TY - CHAP M1 - Book, Section TI - Myasthenia Gravis & Other Disorders of the Neuromuscular Junction A1 - Faktorovich, Svetlana A1 - Patterson, Shanna K. A2 - Brust, John C.M. Y1 - 2019 N1 - T2 - CURRENT Diagnosis & Treatment: Neurology, 3e AB - The neuromuscular junction is the synaptic connection formed between a motor neuron axon and the muscle fiber it innervates. The transmitter used at the neuromuscular junction, acetylcholine, is stored in the presynaptic motor nerve terminals. The postsynaptic muscle membrane has many folds in which receptors for acetylcholine are located. When a motor nerve action potential reaches the presynaptic nerve terminal, there is a resultant increase in calcium conductance through voltage-gated calcium channels. This increase in intracellular calcium leads to the fusion of acetylcholine-filled presynaptic vesicles with the plasma membrane of the motor nerve terminal. Acetylcholine is subsequently released into the synaptic cleft by exocytosis. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/23 UR - neurology.mhmedical.com/content.aspx?aid=1159971355 ER -