Search results
Results from the WOW.Com Content Network
Central nervous system fatigue, or central fatigue, is a form of fatigue that is associated with changes in the synaptic concentration of neurotransmitters within the central nervous system (CNS; including the brain and spinal cord) which affects exercise performance and muscle function and cannot be explained by peripheral factors that affect muscle function.
The central nervous system (CNS) is the part of the nervous system consisting primarily of the brain and spinal cord.The CNS is so named because the brain integrates the received information and coordinates and influences the activity of all parts of the bodies of bilaterally symmetric and triploblastic animals—that is, all multicellular animals except sponges and diploblasts.
The central component of fatigue is triggered by an increase of the level of serotonin in the central nervous system. [133] During motor activity, serotonin released in synapses that contact motor neurons promotes muscle contraction. [134] During high level of motor activity, the amount of serotonin released increases and a spillover occurs.
Synaptic fatigue, or short-term synaptic depression, is an activity-dependent form of short term synaptic plasticity that results in the temporary inability of neurons to fire and therefore transmit an input signal. It is thought to be a form of negative feedback in order to physiologically control particular forms of nervous system activity. [1]
Changes to non-REM sleep have also been found, together suggesting a role of the autonomic nervous system. [47] Individuals often have a blunted heart rate response to exercise , but a higher heart rate during a tilt table test when the body is rotated from lying flat to an upright position.
There are many cortical and subcortical structures implicated in urination [54] and MS lesions in various central nervous system structures can cause these kinds of symptoms. Treatment objectives are the alleviation of symptoms of urinary dysfunction, treatment of urinary infections, reduction of complicating factors and the preservation of ...
The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.
Parkinson's disease (PD) is a neurodegenerative disease resulting from the apoptosis of dopaminergic neurons in the central nervous system, especially the substantia nigra, as well as heightened response to the excitatory neurotransmitter, glutamate (i.e., excitotoxicity). [12]