Loss of nerve cells essay
Peripheral nerve damage PNI is a challenging problem with a variety of etiologies and symptoms. Injuries can be classified into three categories: neurapraxia, axonotmesis, and neurotmesis. Axonotmesis and neurotmesis result in Wallerian degeneration of the axons distal to the site of injury. After this process is completed, the value of the threshold potential depends on the membrane permeability, the intra- and extracellular concentration of ions and the properties of the cell membrane. An action potential has three phases: depolarization, overshoot and repolarization. There are two more states of the membrane potential related to the action potential. Muscle atrophy is a loss of muscle mass. Muscle hypertrophy is an increase in your muscle mass. Your muscle fibers become larger or thicker. Muscle hypertrophy occurs due to an increase in the volume of your muscle cells. You can experience muscle hypertrophy through exercise routines such as strength training or high-intensity interval training. This inflammation occurs as a direct result of the process of nerve cell loss or cell death, which causes the immune system to release pro-inflammatory cytokines. Interestingly, this inflammatory process can actually also cause further cell death, which can worsen Parkinson's symptoms. A neuron is a nerve cell that processes and transmits information via electrical and chemical signals in the nervous system. Neurons consist of a cell body, dendrites that receive signals, and this is the most common hereditary ataxia. This involves damage to the cerebellum, spinal cord and peripheral nerves. Peripheral nerves carry signals from the arms and legs to the brain and spinal cord. Symptoms usually appear long before. A brain scan usually does not show any changes in the cerebellum with this type of ataxia. The eye disease leads to a gradual loss of vision in the center of the visual field due to damage to light-sensitive nerve cells in the retina, called photoreceptors. Palanker's laboratory has developed a technology that does the work of photoreceptors, a photovoltaic implant that converts incident light into electrical current and transmits the energy. During central nervous system (CNS) development, oligodendrocytes generate a multilayered stack of membranes that are firmly attached to their cytosolic and external surfaces 1, 2. In cross-sectional electron micrographs of nerves, the typical repeating units of the myelin sheath with alternating electron density, Introduction. The nervous system is divided into the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS is the most complex system in the human body and is responsible for integrating and processing the information conveyed by the nerves and controlling the responses of different parts of the human body. body organs,