Eustachian Tube

Cholesteatoma - diagnosing the unsafe ear

result of underlying Eustachian tube dysfunction, often dating from early childhood.2 With long standing Eustachian tube dysfunction, the most flaccid portion of the tympanic membrane is retracted and forms a pocket. The two weakest and most vulnerable parts of the tympanic membrane are its most superior aspect and the posterosuperior

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2 THE ANATOMY AND PHYSIOLOGY OF THE EAR AND …

The Eustachian tube is bony as it leaves the ear but as it nears the back end of the nose, in the nasopharynx, consists of cartilage and muscle. Contracture of muscle actively opens the tube and allows the air pressure in the middle ear and the nose to equalize.

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HEAD AND NECK

eustachian tube orifice. According to the AJCC, the posterior margins of the choanal orifices and of the nasal septum are included in the nasal fossa (which has no AJCC chapter), and are excluded from the nasopharynx staging system. However, all subsites listed above (except nasal fossa) are included in the nasopharynx Summary Stage chapter.

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Science Bowl Questions/Answers for General Science

ANSWER: EUSTACHIAN TUBE (pron: yu-sta-shen) GENR-91; Short Answer: Name the general type of mammal that gives birth to undeveloped young that are kept in pouches.

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ENT • CLINICAL PRACTICE Ear examination

ear is negative due to eustachian tube dysfunction, the tympanic membrane will move with less excursion and in a more sluggish fashion. Fluid in the middle ear results in minimal or no movement of the tympanic membrane. In this case, the only observable movement may be a slight outward displacement of the outer cartilaginous external canal.

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SENSE ORGANS HANDOUT - soinc.org

Eustachian tube – connects middle ear to throat and equalizes pressure on eardrum Cochlea – in inner ear – has receptors for sound & sends signals to brain via Auditory Nerve Process of hearing: • Sound waves enter your outer ear and travel through your ear canal to the middle ear.

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30 Health Assessment - Pearson

Chapter 30 ˜ Health Assessment 515 # 153613 Cust: Pearson Au: Berman Pg. No. 515 Title: Kozier & Erb’s Fundamentals of Nursing 10e C/M/Y/K Short / Normal S4CARLISLEDESIGN SERVICES OF Publishing Services