Dopamine is a neurotransmitter produced by the nervous system that is involved in the pleasure/reward system in the brain. The release of dopamine in response to a stimulus produces feelings of happiness and satisfaction. Cocaine is a type of drug that affects the brain response to dopamine. Usually after dopamine is released into the synaptic cleft, it is quickly re-absorbed into the neuron using dopamine transporters. However, cocaine blocks these transporters which causes dopamine to remain in the synaptic cleft for a long period of time. How would this impact the neuron's ability to communicate? Neurons will produce smaller action potentials because more dopamine is binding to receptors on the neuron, preventing the neuron from reaching the threshold potential Neurons will be under-stimulated because dopamine will bind to receptors and prevent ions from moving into the neuron, preventing electrical signaling Neurons will produce larger action potentials because more dopamine is binding to receptors on the neuron, leading to a larger electrical impulse Neurons will be overstimulated because dopamine will interact with receptors longer than normal, triggering more electrical impulses
Dopamine is a neurotransmitter produced by the nervous system that is involved in the pleasure/reward system in the brain. The release of dopamine in response to a stimulus produces feelings of happiness and satisfaction. Cocaine is a type of drug that affects the brain response to dopamine. Usually after dopamine is released into the synaptic cleft, it is quickly re-absorbed into the neuron using dopamine transporters. However, cocaine blocks these transporters which causes dopamine to remain in the synaptic cleft for a long period of time. How would this impact the neuron's ability to communicate? Neurons will produce smaller action potentials because more dopamine is binding to receptors on the neuron, preventing the neuron from reaching the threshold potential Neurons will be under-stimulated because dopamine will bind to receptors and prevent ions from moving into the neuron, preventing electrical signaling Neurons will produce larger action potentials because more dopamine is binding to receptors on the neuron, leading to a larger electrical impulse Neurons will be overstimulated because dopamine will interact with receptors longer than normal, triggering more electrical impulses
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:Dopamine is a neurotransmitter produced by the nervous system that is involved in
the pleasure/reward system in the brain. The release of dopamine in response to a
stimulus produces feelings of happiness and satisfaction.
Cocaine is a type of drug that affects the brain response to dopamine. Usually after
dopamine is released into the synaptic cleft, it is quickly re-absorbed into the neuron
using dopamine transporters. However, cocaine blocks these transporters which
causes dopamine to remain in the synaptic cleft for a long period of time.
How would this impact the neuron's ability to communicate?
Neurons will produce smaller action potentials because more dopamine is
binding to receptors on the neuron, preventing the neuron from reaching the
threshold potential
Neurons will be under-stimulated because dopamine will bind to receptors and
prevent ions from moving into the neuron, preventing electrical signaling
Neurons will produce larger action potentials because more dopamine is binding
to receptors on the neuron, leading to a larger electrical impulse
Neurons will be overstimulated because dopamine will interact with receptors
longer than normal, triggering more electrical impulses
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