Vomiting
vomiting is the active rejection by the mouth of the gastric contents. It is distinguished from regurgitation who is, it, passive.
vomiting is primarily of central origin: in cerebral trunk there is the center of the receiving vomiting of information of cortex, of the pressure of ventricles cerebral, of internal organs and of a zone of chimiorécepteurs. It sends efférences towards the digestive tract, more particularly towards .
Synopsis |
Mechanism
Movements retroperistaltic of the duodenum, follow-ups of a contraction of pylore with gastric lifelessness, then of a relaxation of cardia with simultaneous contraction of and of the abdominal muscles what causes the increase of food. A phenomenon reflex at the conscious subject allows the closing of higher air routes.
It is a very frequent symptom being the subject of triple concern:
- Nature, abundance, frequency
- Causes which are multiple
- The complications should be avoided
Contents
Causes
- Syndromes vertiginous, migraines,
- vagaux syndromes either isolated and benign (for example within the framework of an evil of transport), or consecutive with another pathology (for example at the time of one ),
- meningitides, tumour cerebral, other neurological pathologies
- diseases of digestive tract : ulcerate , food poisoning, ...
- disorders : ,...
- diseases (of which anorexia nervosa)
- Side effects of some
- stimulation of certain parts of gorges
- ...
Digestive tract
Sensory system and brain
Complications
- Disorders hydroelectrolytic
- mechanical complications: ulceration, syndrome of Mallory-Weiss,...
- respiratory complications (pneumopathy of inhalation, being able to go to a respiratory table of distress: syndrome of Mendelson)
Others
Drugs related to the vomiting
Emetics
Antiemetics
social implications
Context
In the language
In the other animals
Terminology
- One regurgitation is a simple increase of the gastric contents towards the back of the throat.
- The effort of vomiting is called one nausea.
- One making vomit is called one emetic. One speaks in the same way about effect émétisant.
- A drug fighting against the vomiting is called one antiemetic.
See too
- Émétophobie (fear of vomitting)
External bonds
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