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Hypersalivation can contribute to drooling if there is an inability to keep the mouth closed or difficulty in swallowing (dysphagia) the excess saliva, which can lead to excessive spitting. Hypersalivation also often precedes emesis (vomiting), where it accompanies nausea (a feeling of needing to vomit).
Saliva on a baby's lips. Saliva (commonly referred to as spit or drool) is an extracellular fluid produced and secreted by salivary glands in the mouth.In humans, saliva is around 99% water, plus electrolytes, mucus, white blood cells, epithelial cells (from which DNA can be extracted), enzymes (such as lipase and amylase), and antimicrobial agents (such as secretory IgA, and lysozymes).
Cholinergic crisis, sometimes known by the mnemonic "SLUDGE syndrome" (salivation, lacrimation, urination, defecation, gastrointestinal distress, and emesis), [4] can be a consequence of: Contamination with - or excessive exposure to - certain chemicals including: nerve agents, (e.g., sarin, VX, Novichok agents).
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Drooling, or slobbering, is the flow of saliva outside the mouth. Drooling can be caused by excess production of saliva , inability to retain saliva within the mouth (incontinence of saliva), or problems with swallowing ( dysphagia or odynophagia ).
Frey's syndrome (also known as Baillarger's syndrome, Dupuy's syndrome, auriculotemporal syndrome, [1] or Frey-Baillarger syndrome) is a rare neurological disorder resulting from damage to or near the parotid glands responsible for making saliva, and from damage to the auriculotemporal nerve often from surgery.
In humans, 1200 to 1500 ml of saliva are produced every day. [3] The secretion of saliva (salivation) is mediated by parasympathetic stimulation; acetylcholine is the active neurotransmitter and binds to muscarinic receptors in the glands, leading to increased salivation. [3] [4]
Hypersomnia is a neurological disorder of excessive time spent sleeping or excessive sleepiness.It can have many possible causes (such as seasonal affective disorder) and can cause distress and problems with functioning. [1]