2. Why do we have pain sensation in the thermal grill experiment?
A. (A) disinhibition to cold pain
B. (B) only noxious cold pathway is evoked
C. (C) warm pathway facilitates noxious cold pathway
D. (D) cool pathway is over excited
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1. Which ascending pathway is responsible for regulating neuroendocrine and cardiovascular responses of pain?
A. (A) spinoreticular tract
B. (B) spinomesencephalic tract
C. (C) cervicothalamic tract
D. (D) spinohypothalamic tract
3. Where can we find the silent nociceptors?
A. (A) arms
B. (B) fingers
C. (C) viscera
D. (D) toes
2. How does hyperalgesia develop?
A. (A) sensitization of nociceptors
B. (B) desensitization of nociceptors
C. (C) adaptation of nociceptors
D. (D) habituation of nociceptors
1. Which type of nerve fibers is responsible for the second pain?
A. (A) Aα nerve fiber
B. (B) Aβ nerve fiber
C. (C) Aδ nerve fiber
D. (D) C nerve fiber
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