Deck 3: True-False

Question 1

During an action potential,potassium gates open,allowing potassium to rush into the cell.

Answer 1

False

Question 2

Multiple sclerosis is associated with the deterioration of the myelin sheath covering the axon.

Answer 2

True

Question 3

Most neurotransmitters can bind with most types of receptor sites.

Answer 3

False

Question 4

Electrochemical action involves both conduction and transmission.

Question 5

Only electrical stimulations that are above a threshold can initiate an action potential.

Question 6

Interneurons carry signals from the spinal cord to the muscles to activate movement.

Question 7

The resting potential of a neuron is approximately -70 millivolts.

Question 8

An action potential cannot occur during the refractory period.

Question 9

Bipolar cells are specialized neurons found in the cerebellum.

Question 10

Glial cells form the nucleus of the cell body.

Question 11

Of the three major types of neurons,the majority of the neurons in the nervous system are interneurons.

Question 12

The cell body of the neuron transmits information to other neurons.

Question 13

During the refractory period,a chemical pump moves sodium into the cell and potassium out of the cell.

Question 14

The body of the cell containing its nucleus is termed the axon.

Question 15

Neurotransmitters will remain in the synapse until they bind to a receptor on a postsynaptic neuron.

Question 16

Electrochemical conduction refers to the movement of an electric signal within a neuron.

Question 17

GABA is the main excitatory neurotransmitter in the brain.

Question 18

Dendrites are parts of the neuron that receive information from other neurons.

Question 19

There are more neurons in the brain than glial cells.

Question 20

Purkinje cells are interneurons that carry information from the cerebellum to the rest of the central nervous system.

Question 21

The release of endorphins dulls the experience of pain.

Question 22

The central nervous system consists of both the brain and the spinal cord.

Question 23

The two major subdivisions of the peripheral nervous system are sympathetic and parasympathetic.

Question 24

Beta blockers are antagonists for the neurotransmitter acetylcholine.

Question 25

L-dopa is a common drug used to treat the delusions associated with schizophrenia.

Question 26

The brain of a person on a heightened state of alertness may exhibit enhanced activity of the endorphins.

Question 27

Alzheimer's disease is associated with a deterioration of serotonin-producing neurons.

Question 28

An excess of glutamate activity can cause seizures.

Question 29

Amphetamine and cocaine both prevent the reuptake of norepinephrine and dopamine.

Question 30

Drugs that block the reuptake of serotonin are used in treating depression.

Question 31

The sympathetic nervous system prepares the body for action in life-threatening situations.

Question 32

Dopamine is involved in associating actions with rewards.

Question 33

Low levels of dopamine have been linked to schizophrenia.

Question 34

The spinal cord is the major component of the peripheral nervous system.

Question 35

Amphetamine stimulates the release of norepinephrine and dopamine.

Question 36

A drug agonist enhances the activity of a neurotransmitter.

Question 37

Prozac acts as an antagonist for serotonin.

Question 38

Morphine has similar chemical properties to the neurotransmitter dopamine.

Question 39

L-dopa acts as an antagonist for dopamine.

Question 40

One of the functions of the sympathetic nervous system is to increase digestion.

Question 41

Lesions to some areas of the hypothalamus result in overeating.

Question 42

The thalamus is part of the limbic system.

Question 43

The reticular formation is important for regulating sleep,wakefulness,and arousal.

Question 44

Jenkins rapidly swivels his head to the sound of a car backfiring down the street,a behavior made possible by his tectum.

Question 45

One of the functions of the parasympathetic nervous system is to relax the bladder.

Question 46

The cerebellum coordinates heartbeat,blood circulation,and respiration.

Question 47

Lesions to some areas of the hypothalamus result in a loss of interest in food.

Question 48

Electrically stimulating a certain region of the hypothalamus produces feelings of intense pleasure.

Question 49

A human cannot survive with only a functional hindbrain and midbrain.

Question 50

The parasympathetic nervous system is responsible for ejaculation in males.

Question 51

The thalamus regulates hunger,thirst,and sexual behavior.

Question 52

The pain withdrawal reflex occurs without any input from the brain.

Question 53

One of the functions of the sympathetic nervous system is to dilate the pupils.

Question 54

The tectum and tegmentum are midbrain structures involved in the recognition of facial emotions.

Question 55

If you ever find yourself being chased by a crazed axe murderer,your parasympathetic nervous system will trigger an increase in heart rate and provide your muscles with more oxygen such that you can run faster and longer.

Question 56

The spinal cord is continuous with the hindbrain.

Question 57

The hypothalamus relays information from the senses to the cerebral cortex.

Question 58

Severing the connections between the reticular formation and the rest of the brain may result in an irreversible coma.

Question 59

The medulla is referred to as the "little brain" because it is extremely vital to basic life functions.

Question 60

Damage higher on the spinal cord usually results in more severe impairment.

Question 61

The activity of the pituitary gland is directed by the thalamus.

Question 62

During prenatal development,the forebrain develops before the hindbrain.

Question 63

Mirror neurons are located in association areas in the occipital lobe of the brain.

Question 64

Damage to the occipital lobe can result in partial or complete blindness without any damage to the eyes.

Question 65

The frontal lobe processes auditory information into meaningful units.

Question 66

Thinking,planning,and anticipating are activities associated with the frontal lobe.

Question 67

The amygdala is involved in attaching emotional significance to events.

Question 68

The temporal lobe contains the somatosensory cortex.

Question 69

The motor cortex is situated directly behind the somatosensory cortex.

Question 70

During prenatal development,the tail end of the neural tube will develop into the spinal cord.

Question 71

If you lose a finger in an accident,the area in the somatosensory cortex corresponding with that finger will become nonfunctional.

Question 72

The activation of mirror neurons appears to help us to recognize the goal-directed behaviors of others.

Question 73

The striatum is a part of the basal ganglia involved in movement.

Question 74

The cerebral cortex,with its characteristic fissures,does not develop until the middle of pregnancy.

Question 75

The hippocampus is critical for the formation of new memories.

Question 76

Plasticity refers to cortex adaptation to changes in sensory inputs.

Question 77

The activation of mirror neurons is vital in allowing us to learn how to imitate the subtle muscle movements of a complex motor skill.

Question 78

The corpus callosum enables communication between the left and right brain hemispheres.

Question 79

If you continually practice a skill involving precise and coordinated movements of the fingers,the areas associated with your fingers in the sensory and motor cortices will increase in size and/or function.

Question 80

The frontal lobe contains the motor cortex.