Tympanic Membrane
Tympanic Membrane - Related Videos
01:14
Assessing Body Temperature - Tympanic membrane
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2024
Assessing tympanic membrane temperature involves using a tympanic membrane thermometer (TMT). Here is a step-by-step guide: Step 1: Begin by practicing good hand hygiene to prevent the transmission of microorganisms. Step 2: Turn on the thermometer and wait until the ready sign appears on the screen to ensure accurate measurement. Step 3: Slide the probe cover in place to prevent cross-contamination. Step 4: Instruct the patient to tilt their head to the side for comfort and check for cerumen...
09:52
Trans-Tympanic Drug Delivery for the Treatment of Ototoxicity
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Cited by 12 •
2018
We present a technique for localized administration of drugs through the trans-tympanic route into the cochlea. Drug delivery through this route would not interfere with the anti-cancer efficacy of the chemotherapeutic drugs such as cisplatin.
20:21
Use of a Robot for High-throughput Crystallization of Membrane Proteins in Lipidic Mesophases
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Cited by 47 •
2012
Herein is described a robotic approach to high-throughput crystallization of membrane proteins in lipidic mesophases for use in structure determination using macromolecular X-ray crystallography. Three robots capable of handling the viscous and sticky protein-laden mesophase integral to the method are introduced.
22:00
Crystallizing Membrane Proteins for Structure Determination using Lipidic Mesophases
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Cited by 48 •
2010
Herein is described the procedure implemented in the Caffrey Membrane Structural and Functional Biology Group to set up manually crystallization trials of membrane proteins in lipidic mesophases.
08:46
Green Fluorescent Protein-based Expression Screening of Membrane Proteins in Escherichia coli
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Cited by 34 •
2015
A streamlined approach to screening for the expression of recombinant membrane proteins in Escherichia coli based on fusion to green fluorescent protein is presented.
FAQs
The membrane’s connection to the malleus links its vibration to the remaining auditory ossicles, allowing sound energy to continue toward the middle ear. If this mechanical pathway is affected, clinicians may consider a conductive hearing loss. Examining the membrane therefore provides information about a structure that participates directly in sound transmission, not merely the external ear canal.
Mobility indicates how freely the tympanic membrane responds during clinical examination. Reduced or altered movement can support concern for middle-ear abnormalities, including fluid accumulation. Because mobility complements observations of color, contour, and integrity, it helps clinicians interpret whether an apparent hearing problem may involve impaired mechanical transmission within or around the middle ear.
The membrane’s position and contour can reflect pressure conditions in the middle ear. Retraction is one clinically relevant appearance that may signal an abnormal relationship between the membrane and the space behind it. Assessing these features helps distinguish pressure-related changes from other findings and contributes to a more complete otoscopic evaluation.
Scarring and perforation represent different abnormalities of membrane integrity and appearance. Scarring is identified as a change in the membrane’s tissue appearance, whereas perforation indicates a defect in its continuity. Recognizing the distinction matters because otoscopic findings are used to identify disease, assess possible conductive hearing loss, and guide treatment planning.
An otoscopic examination evaluates the membrane’s color, contour, mobility, and integrity. Clinicians consider these features together rather than relying on a single visual characteristic, because each provides different information about pressure, fluid, tissue change, or structural damage. The combined findings support identification of otitis media, fluid accumulation, retraction, scarring, and perforation.
Findings from the membrane can help determine whether altered sound transmission may involve the middle ear. Changes such as abnormal mobility, retraction, scarring, or perforation provide clinical clues that can be considered alongside the patient’s hearing status. This information supports diagnostic assessment and helps clinicians plan appropriate management for suspected conductive hearing loss.