meatus acusticus externus
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Related to meatus acusticus externus: External Auditory Meatus, External acoustic meatus
ex·ter·nal a·cous·tic me·a·tus
[TA]the passage leading inward through the tympanic portion of the temporal bone, from the auricle to the tympanic membrane; it consists of a bony (inner) portion and a fibrocartilaginous (outer) portion, the cartilaginous external acoustic meatus.
Synonym(s): meatus acusticus externus [TA], acoustic meatus (1) , antrum auris, auditory canal, ear canal, external auditory meatus
meatus
(me-a'tus) plural.meatus [L.]A passageway or an opening. meatal (me-a'tal), adjective
acoustic meatus
The opening to either the external or internal auditory canal. It can also be a synonym for either the external or internal auditory canal.
meatus acusticus externus
External auditory canal.meatus acusticus internus
Internal auditory canal.external acoustic meatus
External auditory meatus.external auditory meatus
The outer opening of the external auditory canal, or the canal itself.
See: external acoustic meatus.internal acoustic meatus
Internal auditory meatus.internal auditory meatus
The opening of the internal auditory canal into the cranial cavity located on the posterior surface of the petrous portion of the temporal bone, or the canal itself.
Synonym: internal acoustic meatusmeatus nasi communis
Common nasal cavity on either side of septum, into which three meatus open.
meatus nasi inferior
Space beneath inferior turbinate or concha of the nose.
meatus nasi medius
Space beneath middle turbinate or concha of the nose.
meatus nasi superior
Space beneath superior turbinate or concha of the nose.
meatus nasopharyngeus
Posterior portion of nasal cavity, which communicates with the nasopharynx.
urethral meatus
External opening of the urethra.
Synonym: urinary meatus; meatus urinarius