Search results
Results from the WOW.Com Content Network
In the brain, serotonin is a neurotransmitter and regulates arousal, behavior, sleep, and mood, among other things. [9] During prolonged exercise where central nervous system fatigue is present, serotonin levels in the brain are higher than normal physiological conditions; these higher levels can increase perceptions of effort and peripheral muscle fatigue. [9]
This response causes an increase in heart-rate, blood pressure, and accelerated breathing. The kidneys release glucose, providing energy to combat or flee the stressor. [12] Blood is redirected to the brain and major muscle groups, diverted away from energy consuming bodily functions unrelated to survival at the present time. [11]
The pain you’re feeling when you get brain freeze is actually from a layer of receptor cells in the outer covering of the brain, called the meninges. This is where the internal carotid artery ...
The central nervous system (CNS) is the part of the nervous system consisting primarily of the brain, spinal cord and retina.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 breakdown of the tight endothelial junctions that make up the blood–brain barrier causes extravasation of fluid, ions, and plasma proteins, such as albumin, into the brain parenchyma. [18] Accumulation of extracellular fluid increases brain volume and then intracranial pressure causing the symptoms of cerebral edema. [1]
The cerebellum (Latin for “little brain”) is a distinct part of your brain that is attached to the rest of your brain at the back of your head. The cerebellum is only about one-tenth the size ...
Synaptic fatigue can affect many synapses of many different types of neurons. [6] The existence and observations of synaptic fatigue are accepted universally, although the exact mechanisms underlying the phenomenon are not completely understood. It is generally seen in mature cells at high frequencies of stimuli (>1 Hz).
Wernicke encephalopathy (WE), also Wernicke's encephalopathy, [1] or wet brain is the presence of neurological symptoms caused by biochemical lesions of the central nervous system after exhaustion of B-vitamin reserves, in particular thiamine (vitamin B 1). [2]