brochure week 2 - Normal Pain Response If you step on...

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Normal Pain Response If you step on something sharp and this causes tissue damage. This causes pain receptors in the skin to trigger. Each pain receptor forms one end of a neuron and is linked to the other end in the spinal cord by an axon. When the pain receptor is triggered it sends an electrical signal up the nerve fiber. This nerve fiber is bundled with numerous others to create a peripheral nerve. The electrical signal passes up the neuron with in the peripheral nerve to reach the spinal cord, inside an area of the spinal cord called the dorsal horn the electrical signals are communicated from one neuron to another across intersections by means of transmitters. Signals are then delivered up the spinal cord to the brain. As soon as the signal extents to the brain it passes to the thalamus. Here the signal is organized and send to diverse parts of the brain. In this case it is sent to the somatosensory cortex that is responsible for physical sensation, the Effects of Opiates on Pain Opiates are drugs that are both prescription and illegal, such as morphine, heroin, oxycodone, and cocaine. These drugs are all very addictive, even if prescribed. Opiates depress nerve transmission in the
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