Tympanic membrane diagram

• العربية • Bân-lâm-gú • Bosanski • Català • Чӑвашла • Čeština • Cymraeg • Dansk • Deutsch • Eesti • Ελληνικά • Español • Euskara • فارسی • Français • Gaeilge • Galego • 한국어 • Bahasa Indonesia • Italiano • Қазақша • Kurdî • മലയാളം • 日本語 • Norsk bokmål • Norsk nynorsk • Polski • Português • Română • Русский • Slovenčina • Slovenščina • Српски / srpski • Srpskohrvatski / српскохрватски • Suomi • Svenska • తెలుగు • ไทย • Türkçe • Українська • Tiếng Việt • 中文 • v • t • e The middle ear is the portion of the The mammalian middle ear contains three The primary function of the middle ear is to efficiently transfer acoustic energy from Structure [ ] Ossicles [ ] The middle ear contains three tiny bones known as the hammer, anvil, and stirrup, respectively. The ossicles directly couple sound energy from the eardrum to the The ossicles are classically supposed to mechanically convert the vibrations of the The middle ear efficiency peaks at a frequency of around 1kHz. The combined Muscles [ ] Main articles: The movement of the ossicles may be stiffened by two muscles. The Nerves [ ] Of surgical importance are two branches of the Function [ ] Sound transfer [ ] Ordinarily, when sound waves in air strike liquid, most of the energy is reflected off the surface of the liquid. The middle ear allows the The middle ear couples sound from air to the fluid via the The middle ear is able to dampen sound conduction substantially when faced with very loud sound, by noise-induced reflex contracti...

The Ear and Hearing Ear and Hearing This is an active graphic. Click anywhere on it for more detail. R Nave The Outer Ear Sound energy spreads out from its sources. For a point source of sound, it spreads out according to the The outer ear structures act as part of the ear's The auditory canal acts as a R Nave The Tympanic Membrane The tympanic membrane or "eardrum" receives vibrations traveling up the auditory canal and transfers themthrough the tiny The eardrum is some fifteen times larger than the The tympanic membrane is very thin, about 0.1 mm, but it is resilient and strong.(Zemlin) It is made up of three layers: the outer layer of skin, a layer of fibrous connective tissue, and a layer of mucous membrane.(Clark & Martin) Active graphic You may reach information about the nearby structures of the ear by clicking on the item of interest on the illustration. R Nave

Patch myringoplasty is the shortest and simplest procedure. In patch myringoplasty, paper or gel is used to temporarily cover the hole in the eardrum, prompting the body to close the hole on its own. One study that compared material used in the procedure found that there was no significant difference in closure rates based on which material was used.

Watch tympanic membrane and auditory ossicles transmit sound wave vibrations to the human inner ear The thin semitransparent tympanic annulus, which almost encircles it and holds it in place. The uppermost small area of the membrane where the ring is open, the pars flaccida, is slack, but the far greater portion, the pars tensa, is tightly stretched. The appearance and mobility of the tympanic membrane are important for the The entire tympanic membrane consists of three layers. The outer layer of skin is continuous with that of the external canal. The inner layer of mucous membrane is continuous with the lining of the tympanic cavity of the middle ear. Between these layers is a layer of fibrous tissue made up of circular and radial fibres that give the membrane its stiffness and tension. The membrane is well supplied with Middle-ear cavity The cavity of the epitympanum above. These chambers are also referred to as the Animal Factoids The malleus consists of a handle and a fossa incudis, in the rear wall of the cavity. The long process of the incus is bent near its end and bears a small bony knob that forms a loose ligament-enclosed joint with the head of the stapes. The stapes is the smallest bone in the body. It is about 3 mm (0.1 inch) long and weighs scarcely 3 mg (0.0001 ounce). It lies almost horizontally, at right angles to the process of the incus. Its base, or footplate, fits nicely in the oval window and is surrounded by the elastic annular ligament, although it r...

