resonance

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resonance

 [rez´o-nans]
1. the prolongation and intensification of sound produced by transmission of its vibrations to a cavity, especially such a sound elicited by percussion. Decrease of resonance is called dullness; its increase, flatness.
2. a vocal sound heard on auscultation.
amphoric resonance a sound resembling that produced by blowing over the mouth of an empty bottle.
nuclear magnetic resonance see nuclear magnetic resonance.
skodaic resonance increased percussion resonance at the upper part of the chest, with flatness below it; heard over a large pleural effusion or area of consolidation.
tympanic resonance tympanitic resonance (def. 2).
tympanitic resonance
1. the peculiar sound elicited by percussing a tympanitic abdomen.
2. the drumlike reverberation of a cavity full of air; called also tympanic resonance.
vocal resonance (VR) the sound of ordinary speech as heard through the chest wall.

res·o·nance

(rez'ō-nănts),
1. In chemistry, the manner in which electrons or electric charges are distributed among the atoms in compounds that are planar and symmetric, particularly those with conjugated (alternating) double bonds; the existence of resonance in the latter case reduces the energy content and increases the stability of compounds; such molecular entities have more than one contriubuting structure, each differing only in the distribution of electrons.
2. Sympathetic or forced vibration of air in the cavities above, below, in front of, or behind a source of sound; in speech, modification of the quality (for example, harmonics) of a tone by the passage of air through the chambers of the nose, pharynx, and head, without increasing the intensity of the sound.
3. The sound obtained on percussion of a part that can vibrate freely.
4. The intensification and hollow character of the voice sound obtained on auscultation over a cavity.
5. The natural or inherent frequency of any oscillating system.
6. Synonym(s): resonant frequency
[L. resonantia, echo, fr. re-sono, to resound, to echo]

resonance

/res·o·nance/ (rez´o-nins)
1. the prolongation and intensification of sound produced by transmission of its vibrations to a cavity, especially such a sound elicited by percussion.
2. a vocal sound heard on auscultation.
3. the existence of organic chemical structures that can not be accurately represented by a single structural formula, the actual formula lying intermediate between several possible representations differing only in electron position.

amphoric resonance  an auscultatory sound like that produced by blowing over the mouth of an empty bottle.
nuclear magnetic resonance  a measure, by means of applying an external magnetic field to a solution in a constant radiofrequency field, of the magnetic moment of atomic nuclei to determine the structure of organic compounds; the technique is used in magnetic resonance imaging.
skodaic resonance  increased percussion resonance at the upper part of the chest, with flatness below it.
tympanitic resonance 
1. the percussion sound heard on an abdomen with tympanites.
2. the drumlike reverberation of a cavity full of air.
vocal resonance  (VR) the sound of ordinary speech as heard through the chest wall.

resonance

(rĕz′ə-nəns)
n.
1.
a. Intensification and prolongation of sound, especially of a musical tone, produced by sympathetic vibration.
b. Intensification of vocal tones during articulation, as by the air cavities of the mouth and nasal passages.
c. Medicine The sound produced by diagnostic percussion of the normal chest.
2. Physics The increase in amplitude of oscillation of an electric or mechanical system exposed to a periodic force whose frequency is equal or very close to the natural undamped frequency of the system.

resonance

Etymology: L, vocalis + resonare, to sound again
1 an echo or other sound produced by percussion of an organ or cavity of the body during a physical exam.
2 the process of energy absorption by an object that is tuned to absorb energy of a specific frequency. Other frequencies have no effect.
3 modification of the laryngeal tone as it passes through the pharynx and oral cavity to produce an increase in the intensity and quality of the sound.

resonance

An MRI term for a large-amplitude vibration in a mechanical or electrical system caused by a relatively small periodic stimulus with a frequency at or close to the system’s natural frequency. Resonance is also defined as the exchange of energy at a particular frequency between two systems.

res·o·nance

(rez'ŏ-năns)
1. Sympathetic or forced vibration of air in the cavities above, below, in front of, or behind a source of sound; in speech, modification of the quality (e.g., tone) of a sound by the passage of air through the chambers of the nose, pharynx, and head, without increasing the intensity of the sound.
2. The sound obtained on percussion of a part that can vibrate freely.
3. The intensification and hollow character of the voice sound obtained on auscultation over a cavity.
4. chemistry The manner in which electrons or electric charges are distributed among the atoms in compounds that are planar and symmetric, particularly those with conjugated (alternating) double bonds; the existence of resonance in the latter case reduces the energy content and increases the stability of a compound.
5. The natural or inherent frequency of any oscillating system.
6. Synonym(s): resonant frequency.
[L. resonantia, echo, fr. re-sono, to resound, to echo]

res·o·nance

(rez'ŏ-năns)
1. In chemistry, the manner in which electrons or electric charges are distributed among the atoms in compounds.
2. Sympathetic or forced vibration of air in cavities above, below, in front of, or behind a source of sound.
3. Sound obtained on percussion of a body part.
4. Intensification and hollow character of voice sound obtained on auscultation over a cavity.
[L. resonantia, echo, fr. re-sono, to resound, to echo]

resonance (rez´ənəns),

n the vibratory response of a body or air-filled cavity to a frequency imposed on it.
resonance, speech,
n the resonance of the body cavities and surfaces involved in the production of speech. The sound waves produced at the vocal folds are still far from the finished product heard in speech. The resonators give the characteristic quality to the voice. The resonating structures are the air sinuses; organ surfaces; cavities such as the pharynx, oral cavity, and nasal cavity; and chest wall. The resonating structures contribute no energy to the stream of air; they act to conserve and concentrate the energy already present in the laryngeal tone rather than to let it dissipate into the tissues. However, the resonated laryngeal tone still is not speech.

resonance

1. the prolongation and intensification of sound produced by transmission of its vibrations to a cavity, especially such a sound elicited by percussion. Decrease of resonance is called dullness; its increase, flatness.
2. a vocal sound heard on auscultation.

amphoric resonance
a sound resembling that produced by blowing over the mouth of an empty bottle.
skodaic resonance
increased percussion resonance at the upper part of the chest, with flatness below it.
tympanic resonance
drumlike reverberation of a cavity filled with air.
tympanitic resonance
the peculiar sound elicited by percussing a tympanitic abdomen.
vesicular resonance
normal pulmonary resonance.
vocal resonance
the sound of ordinary speech as heard through the chest wall.

Patient discussion about resonance

Q. who much cost the resonance magnetic machine? new or used

A. here is a company that you can even get a MRI scanner in a leasing program:
http://www.nationwideimaging.com/index.php

More discussions about resonance