1. Amphid In Nematoda, an anterior sense organ that is believed to be a chemoreceptor

2. Phenothiazine Antiemetics are a type of medicine that may be used to relieve nausea and vomiting.They work by inhibiting dopamine, muscarinic and histamine (H1) receptors generally in the vomiting center and chemoreceptor trigger zone.

3. Phenothiazine Antiemetics are a type of medicine that may be used to relieve nausea and vomiting. They work by inhibiting dopamine, muscarinic and histamine (H1) receptors generally in the vomiting center and chemoreceptor trigger zone.

4. Mechanism of Action: The Antiemetic properties of metoclopramide appear to be a result of its antagonism of central and peripheral dopamine receptors.Dopamine produces nausea and vomiting by stimulation of the medullary chemoreceptor trigger zone (CTZ), and metoclopramide blocks stimulation of the CTZ by agents like l-dopa or apomorphine which are known to increase dopamine levels or to