Which statement about the effects of opiates on synaptic transmission is false? Group of answer choicesThey act on receptors that are coupled to G proteins that open potassium channels, close calcium channels, and inhibit adenylyl cyclase.They affect presynaptic autoreceptors and reduce the amount of transmitter released.They cause postsynaptic depolarization by opening potassium channels.They cause less transmitter to be released via axoaxonic inhibition.

Opiates tend to suppress medulla activity. What functions might they impact via effects on the medulla? Group of answer choicesLearning and memoryVisionNoneOlfactionBreathing

Drugs influence behavior by mimicking, increasing, or blocking the effects of a neurotransmitter.True false question.TrueFalse

Which statement describes a possible outcome for a neurotransmitter after release into the synaptic cleft?Group of answer choicesActivation of G-protein-coupled receptor on postsynaptic cellModulation by an enzyme, increasing its efficiencyReuptake into postsynaptic terminal via transporter proteinsActivation of voltage-gated ion channel on presynaptic cellUptake into postsynaptic cell via endocytosis

Opiates are dangerous at high doses due mostly to Group of answer choicestheir effects on cardiac muscle.the increased likelihood of a stroke.the suppression of the brainstem’s respiratory center.an overstimulation of the sympathetic nervous system.

Receptors for neurotransmitters are of primary functional importance in assuring one-way synaptic transmission because they are mostly found on theaxonal membrane.postsynaptic dendritic membrane.presynaptic membrane.axon hillock.SubmitRequest AnswerProvide Feedback