquiries: (727) 755-3260
Google +