Aphthous stomatitis caused by a reduction in numbers of CD4+ T cells may be implicated in RAS-type ulceration in HIV infection. The thickness of the mucosa may be an important factor in aphthous stomatitis. Usually, ulcers form on the thinner, non-keratinizing mucosal surfaces in the mouth. Factors which decrease the thickness of the mucosa increase the frequency of occurrence, and factors which increase the thickness of the mucosa correlate with decreased ulceration. The nutritional deficiencies associated with aphthous stomatitis (Vitamin B12, folate, and iron) can all cause a decrease in the thickness of the oral mucosa (atrophy). Local trauma is also associated
Body part as an object Body part as an object Body part as an object (BPO) mime gestures occurs when a mime artist or other individual substitutes a part of their body - usually arms, fingers, or hands - to be part of an object they are miming. Miming uses representational gestures, meaning they are used to convey a message to others without the use of speech. A commonly used example of BPO miming is demonstrated by an individual using their finger to represent a toothbrush while acting out brushing their teeth. In studying gestures from a psychological, psycholinguistic, and/or neuropsychological context, pantomimes can be