Asked by Kaitlyn Hicks on May 05, 2024
Verified
Enkephalins produce presynaptic inhibition in neurons transmitting pain signals. Increased levels of enkephalins will
A) increase awareness of pain.
B) decrease awareness of pain.
C) increase amount of pain.
D) decrease amount of pain.
E) have no effect on awareness or amount of pain.
Enkephalins
Peptides in the brain that bind to opiate receptors, acting as natural painkillers and also involved in various bodily functions.
Presynaptic Inhibition
Presynaptic Inhibition is a mechanism where the release of neurotransmitters from a neuron is decreased, modulating neural activity and preventing overstimulation.
Pain Signals
Neural transmissions that convey the sensation of pain from the peripheral nervous system to the central nervous system.
- Recognize the roles played by various neurotransmitters.
- Examine the impacts of pharmaceuticals and toxins on synaptic activity.
Verified Answer
AH
ASIIMWE HARRIETMay 11, 2024
Final Answer :
B
Explanation :
Enkephalins are endogenous opioids that inhibit pain transmission by reducing the release of substance P, a neurotransmitter involved in the transmission of pain signals, thereby decreasing the awareness of pain.
Learning Objectives
- Recognize the roles played by various neurotransmitters.
- Examine the impacts of pharmaceuticals and toxins on synaptic activity.