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1. What is a protective and complex phenomenon composed of sensory experiences (time,space, intensity), emotion, cognition, and motivation?:
Answer:
Pain
2. Portion of the nervous system responsible for sensation and perception of pain
can be divided into 3 areas:
Answer:
A: Afferent pathways B interpretive centersin the brainstem, midbrain &
diencephalon C: descending pathways from the brainto the dorsal horn of spinal
cord.
3. Nociceptors are pain receptors that detect a wide range ofstimuli and
respond to:
Answer:
Chemical, mechanical, and thermal stimulation
4. The afferent system is:
Answer:
Composed of nociceptors the dorsal horn of the spinal column (second-order
neurons) and afferent neurons in the A´and C fibers(first-order
neurons);spinothalamic tract (third-order neurons).
5. Myelinated A´receptor transmission is:
Answer:
Fast and conveys mechanical andthermal localized pain.
6. Unmyelinated polymodal C fiber transmission is:
Answer:
Slower and conveyssharp, diffuse burning and aching sensations
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