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Anosmia is the inability to perceive odor, or in other words a lack of functioning olfaction.Many patients may experience unilateral or bilateral anosmia. A temporary loss of smell can be caused by a blocked nose or infection. In contrast, a permanent loss of smell may be caused by death of olfactory receptor neurons in the nose or by brain injury in which there is damage to the
Paralysis (pl.: paralyses; also known as plegia) is a loss of motor function in one or more muscles. Paralysis can also be accompanied by a loss of feeling (sensory loss) in the affected area if there is sensory damage. In the United States, roughly 1 in 50 people have been diagnosed with some form of permanent or transient paralysis. [1]
The causes of nerve damage are grouped into categories including those due to paraneoplastic causes (neuropathy secondary to cancer), immune mediated, infectious, inherited or degenerative causes and those due to toxin exposure. In idiopathic sensory neuronopathy no cause is identified. Idiopathic causes account for about 50% of cases. [2]
Hypoesthesia or numbness is a common side effect of various medical conditions that manifests as a reduced sense of touch or sensation, or a partial loss of sensitivity to sensory stimuli. In everyday speech this is generally referred to as numbness.
When joint position and vibratory sensory loss are present, sensory participation is more selective. Defects in the central nervous system, peripheral nervous system, or muscle itself are the cause of numerous congenital illnesses of sensory and motor function. Owing to the vast territory encompassed by the somatic nerve system, these ailments ...
Dissociated sensory loss is a pattern of neurological damage caused by a lesion to a single tract in the spinal cord which involves preservation of fine touch and proprioception with selective loss of pain and temperature. Understanding the mechanisms behind these selective lesions requires a brief discussion of the anatomy involved.
Scientists are piecing together why some people lose their sense of smell after contracting COVID-19.
Examples of medical conditions that can cause neuropathies are diabetes mellitus, chronic kidney disease, thyroid dysfunction (hyper- and hypothyroidism) as well as hepatitis, liver cirrhosis and alcohol dependency. Autism, sensory processing disorder, etc. can also affect haptic sensitivity. Loss of the sense of touch is a catastrophic deficit ...