why when you vomit right before you get really hot and start sweating then when you do you turn ice cold? then also why right before you vomit you get alot of saliva in your mouth.? i no these are weird questions but i was sick yesterday and noticed these things and was just wondering.
2006-11-11 01:56:55 · 3 answers · asked by anioheveteric 2 in Health ➔ Other - Health
The vomiting act encompasses three types of outputs initiated by the medulla: Motor, parasympathetic nervous system (PNS) and sympathetic nervous system (SNS). Collectively, they are as follows:
* Increased salivation to protect the enamel of teeth from stomach acids (excessive vomiting does lead to caries). This is part of the PNS output.
* Retroperistalsis, starting from the middle of the small intestine, sweeping up the contents of the digestive tract into the stomach, through the relaxed pyloric sphincter.
* A lowering of intrathoracic pressure (by inspiration against a closed glottis), coupled with an increase in abdominal pressure as the abdominal muscles contract, propels stomach contents into the esophagus without involvement of retroperistalsis. The lower esophageal sphincter relaxes. This is part of the motor output, and it is also important to note that the stomach itself does not contract in the process of vomiting.
* Vomiting is ordinarily preceded by retching.
* Vomiting also initiates a SNS response causing both sweating and increased heart rate.
2006-11-11 02:03:21 · answer #1 · answered by tampico 6 · 1⤊ 0⤋
I think it is due to your body protecting your esophagus from stomach acid. The chills I am not sure of? Maybe so your body doesn't over heat?
People vomit before a seizure too, or my child and I do.....
Sorry you were sick, hope you feel better!!
2006-11-11 02:02:49 · answer #2 · answered by Anonymous · 0⤊ 0⤋
phisiological changes
2006-11-11 02:02:01 · answer #3 · answered by ayby p 1 · 0⤊ 0⤋