• it presents the anterior or internal opening of the carotid canal, and forms the postero-lateral boundary of the foramen lacerum. (wikipedia.org)
  • The portion above the crista falciformis presents behind, the area cribrosa superior, pierced by a series of small openings, for the passage of the nerves to the utricle and the superior and lateral semicircular ducts, and, in front, the area facialis, with one large opening, the commencement of the canal for the facial nerve (aquƦductus Fallopii). (wikipedia.org)
  • Ridge separating the tractus spiralis foraminosus from the area cribrosa media Area cribrosa media, with (7') orifices for nerves to saccule Foramen singulare. (wikipedia.org)
  • Its base corresponds with the area cochleƦ on the fundus of the internal acoustic meatus, and exhibits the tractus spiralis foraminosus, which transmits the nerves for the basal and central coils of the cochlea and the foramen centrale, which gives passage to the nerves for the apical coil. (co.ma)
  • Greater and lesser palatine foramina (for palatine nerves and arteries) and posterior nasal spine Vomer 1. (slideshare.net)
  • Lingula: projection anterior to mandibular foramen 8. (slideshare.net)
  • while the superior canal of one ear is nearly parallel to the posterior canal of the other. (co.ma)
  • Anatomically, the ear can be divided into 3 parts: the outer ear, the middle ear Middle ear The space and structures directly internal to the tympanic membrane and external to the inner ear (labyrinth). (lecturio.com)
  • The middle ear Middle ear The space and structures directly internal to the tympanic membrane and external to the inner ear (labyrinth). (lecturio.com)
  • Finally, the inner ear contains the bony labyrinth, along with other structures essential for spatial orientation Spatial orientation Change in position or alignment in response to an external stimulus. (lecturio.com)
  • Utricle Utricle A membranous sac within the vestibular labyrinth of the inner ear. (lecturio.com)
  • They are set at right angles to each other and are situated posterosuperior to the vestibule of the bony labyrinth (vestibular labyrinth). (lecturio.com)
  • The ear is a sensory Sensory Neurons which conduct nerve impulses to the central nervous system. (lecturio.com)
  • Its major components include the auditory ossicles and the eustachian tube that connects the cavity of middle ear (tympanic cavity) to the upper part of the throat. (lecturio.com)
  • Six boundaries are usually described : The roof is formed by a thin plate of bone, the tegmen tympani, situated upon the anterior surface of the petrous bone near the angle of union with the squamous portion. (nih.gov)
  • The middle ear is an irregular chamber, situated in the petrous portion of the temporal bone, at the bottom of the ex- ternal auditory meatus. (nih.gov)
  • The ear, the organ of hearing, is subject to three general divisions: the external ear, the middle ear or tympanum, and the labyrinth or internal ear. (nih.gov)
  • The Middle Ear or Tympanum. (nih.gov)
  • It extends between the internal acoustic meatus and stylomastoid foramen . (cloudfront.net)
  • The osseous portion is free from hairs and glands, but the portion exterior to this is supplied by fine hairs and glands (glandulaa ceruminosae) which secrete the ear-wax. (nih.gov)