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A neuromuscular junction (or myoneural junction) is a chemical synapse between a motor neuron and a muscle fiber. [1] It allows the motor neuron to transmit a signal to the muscle fiber, causing muscle contraction. [2] Muscles require innervation to function—and even just to maintain muscle tone, avoiding atrophy.
The term "trigger point" was coined in 1942 by Dr. Janet Travell to describe a clinical finding with the following characteristics: [citation needed]. Pain related to a discrete, irritable point in skeletal muscle or fascia, not caused by acute local trauma, inflammation, degeneration, neoplasm or infection.
Neuromuscular junction, axon terminal contacting a muscle cell; Endocytosis to recycle vesicles after use; Vesicular monoamine transporter, loading vesicles with neurotransmitter. Optogenetic methods to measure cellular activity
A neural pathway connects one part of the nervous system to another using bundles of axons called tracts. The optic tract that extends from the optic nerve is an example of a neural pathway because it connects the eye to the brain; additional pathways within the brain connect to the visual cortex.
Repetitive nerve stimulation is a variant of the nerve conduction study where electrical stimulation is delivered to a motor nerve repeatedly several times per second. By observing the change in the muscle electrical response (CMAP) after several stimulations, a physician can assess for the presence of a neuromuscular junction disease, and differentiate between presynaptic and postsynaptic ...
Depolarizing neuromuscular blockers: Depolarizing neuromuscular blockers directly bind to postsynaptic cholinergic receptors of the neuromuscular junction to generate a sustained action potential. This causes prolonged stimulation and desensitization of neuroreceptors, causing skeletal muscle relaxation effects such as paralysis. [ 1 ]