INBDE (Integrated National Board Dental Examination) Practice Exam

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How is pain information transmitted from the PNS to the CNS?

Modulation
Transmission
Transduction
Reflection

The correct answer is: Transduction

Pain information is transmitted from the peripheral nervous system (PNS) to the central nervous system (CNS) through a process known as transduction. Transduction involves the conversion of painful stimuli into electrical signals that can be transmitted along nerve fibers to the CNS for further processing and interpretation. Modulation refers to the process of altering or changing the strength or quality of the pain signal, rather than the initial transmission of the signal. Transmission, as a term, more broadly refers to the overall process of sending nerve signals, not specifically associated with the initial conversion of stimuli into nerve impulses. Reflection does not pertain to the transmission of pain information from the PNS to the CNS in the context of neurophysiology.