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The concerns of bad breath may be divided into genuine and non-genuine cases. [2] Of those who have genuine bad breath, about 85% of cases come from inside the mouth. [1] The remaining cases are believed to be due to disorders in the nose, sinuses, throat, lungs, esophagus, or stomach. [3]
Also called rhinorrhea, is a very common medical disorder that occurs when the nasal tissues are congested and the excess fluid runs either at the back of the throat or out of the nose. Post-nasal drip can be caused by the common cold, allergies to dust, smoking, or pet dander. Even spicy foods can sometimes cause post-nasal drip.
Sensory receptors in the mouth and nose are polarized at resting state, and they depolarize in response to some change in environment, such as coming in contact with odor molecules. Odor molecules, consisting of hydrocarbon chains with functional groups, bind to sensory receptors in the nose and mouth. Properties of functional groups include ...
Other symptoms include a metallic taste, throat closing or tightening, coughing fits, itchy throat, and choking. Larger tonsil stones may cause recurrent bad breath, which frequently accompanies a tonsil infection, sore throat , white debris, a bad taste in the back of the throat, difficulty swallowing, ear ache , and tonsil swelling. [ 12 ]
The ethmoidal sinuses are further subdivided into anterior and posterior ethmoid sinuses, the division of which is defined as the basal lamella of the middle nasal concha. In addition to the severity of disease , discussed below, sinusitis can be classified by the sinus cavity it affects:
The sneezing, coughing and runny nose are enough to drive anyone crazy. But having a blocked nose, whether it's from an illness or just plain ol' seasonal allergies is perhaps the worst symptom of ...
A basilar skull fracture as a cause can give the sign of CSF leakage from the ear, nose or mouth. [4] A lumbar puncture can give the symptom of a post-dural-puncture headache. A cerebrospinal fluid leak can be either cranial or spinal, and these are two different disorders. [5]
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