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Questions and Answers
According to the gate control theory, which neural structure in the spinal cord can open and close to modulate the perception of pain?
According to the gate control theory, which neural structure in the spinal cord can open and close to modulate the perception of pain?
- The substantia gelatinosa (correct)
- The dorsal column fibers
- The dorsal horn
- The central transmission cells
What did Melzack and Wall describe in 1965?
What did Melzack and Wall describe in 1965?
- The pain-modulating system (correct)
- The opening and closing of the neural gate
- The three systems located in the spinal cord
- The role of psychological factors in pain perception
What happens when the gate is closed according to the gate control theory?
What happens when the gate is closed according to the gate control theory?
- Pain signals excite dorsal horn transmission neurons
- Signals from small diameter pain fibers excite the dorsal horn transmission neurons
- Stimulation of large-diameter fibers inhibits the transmission of pain (correct)
- Noxious impulses are influenced by a gating mechanism
Which fibers stimulate the opening of the gate according to the gate control theory?
Which fibers stimulate the opening of the gate according to the gate control theory?
What role do psychological factors play in the perception of pain according to the gate control theory?
What role do psychological factors play in the perception of pain according to the gate control theory?
Flashcards
Pain modulation in spinal cord
Pain modulation in spinal cord
The substantia gelatinosa in the spinal cord can open or close to control how we perceive pain.
Melzack and Wall's 1965 description
Melzack and Wall's 1965 description
They described the system that helps control how painful something feels.
Closed pain gate
Closed pain gate
Large-diameter fibers are activated, stopping pain signals from getting through.
Pain gate opening
Pain gate opening
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Psychology's effect on pain
Psychology's effect on pain
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Study Notes
Gate Control Theory
- The neural structure in the spinal cord that can open and close to modulate the perception of pain is the "gate".
Melzack and Wall's Contribution
- In 1965, Melzack and Wall described the gate control theory.
Gate Closure
- When the gate is closed, the transmission of pain signals to the brain is blocked.
Gate Stimulation
- The gate is opened by stimulation of small, unmyelinated C-fibers and A-delta fibers, which transmit pain information.
- The gate is closed by stimulation of large, myelinated A-beta fibers, which transmit non-painful sensations.
Psychological Factors
- According to the gate control theory, psychological factors, such as anxiety, attention, and past experiences, can influence the perception of pain by modulating the opening and closing of the gate.
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Description
Test your knowledge on the Gate Control Theory of Pain with this quiz. Explore major concepts and understand how psychological factors influence the perception of pain.
