Pathophysiology
Clinical meaning
Neurological disorders encompass a variety of conditions affecting the brain, spinal cord, and peripheral nerves. At the cellular level, these disorders often involve disruptions in neurotransmitter function, neuronal injury, and inflammation. For instance, in conditions like multiple sclerosis, demyelination leads to impaired conduction of electrical impulses, affecting communication between neurons. Similarly, in Alzheimer’s disease, the accumulation of amyloid plaques and tau tangles results in neuronal death and synaptic dysfunction. Ischemic strokes occur when blood flow is obstructed, leading to neuronal hypoxia and death. The pathophysiological changes in neurological disorders can be characterized by altered cellular metabolism, excitotoxicity from excessive glutamate, and neuroinflammation, which further perpetuates neuronal damage. Understanding these mechanisms is crucial for effective assessment and management.