• The middle ear includes the tympanic cavity and the three ossicles. (wikipedia.org)
  • The middle ear contains the three small bones-the ossicles-involved in the transmission of sound, and is connected to the throat at the nasopharynx, via the pharyngeal opening of the Eustachian tube. (wikipedia.org)
  • The vestibule contains two communicating sacs (utricle and saccule) of the balancing apparatus. (lookformedical.com)
  • The ear canal of the outer ear is separated from the air-filled tympanic cavity of the middle ear by the eardrum. (wikipedia.org)
  • The middle ear consists of the tympanic cavity, an air-filled cavity whose outer walls form the tympanic membrane (eardrum), and communicates proximally with the nasopharynx by the Eustachian tubes, which maintain pressure equilibrium on either side of the tympanic membrane. (cloudaccess.net)
  • They are set at right angles to each other and are situated posterosuperior to the vestibule of the bony labyrinth (VESTIBULAR LABYRINTH). (lookformedical.com)
  • The ear muscles are supplied by the facial nerve, which also supplies sensation to the skin of the ear itself, as well as to the external ear cavity. (wikipedia.org)
  • The external ear, also called the 'pinna' or 'auricle', is designed mainly to capture the sound waves. (mskneurology.no)
  • The outer ear consists of the pinna and the ear canal. (wikipedia.org)
  • The pinna consists of the curving outer rim called the helix, the inner curved rim called the antihelix, and opens into the ear canal. (wikipedia.org)
  • The outer ear consists of the auricle, a cartilaginous skin-covered structure, and the external auditory canal, an irregularly-shaped cylinder approximately 25 mm long which is lined by glands secreting wax. (cloudaccess.net)
  • The ear canal ends at the external surface of the eardrum. (wikipedia.org)
  • The eustachian tube's main role is to equalize the pressure between the in- and outside of the ear, i.e on both sides of the eardrum. (mskneurology.no)
  • Increased pressure in the middle ear, usually due to inability of the eustachian tube to open, will restrict vibrations in the eardrum and thus also dampen hearing. (mskneurology.no)
  • The middle ear also connects to the upper throat at the nasopharynx via the pharyngeal opening of the Eustachian tube. (wikipedia.org)
  • This transport mechanism (i.e the mucociliary transport mechanism) drains mucus away from the middle ear, and into the nasopharynx via the eustachian tube, thus preventing infection from occurring in the middle ear. (mskneurology.no)
  • Two sets of muscles are associated with the outer ear: the intrinsic and extrinsic muscles. (wikipedia.org)
  • The ear is a very complex network of structures which contribute both to our sense of hearing as well as balance, i.e the vestibular system. (mskneurology.no)
  • There are three main segments of the ear, namely the external, middle and inner portions. (mskneurology.no)
  • The ear may be affected by disease, including infection and traumatic damage. (wikipedia.org)
  • The ears of vertebrates are placed somewhat symmetrically on either side of the head, an arrangement that aids sound localization. (wikipedia.org)
  • The ear is the sensory organ responsible for hearing and the maintenance of equilibrium, via the detection of body position and of head movement. (cloudaccess.net)
  • The great auricular nerve, auricular nerve, auriculotemporal nerve, and lesser and greater occipital nerves of the cervical plexus all supply sensation to parts of the outer ear and the surrounding skin. (wikipedia.org)
  • An ear is the organ that enables hearing and (in mammals) body balance using the vestibular system. (wikipedia.org)
  • The body and crus breve are situated in the recessus epitympanicus. (co.ma)
  • The brain accomplishes this by comparing arrival-times and intensities from each ear, in circuits located in the superior olivary complex and the trapezoid bodies which are connected via pathways to both ears. (wikipedia.org)
  • while the superior canal of one ear is nearly parallel to the posterior canal of the other. (co.ma)
  • The middle ear contains the three small bones-the ossicles-involved in the transmission of sound, and is connected to the throat at the nasopharynx, via the pharyngeal opening of the Eustachian tube. (wikipedia.org)
  • The middle ear also connects to the upper throat at the nasopharynx via the pharyngeal opening of the Eustachian tube. (wikipedia.org)
  • Since the outer ear is the only visible portion of the ear in most animals, the word "ear" often refers to the external part alone. (wikipedia.org)
  • Two sets of muscles are associated with the outer ear: the intrinsic and extrinsic muscles. (wikipedia.org)
  • The great auricular nerve, auricular nerve, auriculotemporal nerve, and lesser and greater occipital nerves of the cervical plexus all supply sensation to parts of the outer ear and the surrounding skin. (wikipedia.org)
  • Sound waves are captured by the outer ear which are funneled into the external auditory meatus which functions as an impedance transformer that facilitates transmission of airborne sound into vibrations of the fluid in the cochlea. (evokedpotential.com)
  • Its proper function depends on air pressure in the middle ear cavity being equal to the ambient pressure, facilitated by the opening and closing of the eustachian tube which connects from each ear bilaterally to the posterior roof of mouth. (evokedpotential.com)
  • H ydraulic transduction (middle ear to endolymph) converts mechanical signals to fluid displacement. (evokedpotential.com)
  • The ear muscles are supplied by the facial nerve, which also supplies sensation to the skin of the ear itself, as well as to the external ear cavity. (wikipedia.org)
  • while the superior canal of one ear is nearly parallel to the posterior canal of the other. (co.ma)
  • An ear is the organ that enables hearing and (in mammals) body balance using the vestibular system. (wikipedia.org)
  • The ear is a self cleaning organ through its relationship with earwax and the ear canals. (wikipedia.org)
  • Diseases of the ear may lead to hearing loss, tinnitus and balance disorders such as vertigo, although many of these conditions may also be affected by damage to the brain or neural pathways leading from the ear. (wikipedia.org)
  • The brain accomplishes this by comparing arrival-times and intensities from each ear, in circuits located in the superior olivary complex and the trapezoid bodies which are connected via pathways to both ears. (wikipedia.org)
  • The ears of vertebrates are placed somewhat symmetrically on either side of the head, an arrangement that aids sound localization. (wikipedia.org)
  • The symmetrical arrangement of the two ears allows for the localisation of sound. (wikipedia.org)