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The gag reflex involves a brisk and brief elevation of the soft palate and bilateral contraction of pharyngeal muscles evoked by touching the posterior pharyngeal wall. Touching the soft palate can lead to a similar reflex response. However, in that case, the sensory limb of the reflex is the CN V (trigeminal nerve). In very sensitive ...
Oropharyngeal airways are indicated only in unconscious people, because of the likelihood that the device would stimulate a gag reflex in conscious or semi-conscious persons. This could result in vomiting and potentially lead to an obstructed airway. Nasopharyngeal airways are mostly used instead as they do not stimulate a gag reflex.
They are the artificial airways of choice in patients who are conscious and have intact gag reflexes because they are less likely to stimulate the gag reflex than oropharyngeal airways (OPAs). [4] [2] NPAs can also be used in other sitations where OPAs cannot, such as in patients with restricted mouth opening or oral trauma. [2]
These nerves, and the part of the brain they send signals to, make up a pathway called a reflex arc, per the Cleveland Clinic. The stimulation of these nerves causes the diaphragm to contract and ...
Bruxism is excessive teeth grinding or jaw clenching. It is an oral parafunctional activity; [1] i.e., it is unrelated to normal function such as eating or talking. Bruxism is a common behavior; the global prevalence of bruxism (both sleep and awake) is 22.22%. [2]
An NPA is often used in patients who are conscious or have an altered level of consciousness [6] where an oropharyngeal airway would trigger the gag reflex. [7] [8] The use of an NPA is contraindicated when there is trauma to the face, especially the nose or if there is a suspected skull fracture. [9]
Gag reflex: The gag, or pharyngeal, reflex is centered in the medulla and consists of the reflexive motor response of pharyngeal elevation and constriction with tongue retraction in response to sensory stimulation of the pharyngeal wall, posterior tongue, tonsils, or faucial pillars.
A gag is usually an item or device designed to prevent speech, often as a restraint device to stop the subject from calling for help and keep its wearer silent. This is usually done by blocking the mouth , partially or completely, or attempting to prevent the tongue , lips , or jaw from moving in the normal patterns of speech.
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