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Delve into the intricacies of the neuromuscular junction in this comprehensive 35-minute lecture, the second part of a two-part series. Explore the complex mechanisms of synaptic transmission, including the role of calcium ions, voltage-gated channels, and neurotransmitter release. Learn about acetylcholine's function as a key neurotransmitter and its interaction with nicotinic acetylcholine receptors. Understand the process of muscle fiber depolarization and its connection to muscle contraction. Gain insights into neuromuscular junction diseases, both genetic and autoimmune, such as Congenital myasthenic syndrome and myasthenia gravis. Enhance your knowledge of basic medical sciences and clinical medicine through this in-depth exploration of the neuromuscular system's structure and function.