Chapter 3: PSY-432 (1267-11239) PSYCHOPHYSIOLOGY DRUGS AND BEHVR (Fall 2026 M16) 002

When GABA binds to its receptor, chloride rushes into the cell.

 

True

 

False

True

Which of the following is the incorrect association?

 

Medulla—balance, posture, and coordination

 

Limbic system—emotions and memory

 

Pituitary gland—hormones

 

Prefrontal cortex—reasoning, judgment, and decisions

Medulla—balance, posture, and coordination

If you block reuptake, you increase the amount of neurotransmitter in the synapse.

 

True

 

False

True

Which of the following statements is false about the peripheral nervous system?

 

It includes the sympathetic and parasympathetic systems.

 

It is divided into the somatic and autonomic nervous systems.

 

It is divided into the somatic and central nervous systems.

 

It is made up of nerves that run to and from the central nervous system.

It is divided into the somatic and central nervous systems.

The _______ is most directly involved with basic vegetative processes such as breathing and heart rate.

 

basal ganglia

 

hypothalamus

 

frontal lobe

 

medulla

medulla

If a drug binds to the limbic system of the brain, it will most likely affect

 

movement.

 

vision.

 

the initiation of the breathing process.

 

emotions.

emotions.

Which is true about the blood–brain barrier?

 

The blood–brain barrier is structurally very similar to the placenta.

 

It prevents fat soluble substances from entering the brain.

 

The capillaries in the brain have almost no pores, unlike the capillaries in the liver or kidney.

 

It prevents all the substances in blood from entering the brain.

The capillaries in the brain have almost no pores, unlike the capillaries in the liver or kidney.

If you were to block the reuptake of a neurotransmitter, it would increase that neurotransmitter's effects at the postsynaptic neuron.

 

False

 

True

True

Which of the following is true about the sympathetic nervous system?

 

Its actions are determined by food.

 

It increases activity of the digestive tract.

 

It increases heart rate.

 

It is part of the central nervous system.

It increases heart rate.

Which is the main inhibitory neurotransmitter of the brain?

 

Glutamate

 

GABA

 

Dopamine

 

Serotonin

GABA

Professor Bunson T. Honeydew has developed a new drug. It increases sleep, acts as a muscle relaxant, reduces anxiety, and slows heart rate. At high enough doses it may depress respiration. Which neurotransmitter does it most likely affect?

 

Anandamide

 

Norepinephrine

 

GABA

 

Dopamine

GABA

The ________ lobe is most directly involved with decisions, judgment, and reasoning.

 

occipital

 

frontal

 

parietal

 

temporal

frontal

An ionotropic receptor is a type of receptor that is itself also an ion channel.

 

False

 

True

True

Which of the drugs below does not primarily affect serotonin?

 

MDMA/ecstasy/Molly

 

Xanax

 

LSD

 

Prozac

Xanax

Who was Phineas Gage?

 

The man who discovered the blood–brain barrier.

 

The man who discovered the first neurotransmitter.

 

A device used to measure the number of phineas in the brain.

 

The foreman of a railway crew who had an iron rod shot through his skull, severing his front lobe.

The foreman of a railway crew who had an iron rod shot through his skull, severing his front lobe.

Put the following steps in order to describe the process of neural transmission at a synapse:

1. Neurotransmitter binds to the receptor on the postsynaptic neuron.

2. Vesicles from the presynaptic neuron release their neurotransmitter into the synapse.

3. The neurotransmitter is taken back into the presynaptic neuron.

4. The action potential comes down the presynaptic neuron.

5. The postsynaptic cell fires.

4, 2, 1, 5, 3

Which of the following is not one of the three main dopaminergic pathways in the brain?

 

The nigrostriatal pathway that helps control movement

 

The pontocerebellar pathway that helps control sleep and appetite

 

The mesolimbic pathway that is important in regulating mood, emotions, and addiction

 

The mesocortical pathway that is important in problem solving and planning

The pontocerebellar pathway that helps control sleep and appetite

Dopamine is primarily…

 

for sleep and sedation.

 

for pain.

 

the main excitatory neurotransmitter of the brain.

 

for movement, reward, and addiction.

for movement, reward, and addiction.

Which of the following is most directly involved with hormones?

 

Hypothalamus

 

All of the above

 

Pineal gland

 

Pituitary gland

All of the above

Which of the following is true about an action potential?

 

During depolarization, for a brief time, sodium ions rush into the neuron.

 

An action potential is the name given to the reuptake of neurotransmitter across the synapse.

 

At rest, the inside of the neuron is positively charged.

 

Action potentials occur in the dendrites of a neuron.

During depolarization, for a brief time, sodium ions rush into the neuron.