The Full Wiki

More info on Chemoreceptor trigger zone

Chemoreceptor trigger zone: Wikis


Note: Many of our articles have direct quotes from sources you can cite, within the Wikipedia article! This article doesn't yet, but we're working on it! See more info or our list of citable articles.


From Wikipedia, the free encyclopedia

The chemoreceptor trigger zone (CTZ) is an area of the medulla that receives inputs from blood-borne drugs or hormones, and communicates with the vomiting center, to initiate vomiting. The CTZ is close to the area postrema on the floor of the fourth ventricle and is outside of the blood-brain barrier. The neurotransmitters implicated in the control of nausea and vomiting include acetylcholine, dopamine, histamine (H-1 receptor), substance P (NK-1 receptor), and 5-HT (5-HT3 receptor). There are also opioid receptors present, which may be the mechanism by which opiates cause nausea and vomiting.

See also


Got something to say? Make a comment.
Your name
Your email address