Psychology - Chapter 3 Quiz

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________ is the electrical signal that typically moves from the cell body down the axon to the axon terminals.

action potential

Which of the following senses is associated with the temporal lobe?

audition

Which structure is covered by a fatty layer of insulation?

axon

The brain contains ________ of interconnected neurons and glia.

billions

Psychological researchers study genetics in order to better understand the ________ that contributes to certain behaviors.

biology

The two major divisions of the nervous system are the ________ and ________.

central; peripheral nervous systems

A ________ scan involves taking a number of x-rays of a particular section of a person's body or brain.

computerized tomography (CT) scan

Which structure connects the right and left hemispheres of the brain?

corpus collosum

Selective serotonin reuptake inhibitors (SSRIs) are drugs commonly prescribed for ________.

depression

________ is a neurotransmitter that may be linked to schizophrenia.

dopamine

The endocrine system consists of a series of glands that produce chemical substances known as ________.

hormones

In a resting state, sodium (Na+) is at a higher concentration outside the cell and potassium (K+) is more concentrated inside the cell. During an action potential, the sodium levels ________ inside the cell.

increase

Once a neurotransmitter has done its job it is pulled back into the terminal buttons. This process is termed:

reuptake

Sensory and motor neurons of the ________ nervous system are associated with activities traditionally thought of as conscious or voluntary.

somatic

The central nervous system consists of the brain and the ________.

spinal cord

The ________ nervous system is responsible for responses such as pupil dilation, increased heart rate, and increased respiration.

sympathetic

The space between two neurons is called the ________.

synapse

The ________ of a neuron contain ________ that house neurotransmitters, the chemical messengers of the nervous system.

terminal buttons; synaptic vesicles

Which brain lobe controls one's sense of vision?

occipital

Phineas Gage suffered damage to his frontal lobe. This ultimately resulted in changes in his:

personality


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