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Figure 4 Electron micrograph of presynaptic terminal in the colliculus inferior region of the brain in control and white noise exposed cats. (A) Relatively uniform distribution of spherical synaptic vesicles in axo-dendritic synapse of control animal. Most part of synaptic vesicles is spherically shaped. (B) Postsynapic region with destroyed mitochondria (black arrows). Scale bar = 250 nm

Figure 4 Electron micrograph of presynaptic terminal in the colliculus inferior region of the brain in control and white noise exposed cats. (A) Relatively uniform distribution of spherical synaptic vesicles in axo-dendritic synapse of control animal. Most part of synaptic vesicles is spherically shaped. (B) Postsynapic region with destroyed mitochondria (black arrows). Scale bar = 250 nm