psych quiz

Which of the following is classified as an antagonist?

A tricyclic antidepressant, because they block serotonin and norepinephrine transporters.

Researchers looking to create a drug to reduce the symptoms of Alzheimer's disease would most likely focus their efforts on which of the following neurotransmitters?

Acetylcholine

The depletion of which of the following neurotransmitters is most closely associated with the symptoms of Alzheimer's disease?

Acetylcholine

The drugs that block the reabsorption of neurotransmitters in the synapse during neural transmission are

SSRIs

A drug that has the effect of intensifying or mimicking a particular neurotransmitter can be characterized as

an agonist, because it intensifies the effects of a particular neurotransmitter

Curare blocks action at acetylcholine synapses and causes paralysis. This drug is an example of an

antagonist

The area labeled X in the drawing above denotes which of the following structures?

axon terminals

Many common antidepressants ease symptoms of depression by

inhibiting serotonin reuptake, which makes serotonin more available

Dopamine, norepinephrine, and acetylcholine are all

neurotransmitters that excite or inhibit a neural signal across a synapse

Which of the following is the correct sequence of the neural chain of events set in motion by an environmental stimulus?

receptors, afferent neurons, interneurons, efferent neurons, effectors

Ben was enjoying a walk in the woods on a beautiful Saturday afternoon. As he went around a curve, he noticed a bear walking toward him. Immediately his pupils dilated, he began to perspire, and his heart accelerated. These changes are most closely related to the function of the

sympathetic nervous system