The structures of the inner ear are found in the bony labyrinth, a bony, hollow structure that is the most interior portion of the ear. The stapes transmits the vibrations to a thin diaphragm called the oval window, which is the outermost structure of the inner ear. Together they form a short chain that crosses the middle ear and transmits vibrations caused by sound waves from the eardrum membrane to the liquid of the inner ear. The mechanical energy from the moving tympanum transmits the vibrations to the three bones of the middle ear. anatomy Also known as: anvil Learn about this topic in these articles: ear bones In ear bone the malleus, or hammer, the incus, or anvil, and the stapes, or stirrup. The malleus is attached to the eardrum, picking up its vibrations and passing them on to the inner ear via. It is the ear bones that are important for hearing: the malleus, the incus and the stapes. The pressure waves strike the tympanum, causing it to vibrate. These are called the hammer, anvil and stirrup, or 'ossicles') the inner ear (cochlea and the organ of balance, called the 'vestibular system'). A Hammer, anvil and stirrup B Hammer, anvil and pinna C Pinna, hammer and stirrup D Eardrum, hammer and pinna Solution The correct option is A Hammer, anvil and stirrup Sound transfers to the ear canal from the outer part of the pinna and creates the ear to vibrate. When these pressure waves reach the ear, the ear converts this mechanical stimulus (pressure wave) into a nerve impulse (electrical signal) that the brain perceives as sound. This vibration must be transferred to the fluid in the. Compressional waves in air cause the tympanic membrane to vibrate. When sound travels through the ear canal, the eardrum vibrates. The fluid in the external ear canal is air. The malleus, incus, and stapes commonly referred to by their shapes as the hammer, anvil, and stirrup, respectivelyform an interconnected chain from the tympanic membrane (eardrum) to the oval window, which separates the middle ear from the inner ear. The more common names are hammer, anvil and stirrup. The tiny stapes bone attaches to the oval window that connects the middle ear to the inner ear. The formal name of the three bones are malleus, incus and stapes. The three bones are named after their shapes: the malleus (hammer), incus (anvil) and stapes (stirrup). They transfer vibration of the tympanic membrane to vibration of the fluid in the cochlea. There are three small bones (ossicles) that transfer the movement of the tympanic membrane (ear drum) caused by sound waves to the inner ear. These three bones are the smallest in the body and are collectively known as the ossicles. The three bones are the malleus ( hammer ), incus ( anvil ), and stapes ( stirrup ). Vibrating objects, such as vocal cords, create sound waves or pressure waves in the air. The middle ear is made up of the hammer, anvil, and stirrup bones. (credit: modification of work by Lars Chittka, Axel Brockmann) The organ of Corti, which is the organ of sound transduction, lies inside the cochlea. The middle ear contains three bones called ossicles that transfer the sound wave to the oval window, the exterior boundary of the inner ear. \): Sound travels through the outer ear to the middle ear, which is bounded on its exterior by the tympanic membrane.
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