A – Pars flaccida B – Short process of malleus C – Pars Tensa (anterior superior quadrant) D – Manubrium of malleus E – Umbo F – Light reflex G – Pars Tensa (anterior inferior quadrant) H – Promontory of cochlea I – Grains of sand K – Round window niche L – Pars Tensa (posterior inferior quadrant) M – Incus (lenticular process) N – Chorda tympani O – Incudostapedial joint P – Incus (long process) Q – Pars Tensa (posterior superior quardrant)

​The human ear can be divided into three sections. Each section performs a different rolein transmitting sound waves to the brain. • Outer ear • Middle ear • Inner ear View the diagrams below to learn more about the different sections of the ear and how we hear. Parts of the Outer Ear​ The outer ear consists of the visible portion on the side of the head, known as the pinna [1], and the external auditory canal (ear canal) [2]. The purpose of the pinna is to catch sound waves, amplify them slightly, and funnel them down the ear canal to the tympanic membrane (eardrum) [3].The tympanic membrane is a very thin structure that separates the outerear canal from the middle ear space. Parts of the Middle Ear The middle ear is an air-filled cavity that sits between the tympanic membrane [3]and the inner ear.The middle ear also consists of three tiny bones called ossicles [4], the round window [5], the oval window [6], and the Eustachian tube [7]. Ossicles and Their Function • ​​Malleus (commonly known as the hammer) • Incus (commonly known as the anvil) • Stapes (commonly known as the footplate, or stirrup) One end of the malleusis attached to the tympanic membrane and the other endis attached to the incus. The incus isattached to the stapes. The base of the stapesis located in a depression called the oval window [6]. The oval window membrane is one of two membranes that separate the middle ear space from the inner ear. The other is the round window membrane. The Eustachian tube [7...

The eardrum acts as a natural boundary between the middle ear and the ear canal. Pressure in the middle ear is maintained through the Eustachian tubes, which are closed when not in use. Each time a person swallows, the Eustachian tubes open and allow fresh air to enter into the tympanic cavity. This maintains a constant pressure gradient. Sometimes, this pressure is not equalized with the environment outside the head, and this is often the reason why some people experience discomfort in airplanes and at higher elevations The cavity also plays a very important role in a person’s ability to hear. Inside the middle ear, three small bones (ossicles) form a chain and conduct sound vibrations from the eardrum to the inner ear. Once in the fluid-filled inner ear, sounds are converted into nerve impulses and sent to the brain. Last medically reviewed on January 21, 2018

Synonyms: External auditory meatus, External acoustic pore , The ear is a complex part of an even more complex sensory system. It is situated bilaterally on the • • • Key facts about the ear Function Hearing and maintaining balance External ear Parts: auricle, external acoustic meatus, tympanic membrane Function: capture and conduction of sound Middle ear Parts: tympanic cavity, auditory ossicles, muscles of the ossicles Function: transforming a high-amplitude low-force sound wave into a low-amplitude high-force vibration and transmitting it to the internal ear Internal ear Parts: bony labyrinth (vestibule, semicircular canals, cochlea) and membranous labyrinth (utricle, saccule, semicircular ducts, cochlear duct) Function: - Bony labyrinth supports its membranous counterparts - Utricle and saccule provide information about the position of the head - Semicircular ducts provide information about movements of the head - Cochlear duct provides hearing information Clinical relations Auricular hematoma, otitis (externa, media, interna), blockage of the auditory (Eustachian) tube, high tone deafness This mixture of + Show all External ear The external ear, like the middle ear, serves only to conduct sound to the inner ear. It consists of the auricle and external acoustic meatus (or ear canal). Key facts about the external ear Parts Auricle, external acoustic meatus Blood supply Posterior auricular, anterior auricular, minor branches of the occipital, deep auricular, stylomast...

Overview Ear anatomy overview. Bottom: Inner ear details. What is the inner ear? What we think of as the “ear” is actually a three-part structure. The outer ear is the part you see and your ear canal. The middle ear is a box-shaped area behind the tympanic membrane (eardrum) that includes the three smallest bones in your body. And the inner ear is just beyond the middle ear, in a small hole in the temporal bones that help make up the sides of your skull. Function What does the inner ear do? Your inner ear has two tasks: Making it possible for you to hear and helping you keep your Your inner ear is the last stop that sound waves make in a carefully orchestrated journey that starts from your outer ear. These waves travel from your outer ear through your middle ear to your inner ear. In the inner ear, the sound waves are converted into electrical energy, which your hearing nerve delivers to your brain as sound, making it possible for you to hear. At the same time, your inner ear monitors your movements, alerting your brain to changes so your brain can let your body know what to do to stay balanced. Anatomy What are the parts of the inner ear? Your inner ear has three main parts: your cochlea, semi-circular canals (labyrinth) and your vestibule. Your cochlea supports your hearing and your vestibule and semi-circular canals support your balance. What is the cochlea? Your cochlea is filled with fluid and shaped like a snail, tapering from a wide end called the base to a narrow h...