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Translational Dysregulation in Autism
Translational Dysregulation in Autism

... 166 individuals have ASD and it is estimated that more than 50% of those with ASD have intellectual disability [1]. ASD is among the most heritable neuropsychiatric disorders, and available evidence points to a complex genetic basis [2]. Whereas the genetic influences that cause ASD are heterogeneou ...
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MORPHOLOGICAL EVIDENCE OF NEUROMUSCULAR JUNCTION

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The Adenosine Story Goes Ionic: CaV2.1

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NEURAL CONNECTIONS: Some You Use, Some You Lose

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Huisman and Bisseling.

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Stochastic Model of Central Synapses: Slow Diffusion of Transmitter

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... declarative memory, things that are transiently stored in parts of the brain, like the hippocampus, and then stored in the cortex. c. We know this because we all have pneumonics that we use to remember things. d. The reason associative memory is useful is because it is like storing information by im ...
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Vm = Vin – Vout V = IR V = I/g Ix = gx (Vm – Ex)

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Biosc_48_Chapter_9_lecture

... Preganglionic neurons originate from the brainstem or sacral region of the spinal cord. a. Also called the craniosacral division b. They synapse on ganglia located near or in effector organs; called terminal ganglia c. Preganglionic neurons do not travel with somatic neurons (as sympathetic postgang ...
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< 1 ... 65 66 67 68 69 70 71 72 73 ... 227 >

Chemical synapse



Chemical synapses are specialized junctions through which neurons signal to each other and to non-neuronal cells such as those in muscles or glands. Chemical synapses allow neurons to form circuits within the central nervous system. They are crucial to the biological computations that underlie perception and thought. They allow the nervous system to connect to and control other systems of the body.At a chemical synapse, one neuron releases neurotransmitter molecules into a small space (the synaptic cleft) that is adjacent to another neuron. The neurotransmitters are kept within small sacs called vesicles, and are released into the synaptic cleft by exocytosis. These molecules then bind to receptors on the postsynaptic cell's side of the synaptic cleft. Finally, the neurotransmitters must be cleared from the synapse through one of several potential mechanisms including enzymatic degradation or re-uptake by specific transporters either on the presynaptic cell or possibly by neuroglia to terminate the action of the transmitter.The adult human brain is estimated to contain from 1014 to 5 × 1014 (100–500 trillion) synapses. Every cubic millimeter of cerebral cortex contains roughly a billion (short scale, i.e. 109) of them.The word ""synapse"" comes from ""synaptein"", which Sir Charles Scott Sherrington and colleagues coined from the Greek ""syn-"" (""together"") and ""haptein"" (""to clasp""). Chemical synapses are not the only type of biological synapse: electrical and immunological synapses also exist. Without a qualifier, however, ""synapse"" commonly means chemical synapse.
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