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
Vietnam battles fatal measles outbreak
Vietnam is scrambling to contain a deadly outbreak of measles...
medicalxpress.com
New clues on tissue scarring in scleroderma
A discovery by Northwestern Medicine scientists could lead to potential...
medicalxpress.com
Tobacco use varies widely among Asian and Pacific Islanders in US
While past research has shown that, as a whole, Asian...
medicalxpress.com
Parkinson's treatment revisited to avoid adverse effects
Parkinson's disease modifies a crucial circuit of the central nervous...
medicalxpress.com
Common links between neurodegenerative diseases identified
The pattern of brain alterations may be similar in several...
medicalxpress.com
'Brain training' overcomes tics in Tourette syndrome, study finds
(Medical Xpress)—Children with Tourette Syndrome (TS) may unconsciously train their...
medicalxpress.com
Research could improve understanding of risky behavior, addiction
(Medical Xpress)—It follows logically: If you are unable to predict...
medicalxpress.com
FDA OKs Ragwitek Hay Fever Tablet
(MedPage Today) -- The FDA approved the ragweed allergy treatment...
medpagetoday.com
Autonomy and relationships among 'good life' goals
Young adults with Down syndrome have a strong desire to...
medicalxpress.com
COPD patient returns to active lifestyle thanks to pulmonary rehabilitation
In the waiting room at UK HealthCare's Pulmonary Rehabilitation Clinic...
medicalxpress.com
Scientists unlock key to the sound of blood pressure reduction in a traffic jam
Liverpool John Moores University (LJMU) has released key findings into...
medicalxpress.com
Diagnosing and treating autism
April is National Autism Awareness Month. The Child Development Clinic...
medicalxpress.com
Researchers find new method to combat common childhood illness
Almost all children are infected with respiratory syncytial virus by...
medicalxpress.com
Education, breastfeeding and gender affect the microbes on our bodies
Trillions of microbes live in and on our body. We...
medicalxpress.com
The effects of rapid diagnostic tests for malaria in African healthcare settings
Researchers from the Cochrane Infectious Diseases Group conducted a review...
medicalxpress.com
The diabetes detectives: Two papers on groundbreaking research into hypoglycemia detection
To the casual observer, the 14-year-old kicking a ball around...
medicalxpress.com
Leeches help save woman's ear after pit bull mauling
(HealthDay)—A pit bull attack in July 2013 left a 19-year-old...
medicalxpress.com
Legal claims rising for laser surgery by nonphysicians
(HealthDay)—Legal claims related to cutaneous laser surgery performed by nonphysician...
medicalxpress.com
West Africa's Ebola outbreak has claimed 137 lives
The World Health Organization says an Ebola virus outbreak in...
medicalxpress.com
Chronic inflammation linked to 'high-grade' prostate cancer
Men who show signs of chronic inflammation in non-cancerous prostate...
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 +