Houten brievenbus online dating

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The enteric nervous system functions to control the gastrointestinal system.Both autonomic and enteric nervous systems function involuntarily.Grey matter is found in clusters of neurons in the brain and spinal cord, and in cortical layers that line their surfaces.

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In vertebrate species it consists of two main parts, the central nervous system (CNS) and the peripheral nervous system (PNS). The PNS consists mainly of nerves, which are enclosed bundles of the long fibers or axons, that connect the CNS to every other part of the body.The head segment contains the brain, also known as the supraesophageal ganglion.In the insect nervous system, the brain is anatomically divided into the protocerebrum, deutocerebrum, and tritocerebrum.Immediately behind the brain is the subesophageal ganglion, which is composed of three pairs of fused ganglia.It controls the mouthparts, the salivary glands and certain muscles.

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