Pulmonary resonance

Pulmonary resonance
Resonance Res"o*nance (r?z"?-nans), n. [Cf. F. r['e]sonance, L. resonantia an echo.] 1. The act of resounding; the quality or state of being resonant. [1913 Webster]

2. (Acoustics) A prolongation or increase of any sound, either by reflection, as in a cavern or apartment the walls of which are not distant enough to return a distinct echo, or by the production of vibrations in other bodies, as a sounding-board, or the bodies of musical instruments. [1913 Webster]

3. (Physics) A phenomenon in which a vibration or other cyclic process (such as tide cycles) of large amplitude is produced by smaller impulses, when the frequency of the external impulses is close to that of the natural cycling frequency of the process in that system.

Note: The shattering of a glass object when impinged upon by sound of a certain frequency is one example of this phenomenon; another is the very large tides in certain basins such as that of the Bay of Fundy, which has a natural cycling frequency close to that of the tidal cycle. [PJC]

4. (Electronics) An electric phenomenon corresponding to that of acoustic resonance, due to the existance of certain relations of the capacity, inductance, resistance, and frequency of an alternating circuit; the tuning of a radio transmitter or receiver to send or detect waves of specific frequencies depends on this phenomenon. [Webster 1913 Suppl. +PJC]

{Pulmonary resonance} (Med.), the sound heard on percussing over the lungs.

{Vocal resonance} (Med.), the sound transmitted to the ear when auscultation is made while the patient is speaking. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Resonance — Res o*nance (r?z ? nans), n. [Cf. F. r[ e]sonance, L. resonantia an echo.] 1. The act of resounding; the quality or state of being resonant. [1913 Webster] 2. (Acoustics) A prolongation or increase of any sound, either by reflection, as in a… …   The Collaborative International Dictionary of English

  • Pulmonary consolidation — Classification and external resources Pneumonia as seen on chest x ray. A: Normal chest x ray. B: Abnormal chest x ray with consolidation from pneumonia in the right lung, middle or inferior lobe (white area, left side of image) …   Wikipedia

  • Pulmonary embolism — Classification and external resources Chest spiral CT scan with radiocontrast agent showing multiple filling defects both at the bifurcation and in the pulmonary arteries. ICD 10 …   Wikipedia

  • resonance — 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., harmonics) of a tone by the passage of air through the chambers of the nose, pharynx …   Medical dictionary

  • Vocal resonance — Resonance Res o*nance (r?z ? nans), n. [Cf. F. r[ e]sonance, L. resonantia an echo.] 1. The act of resounding; the quality or state of being resonant. [1913 Webster] 2. (Acoustics) A prolongation or increase of any sound, either by reflection, as …   The Collaborative International Dictionary of English

  • Imagerie par résonance magnétique — Pour les articles homonymes, voir IRM et MRI. L imagerie par résonance magnétique (IRM) est une technique d imagerie médicale permettant d obtenir des vues 2D ou 3D de l intérieur du corps de façon non invasive avec une résolution relativement… …   Wikipédia en Français

  • Solitary pulmonary nodule — Classification and external resources Chest X ray showing a solitary pulmonary nodule (indicated by a black box) in the left upper lobe …   Wikipedia

  • Magnetic resonance imaging — MRI redirects here. For other meanings of MRI or Mri, see MRI (disambiguation). Magnetic resonance imaging Intervention Sagittal MR image of the knee ICD 10 PCS B?3?ZZZ …   Wikipedia

  • Magnetic resonance neurography — Bilateral Split Sciatic Nerve Magnetic resonance neurography (MRN) is the direct imaging of nerves in the body by optimizing selectivity for unique MRI water properties of nerves. It is a modification of magnetic resonance imaging. This technique …   Wikipedia

  • Magnetic resonance angiography — Intervention Time of flight MRA showing the circle of Willis in the brain. Note the venetian blinds artifact visible as the multiple pseudo stenosis on both the left and right middle cerebral artery …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”