Unit 2 Flashcards
To monitor electrical activity that is triggered when one hears their own name, researchers would make use of what ?
An EEG
In order to experience the pain of a sprained ankle, _____ must first relay messages from your ankle to your central nervous system.
sensory neurons
A drug that blocks the re-uptake of a particular neurotransmitter is called a(n)
antagonist
Increasing excitatory signals above the threshold for neural activation will not affect the intensity of the action potential. This indicates that the neuron’s reaction is
an all-or-nothing response
The somatic nervous system is a component of the ______ nervous system.
peripheral
When ACh is blocked, the result is
muscular paralysis
Depolarization of the neural membrane can create a(n)
action potential
Mr. Smith thought his daughter had fallen down the stairs. His rate accelerated, blood pressure rose and he began to perspire heavily. His state of arousal was activated by his _____nervous system.
sympathetic
Drugs that block the reuptake of serotonin will thereby increase the concentration of the molecules in the
synaptic gaps
The minimum level of stimulation required to trigger a neural impulse is called the
threshold
The limbic system structure that regulates hunger is called the
hypothalamus
The successful functioning of children who have experienced surgical removal of an entire cerebral hemisphere best illustrates the value of
plasticity
Though there is no single control center for emotions, their regulation is primarily attributed to the brain region known as
limbic system
Which region of the brain appears to have its oldest evolutionary history?
brainstem
In the brain, I outnumber neurons. I also provide nutrients and help remove excess neurotransmitters I am a
glial cell
Which of the following is typically controlled by the right hemisphere?
emotion
Information is most quickly transmitted from one cerebral hemisphere to the other by the
corpus callosum
In order to pinpoint the location of a tumor, the neurosurgeon electrically stimulated parts of the patient’s sensory cortex. If the patient was conscious, which of the following was probably experienced?
a sense of having the skin touched
Jessica experienced difficulty keeping her balance after receiving a blow to the back of the head. It is likely that she injured her
cerebellum
The association areas are located in the
cerebral cortex
which term happens along side action potential
depolarized
when the cell is at rest, it is;
polarized
anti-depressants block the WHAT of serotonin
reuptake
the cell fires when there is more excitatory than inhibitory signals (true or false)
true
sodium and potassium are the ions that move through the tiny gates (true or false)
True
the movement of ions inside and outside the tiny gates is called
action potential
during action potential, the cell is
depolarized
when the neurotransmitter is released it is then sucked back up again, this is called what
reuptake
each neurotransmitter has a unique chemical code and that code fits like a lock and key in the receiving dendrite (true and false)
True
The first part of the cell that receives the message is the axon
False
What is the medulla’s function
heartbeat and breathing
what is reticular formation’s function
controls the arousal (focus) and attention + alertness
what happens when the reticular formation is damaged
results in a coma
what does the thalamus control
the sensory signals to other parts of brain. NOT SMELL THO!!!! (switchboard)
what is the function of the cerebellum
coordinates muscle movement and balance.
what is the limbic system
4 structures that make up emotional center
what is the function of hypothalmus
controls; sleep, eating, drinking, pleasure, emotions, and body TEMP.
What is amygdala functions
TOXIC emotions; anger, fear, jealously.
what is the hippocampus function
involved with memory; memories and emotions are linked.
what is the corpus callosum function
bridge between two hemisphere; lets the communicate
what does aphasia mean
means an impairment of language
what does broca’s area mean
speak with tongue, (be broca his tongue and cannot speak)
what does wenicke’s do/mean
allows you to understand what others are saying.
what does angular Gurus mean/allow
allows to read in your head
what are the four areas for language specialization ??
Aphasia, Broca’s area, Wenicke’s, and Angular Gurus.
what is the function of the frontal lobe
controls abstract thoughts, personality, and emotional control+planning. (Maturity Level)
what is the function of the parietal lobe
touch sensations EX, Sunburn.
what hemisphere of brain is the areas for language specialization
LEFT
what is the function of temporal lobe
Sound
what is the occipital lobes function
vision; turns messages from eyes into images.
what is plasticity
the brains ability to modify itself.
what is the functions involved with the left hemisphere of the brain.
logic, sequential, analytical, detailed, and language tasks.
what is the functions involved with the right hemisphere of the brain
perception, spatial (space) awareness, creativity, intuition, emotions, facial recognition.
what does touching the motor cortex do
touching this area will create movement
what happens when you touch the sensory cortex in the brain
if touched then you will sense it.
what is brain laterization
a process that is specific to a side of the brain (ex. language=left.
is the endocrine system slow or fast
SLOW
what is the master gland of endocrine system
master gland.
