EOG8Q5C4M GO:0005759 32/108 mitochondrial matrix cellular_component "The gel-like material, with considerable fine structure, that lies in the matrix space, or lumen, of a mitochondrion. It contains the enzymes of the tricarboxylic acid cycle and, in some organisms, the enzymes concerned with fatty acid oxidation." [GOC:as, ISBN:0198506732] EOG8Q5C4M GO:0007274 1/108 neuromuscular synaptic transmission biological_process "The process of communication from a neuron to a muscle, across a synapse." [GOC:jl, MeSH:D009435] EOG8Q5C4M GO:0005739 1/108 mitochondrion cellular_component "A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration." [GOC:giardia, ISBN:0198506732] EOG8Q5C4M GO:0050848 1/108 regulation of calcium-mediated signaling biological_process "Any process that modulates the frequency, rate or extent of calcium-mediated signaling, the process in which a cell uses calcium ions to convert an extracellular signal into a response." [GOC:ai]