Question 1

Which type of fibers are myelinated and conduct signals quickly?

Accepted Answer

A fibers

Answer

B fibers

Answer

C fibers

Answer

D fibers

Question 2

Which structures do A fibers end in?

Accepted Answer

Ruffini, Pacinian, Meissner

Answer

Nociceptors

Answer

Free nerve endings

Answer

Merkel discs

Question 3

Where do C fibers end?

Accepted Answer

in the superficial layers of the skin

Answer

in the bones

Answer

in the muscle fibers

Answer

in the deep layers of the skin

Question 4

What is the conducting speed of C fibers?

Accepted Answer

slow

Answer

fast

Answer

variable

Answer

medium

Question 5

What is nociception?

Accepted Answer

The relay of pain signal from periphery to the brain

Answer

The suppression of pain signals in the brain

Answer

The perception of pain without any stimuli

Answer

The process of feeling stimuli

Answer

The transmission of pain signals from the brain to the periphery

Question 6

What is the term for drugs derived from the opium poppy plant?

Accepted Answer

Opiates

Answer

Hallucinogens

Answer

Stimulants

Answer

Tranquilizers

Question 7

What type of receptors are opioid receptors?

Accepted Answer

Inhibitory G protein coupled receptors

Answer

Excitatory ion channels

Answer

Excitatory G protein coupled receptors

Answer

Inhibitory ion channels

Question 8

What happens when opioid receptors are activated by agonists like morphine?

Accepted Answer

Decreased likelihood that the neuron will fire

Answer

Increased likelihood that the neuron will fire

Answer

The neuron becomes inactive

Answer

No effect on the neuron

Question 9

Activation of the mu delta kappa receptor leads to what effect?

Accepted Answer

analgesia/euphoria

Answer

decreases anxiety

Answer

hallucinations

Answer

dysphoria

Question 10

Which of the following drugs is NOT a typical agonist for the mu delta kappa receptor?

Accepted Answer

salvinorin

Answer

morphine

Answer

oxycodone

Answer

heroin

Question 11

What is dopamine involved in?

Accepted Answer

motivated behavior

Answer

muscle contraction

Answer

memory formation

Answer

immune response

Question 12

Where are dopamine neurons primarily located?

Accepted Answer

ventral tegmental area (VTA)

Answer

hippocampus

Answer

cerebellum

Answer

cerebral cortex

Question 13

What happens when opioids inhibit inhibition in the VTA?

Accepted Answer

dopamine release

Answer

serotonin release

Answer

acetylcholine release

Answer

glutamate release

Question 14

Where are cannabinoid receptors located?

Accepted Answer

on the presynaptic membrane

Answer

in the nucleus

Answer

on the postsynaptic membrane

Answer

in the cytoplasm

Question 15

What happens when cannabinoid receptors are activated?

Accepted Answer

decrease in cyclic adenosine monophosphate (cAMP) accumulation

Answer

increase in cAMP accumulation

Answer

increase in neurotransmitter release

Answer

increase in calcium influx

Question 16

What type of receptors are cannabinoid receptors?

Accepted Answer

G-protein coupled receptors (Gi coupled)

Answer

kinase receptors

Answer

enzyme receptors

Answer

ion channels

Question 17

What is psychological dependence?

Accepted Answer

Compulsive drug-seeking behavior in which the individual uses the drug receptively for personal satisfaction

Answer

A physiological response to drug withdrawal

Answer

An addiction to prescription drugs

Answer

A resistance to the effects of drugs

Question 18

What is physiological dependence?

Accepted Answer

Withdrawal of the drug produces symptoms and signs that are frequently opposite of those sought by the user

Answer

A tolerance to drug effects

Answer

A psychological need for drugs

Answer

An allergic reaction to drugs

Question 19

What is the mechanism of action of stimulants?

Accepted Answer

Increases activity of sympathetic nervous system

Answer

Inhibits neurotransmitter action

Answer

Decreases activity of sympathetic nervous system

Answer

Increases activity of parasympathetic nervous system

Question 20

What transmits information down the axon?

Accepted Answer

An action potential

Answer

Terminal bulb

Answer

Synapses

Answer

Dendrites

Question 21

Which part of a neuron receives both chemical and electrical signals?

Accepted Answer

dendrites

Answer

synapses

Answer

terminal bulb

Answer

axon

Question 22

What type of molecule does morphine mimic?

Accepted Answer

An endorphin molecule

Answer

An adrenaline molecule

Answer

A serotonin molecule

Answer

A dopamine molecule

Question 23

What receptor does morphine bind to?

Accepted Answer

The endorphin receptor

Answer

The serotonin receptor

Answer

The adrenaline receptor

Answer

The dopamine receptor

Question 24

What is the function of an agonist?

Accepted Answer

Activates the receptor to produce a biological response.

Answer

Blocks a biological response.

Answer

Enhances a biological response.

Answer

Inactivates a receptor.

Question 25

What does an antagonist do?

Accepted Answer

Blocks or dampens a biological response by binding to and blocking a receptor.

Answer

Activates a biological response.

Answer

Enhances a biological response.

Answer

Inactivates a receptor.

Question 26

What are the two types of receptors found at cholinergic synapses?

Accepted Answer

Nicotinic and muscarinic

Answer

P1 and P2 receptors

Answer

Dopamine receptors

Answer

Alpha and Beta adrenergic receptors

Question 27

What are the three types of receptors found at adrenergic synapses?

Accepted Answer

Alpha and Beta adrenergic receptors & dopamine receptors

Answer

NMDA receptors

Answer

P1 and P2 receptors

Answer

Nicotinic and muscarinic receptors

Question 28

What is released at purinergic synapses?

Accepted Answer

urine nucleotides or nucleosides

Answer

acetylcholine

Answer

adenosine

Answer

catecholamines

Question 29

What is adenosine?

Accepted Answer

Endogenous inhibitory neurotransmitter

Answer

A stimulant drug

Answer

A type of receptor

Answer

A type of coffee

Question 30

When does caffeine synthesis begin in the coffee fruit?

Accepted Answer

After fertilization

Answer

Seeds and surrounding fleshy tissue develop

Answer

Maximum caffeine concentration reached when berry is red color

Answer

Berries picked

Question 31

What is the maximum caffeine concentration in the coffee fruit?

Accepted Answer

2% of dry weight

Answer

After fertilization

Answer

Berries picked

Answer

Seeds and surrounding fleshy tissue develop

Question 32

What color does the coffee berry turn when it reaches the maximum caffeine concentration?

Accepted Answer

Red

Answer

Green

Answer

Purple

Answer

Yellow

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