翻訳と辞書 Words near each other ・ End-Botomian mass extinction ・ End-diastolic volume ・ End-Ediacaran extinction ・ End-group ・ End-of-file ・ End-of-history illusion ・ End-of-life ・ End-of-life (product) ・ End-of-life care ・ End-of-text character ・ End-of-the-day betting effect ・ End-of-train device ・ End-of-transmission character ・ End-of-year rugby union internationals ・ End-on-end ・ End-plate potential ・ End-sequence profiling ・ End-stopping ・ End-systolic volume ・ End-Time Illusion ・ End-to-end ・ End-to-end auditable voting systems ・ End-to-end delay ・ End-to-end encryption ・ End-to-end principle ・ End-to-end vector ・ End-use certificate ・ End-user (disambiguation) ・ End-user certificate ・ End-user computing Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク End-plate potential ： ウィキペディア英語版 End-plate potential End plate potentials (EPPs) are the depolarizations of skeletal muscle fibers caused by neurotransmitters binding to the postsynaptic membrane in the neuromuscular junction. They are called "end plates" because the postsynaptic terminals of muscle fibers have a large, saucer-like appearance. When an action potential reaches the axon terminal of a motor neuron, vesicles carrying neurotransmitters (mostly acetylcholine) are exocytosed and the contents are released into the neuromuscular junction. These neurotransmitters bind to receptors on the postsynaptic membrane and lead to its depolarization. In the absence of an action potential, acetylcholine vesicles spontaneously leak into the neuromuscular junction and cause very small depolarizations in the postsynaptic membrane. This small response (~0.5mV) is called a miniature end plate potential (MEPP) and is generated by one acetylcholine-containing vesicle. It represents the smallest possible depolarization which can be induced in a muscle. == Neuromuscular junction == The neuromuscular junction is the synapse that is formed between an alpha motor neuron (α-MN) and the skeletal muscle fiber. When a muscle contracts, an action potential is propagated down a nerve until it reaches the axon terminal of the motor neuron. The motor neuron then innervates the muscle fibers to contraction by causing an action potential on the postsynaptic membrane of the neuromuscular junction. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「End-plate potential」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.