what is the function of the anvil in the ear?

Answer 1

it works as part of the system that transfers the sound from the eardrum to the sound processing in your brain.

Answer 2

the anvil is to rap on the receptors of the ear so the the sound can be read

Answer 3

Balance

Answer 4

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EAR Origin: ectoderm. Function: In auditory system - perception of sound In vestibular system - maintenance of balance. EXTERNAL EAR is composed of an auricle and external auditory meatus Auricle: Location: oval-shaped appendage on the lateral surface of the head. Function: sound localization and amplification. Composition: thin skin with hair follicles, sweat glands, and sebaceous glands covers supporting structure of elastic cartilage. External Auditory Meatus(Canal): Location: between the auricle and tympanic membrane Composition: skin that contains hair follicles, ceruminous - modified sweat glands, and sebaceous glands covers supporting structure of elastic cartilage (lateral one-third) or bone (medial two-thirds) MIDDLE EAR is an air-filled tympanic cavity in the temporal bone with three small bones inside (auditory ossicles) and two openings in the medial wall - vestibular (oval) window and cochlear (round) window. It contains an auditory (Eustachian) tube TYMPANIC MEMBRANE (EARDRUM) Location: separates the external auditory canal from the middle ear Function: sound in the form of airwaves causes the membrane to vibrate, and these vibrations are transmitted to the attached auditory ossicles Composition: the layers from outside to inside The epidermis of skin Radially and circularly arranged collagen fibers Mucous membrane covered by simple squamous epithelium AUDITORY OSSICLES Location: cross the space of middle ear in series and connect the tympanic membrane to the oval window Function: help to convert sound waves (vibrations in air) to mechanical (hydraulic) vibrations in tissues and fluid-filled chambers Composition: movable joints connect the bones: Malleus (hammer), attached to the tympanic membrane Stapes (stirrup), whose footplate fits into the oval window Incus (anvil), linking the malleus to the stapes AUDITORY (EUSTACHIAN) TUBE Location: connects the middle ear to the nasopharynx Function: allow pressure in the middle ear to equilibrate with atmospheric pressure. Composition: lined with ciliated pseudostratified columnar epithelium with small mass of lymphatic tissue CRISTAE AMPULLARIS Location: three sensory regions of the semicircular ducts in the ampullae of the semicircular canals Function: sensors of angular movement Composition: the ridge of epithelium that is oriented perpendicular to the long axis of the semicircular canal Cells: Hair cells - nonneuronal mechnoreceptors with 50-100 stereocilia (sensory hairs) - modified microvilli. They are associated with both afferent and efferent nerve endings Type I hair cells - piriform in shape with a rounded base Type II hair cells - cylindrical in shape Supporting epithelial cells Cupula - gelatinous structure projects into the lumen and is surrounded by endolymph. MACULAE Location: saccule and utricle of the vestibule Function: sensors of gravity and liner movement Composition: the innervated sensory thickenings of the epithelium facing the endolymph Cells: {#hair} Hair cells - nonneuronal mechanoreceptors with 50-100 stereocilia (sensory hairs) - modified microvilli and single true cilium - kinocilium. They are associated with both afferent and efferent nerve endings Type I hair cells - piriform in shape with a rounded base Type II hair cells - cylindrical in shape Supporting epithelial cells Otolithic membrane - gelatinous material with otoliths - 3-5mkm crystalline particles of calcium carbonate and protein SCALA MEDIA (COCHLEA DUCT) Location: the middle compartment in the cochlear canal Composition: appears in transverse section as a triangular space. The most acute angle is attached to a bony extension of the modiolus The upper wall is the vestibular (Reissner's) membrane -two layers of squamous epithelial cells The lateral or outer wall is the stria vascularis - thick pseudostratified epithelium rich in blood vessels, the site of synthesis of endolymph The lower wall or floor is the basilar membrane - a dense mat of collagenic and some elastic fibers on which organ of Corti rests ORGAN OF CORTI Location: on the floor of scala media Function: sound perception Composition: complex epithelial layer Cells: Inner (close to the stria vascularis) hair cells with 50-100 stereocilia and outer hair cells with 100-300 stereocilia are arranged in the rows of cells Inner (close to the stria vascularis) and outer phalangeal (supporting) cells - completely surround the basal portions of sensory cells, preventing them from touching the basilar membrane Pillar cells - form a triangular-shaped tunnel of Corti with cortilymph Tectorial membrane extends over the hair cells and attaches to the stereocilia. It consists of ground substance and collagen fibers I cant post everything here.....:-/ REFER FIRST TWO LINKS FOR EAR AND LAST TWO LINKS FOR EYE! REFER SECOND AND FOURTH LINK FOR FUNCTIONS!