acoustic meatus
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Related to acoustic meatus: auditory meatus
meatus
[me-a´tus] (pl. mea´tus) (L.)an opening or passage, especially one leading to the body surface. adj., adj mea´tal.
acoustic meatus (meatus acus´ticus) either of two passages in the ear; the external acoustic meatus leads from the auricle to the tympanic membrane (eardrum) and the internal acoustic meatus is for passage of nerves and blood vessels.
auditory meatus acoustic meatus.
meatus na´si (meatus of nose) one of the three portions of the nasal cavity on either side of the septum: inferior (meatus nasi inferior), middle (meatus nasi medius), and superior (meatus nasi superior).
ureteral meatus ureteral orifice.
meatus urina´rius (urinary meatus) the opening of the urethra on the body surface, through which urine is discharged.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
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
Farlex Partner Medical Dictionary © Farlex 2012
acoustic meatus
n.
1. The external portion of the auditory canal; external auditory canal.
2. The internal portion of the auditory canal; internal auditory canal.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
acoustic meatus
(1) External acoustic meatus, meatus acusticus externus; external auditory canal.(2) Internal acoustic meatus, meatus acusticus internus; internal auditory canal.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
a·cou·stic me·a·tus
(ă-kūs'tik mē-ā'tŭs)1. External: auditory canal; the passage leading inward through the tympanic portion of the temporal bone, from the auricle to the membrana tympani;
2. Internal: a canal running through the petrous portion of the temporal bone, giving passage to the facial and vestibulocochlear nerves and to the labyrinthine artery and veins.
Synonym(s): meatus acusticus.
Synonym(s): meatus acusticus.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
ex·ter·nal a·cous·tic me·a·tus
(eks-tĕr'năl ă-kūs'tik mē-ā'tŭs) [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): acoustic meatus (1) , antrum auris.
Synonym(s): acoustic meatus (1) , antrum auris.
ex·ter·nal au·di·to·ry ca·nal
(eks-tĕrnăl awdi-tōr-ē kă-nal)The passage leading inward through the tympanic portion of the temporal bone, from the auricle to the tympanic membrane; it consists of fibrocartilaginous outer and bony inner portions lined with thin skin medially and thicker skin with ceruminous glands, hair follicles, and subcutaneous fat laterally.
Synonym(s): acoustic meatus (2) .
Synonym(s): acoustic meatus (2) .
Medical Dictionary for the Dental Professions © Farlex 2012