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Zanzabum
3 years ago
5

Describe the process of nociception using the four phases of

Biology
1 answer:
son4ous [18]3 years ago
3 0

Nociception can be described as a response to harmful or potentially harmful stimuli (chemical, mechanical, thermal).  It includes four stages:

1.Transduction or  first phase: A noxious stimulus occurs (injury, burn, incision) and it is transformed into a electrical signal that can be carried via transmission.

2. Transmission or the 2nd phase: the pain signal travels to the central nervous system, first to  the spinal cord than to the brain.  

3. Perception or the 3rd phase: occurs in the cerebral cortex where the perception of pain is generated (the conscious awareness of a painful sensation).

4. Modulation-last phase: pain message is usually inhibited through this phase.


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