bone conduction


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conduction

 [kon-duk´shun]
conveyance of energy, as of heat, sound, or electricity.
aberrant ventricular conduction the temporary abnormal intraventricular conduction of supraventricular impulses; called also ventricular aberration.
aerial conduction (air conduction) conduction of sound waves to the organ of hearing in the inner ear through the air.
anterograde conduction
1. forward conduction of impulses through a nerve.
2. in the heart, conduction of impulses from atria to ventricles.
atrioventricular conduction (AV conduction) the conduction of atrial impulses through the atrioventricular node and the His-Purkinje system to the ventricles.
bone conduction conduction of sound waves to the inner ear through the bones of the skull.
concealed conduction conduction that is not seen on the surface electrocardiogram but may be detected by its effect on subsequent impulses; common examples are the incomplete penetration of the AV junction during atrial fibrillation, the Wenckebach type penetration during atrial flutter, and the retrograde incomplete penetration following ventricular ectopic beats.
decremental conduction a gradual decrease in the stimuli and response along a pathway of conduction; it occurs in nerve fibers with reduced membrane potentials.
retrograde conduction transmission of a cardiac impulse backward in the ventricular to atrial direction; particularly, conduction from the atrioventricular node into the atria.
saltatory conduction the rapid passage of an electric potential between the nodes of ranvier in myelinated nerve fibers, rather than along the full length of the membrane.

bone con·duc·tion

in relation to hearing, the transmission of sound to the inner ear through vibrations applied to the bones of the skull.
Synonym(s): osteophony

bone conduction

n.
The process by which sound waves are transmitted to the inner ear by the cranial bones without traveling through the air in the ear canal.

bone con·duc·tion

(bōn kŏn-dŭk'shŭn)
audiology The transmission of sound to the inner ear through vibrations applied to the bones of the skull.

bone conduction

The transmission of sound to the inner ear hearing mechanisms by way of bone rather than by the normal air, eardrum and middle ear route.

bone con·duc·tion

(bōn kŏn-dŭk'shŭn)
audiology the transmission of sound to the inner ear through vibrations applied to the bones of the skull.

conduction, conductive

conveyance of energy, as of heat, sound or electricity.

accessory tract atrioventricular conduction
permits a sinus impulse from the atria to ventricles to precede that carried by the normal atrioventricular conduction system. Arrhythmia results, the particular electrocardiographic characteristics depending on the pathway(s) involved. See also wolff-parkinson-white syndrome.
aerial conduction, air conduction
conduction of sound waves to the organ of hearing through the air.
conduction anesthesia
local anesthesia produced by the injection of an anesthetic agent close to a nerve in order to prevent transmission of nerve impulses along it.
bone conduction
conduction of sound waves to the inner ear through the bones of the skull.
conduction disorder
abnormalities in the conduction pathways of the heart.
James accessory conduction
conduction system
the system comprises the sinoatrial and atrioventricular nodes, atrioventricular bundle and Purkinje fibers.
Enlarge picture
Conduction system of the heart. By permission from Cunningham JG, Textbook of Veterinary Physiology, Saunders, 2002
conduction time
an indicator of a peripheral nerve's ability to carry an impulse; measured during electromyography. A nerve that has undergone Wallerian degeneration is unable to carry an impulse. Severe loss of myelin results in a prolonged conduction time.
References in periodicals archive ?
Conductive hearing loss and bone conduction devices: Restored binaural hearing?
New Wireless Bone Conduction Headphones Eliminate Compromises with Multipoint Pairing and PremiumPitch+(TM) Sound, Pre-Order Trekz For a Limited Time on Indiegogo For $99
With knowledge in sound transmission and the patented technology INVISIO Bone Conduction the company develops, markets, and sells advanced headsets, control units and peripherals for usage with two-way radio.
There is also a bone conduction transducer which transmits audio directly to the small bones located at the person's ears so there is no need for earphones.
Today MED-EL offers the widest range of implantable solutions worldwide to treat various degrees of hearing loss: cochlear and middle ear implant systems, EAS (combined Electric Acoustic Stimulation) hearing implant system and auditory brainstem implants as well as the world's first active bone conduction implant.
London, Apr 27 ( ANI ): In a first of its kind operation, a piece of rib and a bone conduction implant have been used to treat an Edinburgh man's hereditary deafness.
Summary: Mafraq Hospital, owned and operated by Abu Dhabi Health Services Company (SEHA), has announced the success of ear, nose and throat (ENT) specialists in achieving a bone conduction implant - the Bonebridge.
Audiometry revealed a right-sided conductive hearing loss with normal bone conduction thresholds.
Currently, Cochlear has four distinct product lines: cochlear implants, bone conduction implants, implants for electro-acoustic stimulation and implants for direct acoustic stimulation.
com), the award-winning headphone brand known for its patented bone conduction technology, announces its new sport headphone, Trekz Titanium(TM).
Contract notice: 5 sound processor for hearing aid bone conduction compatible with hook cochlear st.
Such patient listens through bone conduction of skull but the quality of voice heard might not be clear because there is absence of air conduction," Dr Neeraj Kasliwal, prominent ENT surgeon and head of department at Fortis Hospital in Jaipur, told IBN Live.