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
Death rates from pancreatic cancer predicted to rise in Europe in 2014
Pancreatic cancer is the only cancer for which deaths are...
medicalxpress.com
Genetics explain why some boys and girls are bigger than others
The influence of genetic factors on differences between children's Body...
medicalxpress.com
Bioethicists use theatrical narratives to bridge the gap between society and science
A pair of bioethics experts have added "playwright" to their...
medicalxpress.com
The best toxicology lab: a mouse with a human liver
A few years ago, Stanford pharmacogenomic expert Gary Peltz, MD,...
scopeblog.stanford.edu
How Great the Breast Ca Risk After Radiation as Child?
(MedPage Today) -- Women who survived childhood cancers treated with...
medpagetoday.com
Income Tax Fraud Appears to Target Docs
(MedPage Today) -- Hundreds of doctors across several states and...
medpagetoday.com
Stem cells in circulating blood affect cardiovascular health, study finds
New research suggests that attempts to isolate an elusive adult...
medicalxpress.com
Rural microbes could boost city dwellers' health
The greater prevalence of asthma, allergies and other chronic inflammatory...
medicalxpress.com
FDA Considers Ban on 'Aversive' Shock Devices
(MedPage Today) -- An FDA advisory committee will consider on...
medpagetoday.com
Big Data in Biomedicine technical showcase to feature companies’ innovations related to big data
In an effort to spark collaboration among thought leaders across...
scopeblog.stanford.edu
People with mild cognitive impairment may die at higher rate than people without condition
Mayo Clinic research studying the relationship between death and the...
medicalxpress.com
Marijuana use may increase heart complications in young, middle-aged adults
Marijuana use may result in cardiovascular-related complications—even death—among young and...
medicalxpress.com
People with more education may recover better from traumatic brain injury
People with more years of education may be better able...
medicalxpress.com
Iron consumption can increase risk for heart disease, study says
A new study from the Indiana University School of Public...
medicalxpress.com
Cyber buddy is better than 'no buddy'
A Michigan State University researcher is looking to give exercise...
medicalxpress.com
Study Suggests Heart Risk From Smoking Pot (CME/CE)
(MedPage Today) -- A French study provided support for an...
medpagetoday.com
Pollutants from coal-burning stoves strongly associated with miscarriages in Mongolia
Burning coal for domestic heating may contribute to early fetal...
medicalxpress.com
ASTRO issues guideline on the role of postoperative radiation therapy for endometrial cancer
The American Society for Radiation Oncology (ASTRO) has issued a...
medicalxpress.com
MERS Watch: Saudi Numbers Up Again
(MedPage Today) -- Saudi Arabia is reporting 11 new cases...
medpagetoday.com
Review: sugar-sweetened drink intake tied to elevated BP
(HealthDay)—Sugar-sweetened beverage (SSB) intake is associated with elevated blood pressure...
medicalxpress.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 +