The episodes of numbness in the chin and lower lip and the sensations of prickling (pins and needles) at the right corner of her mouth are due to the alterations in the functions of somatic nervous system. Hypoesthesia is a state of loss or decreasing the capacity of sensation in general and skin in particular. The hypoesthesia is characterized by an insufficient response against the stimulus. Paresthesia is state where the individual felt a sensation of numbness or creeping. It usually occurs in the extremities of limbs and other parts of the body such as mandible or upper jaw. In paresthesia, the individual show an appropriate response against the stimulus. From the above classification (Fig-1), the disorders (e.g., neuropathy) of somatic …show more content…
The third and terminal branch of the trigeminal nerve (inferior alveolar nerve) that supply to the mandible is being affected to show the episode (Giuliani, Lajolo, Deli, & Silveri, 2001). In addition, the second branch of the trigeminal nerve (maxillary nerve) to show the effects. The nerves are also responsible for skin innervations. Therefore, Mary had experienced numbness and loss of sensation.
Fifth cranial nerve (trigeminal nerve) is affected to show the episode. The feeling of stabbing pain in upper jaw and teeth and slowly radiating towards nose is due to defective function of the maxillary nerve. The nerve is the second branch of trigeminal nerve. The initiating or trigger point is the loss of sensory or motor function of the second branch of fifth cranial nerve (Richard & Sanders, 2010)
The following are the cranial nerves that involve in regulation of functions of eye o Optic nerve: The sensory nerve is a second cranial nerve help in whole process of sight and vision. The nerve involves in the transmission of electrical signals from the various parts of eye to CNS (brain), then the brain send an appropriate response in the form of an image to see (the objects what we see around us). The defects in the cranial nerve (optic nerve) such as inflammation (neuritis) can cause the alterations in normal vision and sometimes even cause
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One group arises from the apex of the orbit to attach to the sclera anterior to the equator of the eye (rectus muscles- medial, lateral, superior and inferior) and second group consists of the oblique muscles (Double vision, 2012). The extra-ocular muscles are supplied by cranial nerves (the third, fourth or sixth cranial nerves). Among the cranial nerves, the nerve responsible for double vision is abducens nerve when she looks right. The probable cause for the double vision is the presence of lesions in the nerve. Since the lesions occur only in the nerve (branch) that supply the right eye not to the left eye. Therefore she was not experienced any double vision towards left