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42 terms

Psych Test Unit 3 answers

Mr. Mac's Class
STUDY
PLAY
the cells od the nervous system that do the work of receiving, integrating, and transmitting information are the
neurons
the correct order that information passes through in a neuron is
dendrite, soma, axon
the main function of dendrites is to
receive information
terminal buttons are located
at the end of axons
the chemicals that are secreted from the terminal buttons into the synapse are
neurotransmitters
the cells that provide structural support and insulation for neurons are called
glia
cells found in the nervous system that insulate, nourish, and direct the growth of neurons as well as remove dead neurons and waste products are known as
glia
the stable, negative charge of a neuron when it is inactive is called
resting potential
neurotransmitters are secreted from the ________ across the synapse to the dendrites
neuromodulators
an action potential is
an electrical signal that travels along the axon of a neuron
according to the __________ law, a neuron fires an action potential at only one level of intensity
all-or-none
an impulse moves from one neuron to another through the action of
neurotransmitters
synaptic vesicles are structures that
store neurotransmitters
what event causes the release of neurotransmitters into the synaptic cleft?
the arrival of the action potential at the terminal buttons
Reabsorption of neurotransmitters into the presynaptic neuron is referred to as
reuptake
an agonist
mimics the action of the neurotransmitter
an antagonist
blocks the action of the neurotransmitter
abnormalities at norepinephrine and serotonin synapses appear to play a role in...
psychological disorders
the neurotransmitter released by motor neurons that results in movement of the voluntary muscles is
acetycholine
nerves ouside the skull and spine comprise the
peripheral nervous system
the somatic nervous system and the autonomic nervous system comprise the
skeletal
______ nerves receive information, while _______ nerves carry out instructions
afferent; efferent
the _____ nervous system mobilize the body when one needs to exert tremendous energy (such as flee from an attacker)
sympathetic
the ______ is most likely to be in control of bodily processes during periods of rest and recovery for the body
parasympathetic nervous system
efferent nerve fibers transmit messages _____ the brain and spinal cord
away from
the heart, glands, and smooth muscles are controlled by the
autonomic nervous system
the "flight or flight" response is a direct result of activation of the
sympathetic nervous system
the structure that connects the two cerebral hemispheres is the
corpus callosum
in which of the lobes od the cerebrum is the somatosensory cortex located?
parietal
theodore suffered a stroke recently, and now he finds that he constantly hears a buzzing sound in his ears. IN this case, it is likely that the stroke occurred in theodore's
temporal lobe
the primary visual cortex is located in the
occipital lobe
the primary motor cortex is located in the
frontal lobe
which of the following statements concerning plasticity in the brain is FALSE?
older brains show more plasticity than younger brains
the area of frontal lobe that plays an important role in the production of speech is called
broca's area
for most people, the production of language resides in the
left cerebral hemisphere
surgically disconnecting the cerebral hemispheres has its origina in the treatment of
epilepsy
if the left hemisphere of the brain were damaged, which part of the body would be MOST directly affected?
the right half
because the speech center is generally located in the left hemisphere of the brain, a split-brain patient is unable to describe the stimuli that are
seen in the left visual field
the brain structure involved in the comprehension of speech is
wernicke's area
which of the following parts of the brain is MOST likely to play a major role in the work of artists, architects, and engineers, who must rely heavily on visual-spatial skills?
the right hemisphere
which of the following is determined at the conception and is fixed forever?
genotype
sally has blue eyes and blond hair. genetically, this description refers to Sally's
phenotype