This neurotransmitter is important in initiating voluntary muscle movement.

A. Serotonin
B. Dopamine
C. Glutamate
D. Acetylcholine

D. Acetylcholine

Damage to this area of the brain results in a difficult with speaking words.

A. Angular gyrus
B. Gage's area
C. Wernicke's area
D. Broca's area

D. Broca's area

The localization of a function - such as speech production - to the right or left side of the brain is called _____.

A. plasticity
B. lateralization
C. neurogenesis
D. hemispherectomy

B. lateralization

The "sensory cortex" is most critical for our sense of _____.

A. touch
B. sight
C. hearing
D. smell

A. touch

The longest part of a a neuron carrying messages to a leg muscle is likely to be the _____.

A. cell body
B. axon
C. dendrite
D. synapse

B. axon

After discovering that the shadows outside his window were only the trees in the yard, Ralph's blood pressure decrased and his heartbeat slowed. These physical reactions were most directly regulated by his _____.

A. parasympathetic nervous system
B. hippocampus
C. somatic nervous system
D. sympathetic nervous system

A. parasympathetic nervous system

Reuptake refers to the _____.

A. movement of neurotransmitter molecules across a synaptic gap
B. inflow of myelin through an axon membrane
C. reabsorption of excess neurotransmitter molecules by a sending neuron
D. release of hormones into the bloodstream

C. reabsorption of excess neurotransmitter molecules by a sending neuron

An amplified recording of the waves of electrical activity that sweep across the surface of the brain is called a(n) _____.

A. MRI
B. PET scan
C. fMRI
D. EEG

D. EEG

A synapse is a(n) _____.

A. neural "cable" containing many axons
B. junction between a sending neuron and a receiving neuron
C. chemical messenger that triggers muscle contractions
D. automatic response to sensory input

B. junction between a sending neuron and a receiving neuron

An undersupply of serotonin is most closely linked to _____.

A. Parkinson's disease
B. depression
C. Alzheimer's disease
D. schizophrenia

B. depression