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Ear 19 mehr
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- 7. Pars flaccida Handle of malleus Parstensa . Cone of light
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- 9. Blood & NerveSupply of Tympanic Membrane • 1- Nerve Supply: • A- Outer surface: is supplied by auriculo- temporal and auricular branch of vagus. • B- Inner surface: tympanic plexus. • 2- Blood Supply: • 1- Outer surface: deep auricular artery. • 2- Inner surface: from anterior tympanic artery. .
- 10. Outer aspect of tymoanic membrane Handleof malleus Cone of light .
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- 13. Epitympani c recess Tympanic cavity Partsof middle ear cavity .
- 14. Roof Floor Posterior wall Medial wall Walls ofmiddle ear Anterior wall .
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- 16. Roof Tegman tympani Floor Tympanic br.Of Glosso- pharyngeal n. Int. jugular vein Roof & Floor .
- 17. Anterior wall Promontory Tympanic plexus Oval window Posterior wall Round window Br. From sympathetic plexusaround I.C.A. Tympanic br. Of 9th CN Canal for facial N. Medial wall .
- 18. Roof Floor Posterior wall Tensor tympani m. Auditory tube Sympathetic plexus Anteriorwall Anterior wall . Internal carotid art.
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- 20. Ear drum Lateral wall Externalauditory meatus .
- 21. Contents of middleear 1 Ossicles: Malleus, incus and stapes. 2 Muscles: Tensor tympani & Stapedius. 3Nerves: Tympanic plexus and chorda tympani. 4 Blood vessels: Tympanic arteries. .
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- 23. Incus Stapes Ossicles Head Handle Body Long process Head Neck Shortprocess Anterior process Foot plate Malleus. Limbs
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- 25. Middle ear Lateral wall ofnaso- pharynx Pharyngo- tympanic tube .
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- 31. saccule Utricle Cochlear duct Semicircular ductsMembranous labrynith . Endolymphatic duct
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- 35. Transmission of sound Oval Incuswindow Malleus Stapes . Tympanic membrane Round window closed with 2dry tympanic membrane
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- 37. Applied Anatomy 1 Otitismedia. 2 Intracranial injury of facial n. -At internal auditory meatus. -At medial wall of middle ear. 3 High tone deafness. .