tympanic


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

tympanic

 [tim-pan´ik]
1. bell-like; resonant. Called also tympanal and tympanitic.
2. of or pertaining to the tympanum.
tympanic membrane a thin, semitransparent membrane, nearly oval in shape, that stretches across the ear canal and separates the tympanum (middle ear) from the external acoustic meatus (outer ear); called also eardrum. It is composed of fibrous tissue, covered with skin on the outside and mucous membrane on the inside. It is constructed so that it can vibrate freely with audible sound waves that travel inward from outside. The handle of the malleus of the middle ear is attached to the center of the membrane and receives the vibrations it collects, transmitting them to the other ossicles of the middle ear (the incus and stapes), which in turn transmit the vibrations to the fluid of the inner ear.



Perforation of the tympanic membrane can cause loss of hearing, the extent depending on the size and location of the perforation. Since vibrations can still be transmitted to the inner ear by way of the bones of the skull, even nearly total destruction of the tympanic membrane does not produce total deafness. Surgical incision of the membrane (myringotomy) or insertion of ventilating tubes may be done to relieve pressure and provide for drainage in an infection of the middle ear. See also otitis media.
Tympanic membrane. From Jarvis, 1996.

tym·pan·ic

(tim-pan'ik),
1. Relating to the tympanic cavity or membrane. Synonym(s): tympanal (1)
2. Resonant.
3. Synonym(s): tympanitic (2)

tympanic

/tym·pan·ic/ (tim-pan´ik)
1. tympanal; of or pertaining to the tympanum.
2. bell-like; resonant.

tympanic

(tĭm-păn′ĭk)
adj.
1. Relating to or resembling a drum.
2. also tympanal (tĭm′pə-nəl) Anatomy Of or relating to the middle ear or eardrum.

tympanic

[timpan′ik]
Etymology: Gk, tympanon, drum
pertaining to a structure that resonates when struck; drumlike, such as a tympanic abdomen that resonates on percussion because the intestines are distended with gas. Also called tympanal. tympanum /tim′pənəm, pl, tympana, n.

tym·pan·ic

(tim-pan'ik)
1. Relating to the tympanic cavity or membrane.
Synonym(s): tympanal (1) .
2. Resonant.
3. Synonym(s): tympanitic (2) .

tym·pan·ic

(tim-pan'ik)
1. Relating to the tympanic cavity or membrane.
2. Resonant.

tympanic

1. of or pertaining to the tympanum.
2. bell-like; resonant.

tympanic cavity
middle ear.
tympanic membrane
a thin, semitransparent membrane, nearly oval in shape, that stretches across the ear canal separating the middle ear from the external acoustic meatus (outer ear); called also the eardrum. It is composed of fibrous tissue, covered with skin on the outside and mucous membrane on the inside. It is constructed so that it can vibrate freely with audible sound waves that travel inward from outside. The manubrium (handle) of the malleus (hammer) of the middle ear is attached to the center of the tympanic membrane and receives the vibrations collected by the membrane, transmitting them to other bones of the middle ear (the incus and stapes) and eventually to the fluid of the inner ear.
Enlarge picture
Normal canine left tympanic membrane. By permission from Gotthelf LN, Small Animal Ear Disease, Saunders, 2005
tympanic membrane (secondary)
the membrane enclosing the fenestra cochlearis; called also Scarpa's membrane.
tympanic nerve
see Table 14.
tympanic plexus
see tympanic plexus.
tympanic ossicles
see auditory ossicles.
References in periodicals archive ?
The Tympanic Membrane (TM) plays a significant role in the physiology of hearing.
Cartilage has come into favor as a graft material for tympanic membrane repair because it is resistant to infection and retraction, which allows it to maintain its viability for a long time.
44 cases were selected for the study over a period of 2 years; 41 cases had unilateral tympanic membrane perforation and 3 cases had bilateral tympanic membrane perforations.
Carefully blunt incision was then given to separate ear canal attachment with tympanic cavity.
Type-1 tympanoplasty is simple repair of the tympanic membrane without reconstruction of the middle ear ossicles.
The accurate model of the tympanic membrane, which simulates the acoustic-mechanical transmission, could improve the clinical surgical intervention [7].
Tympanic membrane perforation: size, site and hearing evaluation.
It was great to go grand and big," remarks Tympanic marketing director and literary manager Chris Acevedo, who adds that Right Brain Project's intimate setting provided a perfect home for the ambitious festival.
I'm talking about a child who has been diagnosed with otitis on one day and on the next day I must remove a significant collection of cerumen to visualize what is often a normal tympanic membrane.
Patients with tympanic membrane perforation and pure conductive hearing loss were included in middle ear damage, whereas patients with mixed, pure sensory neural hearing loss and vertigo fell under inner ear damage.
Results: Tympanic thermometer body temperature results were significantly higher (p less than 0.