For faster navigation, this Iframe is preloading the Wikiwand page for Bronchoconstriction.

Bronchoconstriction

Illustration 3D d'une bronchoconstriction par contraction des muscles lisses ("smooth muscle") des bronches

La bronchoconstriction est le rétrécissement du calibre des bronches à cause d'une contraction des muscles bronchiques.

La bronchoconstriction est due à la fixation de l'acétylcholine[réf. nécessaire] sur les récepteurs induisant une contraction des muscles lisses des bronches au niveau des poumons. Elle crée une obstruction des bronches qui peut entrainer une difficulté respiratoire. Elle est l'une des manifestations importante de l'asthme mais s'observe aussi, entre autres dans la BPCO.

Elle peut aussi être causée par une concentration trop forte en facteur d'activation plaquettaire (PAF).

Les principaux signes de bronchoconstriction sont les sibilances à l'auscultation. On peut en objectiver l'importance par la spirométrie.

{{bottomLinkPreText}} {{bottomLinkText}}
Bronchoconstriction
Listen to this article

This browser is not supported by Wikiwand :(
Wikiwand requires a browser with modern capabilities in order to provide you with the best reading experience.
Please download and use one of the following browsers:

This article was just edited, click to reload
This article has been deleted on Wikipedia (Why?)

Back to homepage

Please click Add in the dialog above
Please click Allow in the top-left corner,
then click Install Now in the dialog
Please click Open in the download dialog,
then click Install
Please click the "Downloads" icon in the Safari toolbar, open the first download in the list,
then click Install
{{::$root.activation.text}}

Install Wikiwand

Install on Chrome Install on Firefox
Don't forget to rate us

Tell your friends about Wikiwand!

Gmail Facebook Twitter Link

Enjoying Wikiwand?

Tell your friends and spread the love:
Share on Gmail Share on Facebook Share on Twitter Share on Buffer

Our magic isn't perfect

You can help our automatic cover photo selection by reporting an unsuitable photo.

This photo is visually disturbing This photo is not a good choice

Thank you for helping!


Your input will affect cover photo selection, along with input from other users.

X

Get ready for Wikiwand 2.0 🎉! the new version arrives on September 1st! Don't want to wait?