psych ch 3
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Nerve cells specialized for communication
neurons differ from other cells b/c
because they have branches that receive information from other neurons.
the recieving parts of neurons are called
recieve signals and are a tree like features on the neurons
and they pass information from neurons to the cell body
the cell body is also known as the.....
the cell body contains...
energy for the cell to remain alive
the cell body is also responisble for.....
getting information form the dendrite and passing it down to the axon
and are located by
extentions responsible for sending msgs.
and are located by the cell body
axon terminals contain....
synaptic vesicles travel down the terminal and release neurotransmitters
__________ cells are the supporting roles
protect the cell
responds to injury and cleans debris
gial cells form a _________ that blocks highly charged cells from entering the brain
when a neuron is at resting state.....
the negative charges remain higher than the outside neurons. this is called resting potential
______ is an electricial impulse that travels down the axon and allows neruons to communicate
neurons contain and are sourrounded by ___. which are positevly prouduced with_______
substances that dissolve in water
ions outiside the cell are.....
are positevly charged with sodium
ions inside the cell are.....
negativly charged with protien and negativly chargewd with potassium
the nervous stsyem is a_____ for information
the the central nervous system contains_____ _______
the brain and the spinal cord
the peripherial nervous ststem controls_____
the automatic nervous system helps us_________
experience and express emotions and is invoulentary
what sensory system helps us experience and express emotions?
the sutomatic nervous system
our brains signal the movement for walking touch etc. but our ______ exicutes them all
somatic sensory system
the parasympathetic system maintains__________
Frontal lobe contains and is responsible for
Contains the motor cortex
Responsible for motor function language and memory
pre frontal cortext
Responsible for thinking planning and too.
the parial lobe
specializes in touch and perception
the lymbic system is the _______ center
emotional center and also plays a role in smell motivation and memory
the hypthalamus is responsible for
maintaining a constant internal state< ie regulates body tempurature.
an expample of what the hypothalamus does
will cause the body to sweat if you are hot.
the amygdala is responsible for
fear and excitement and arousal
the cingulated cortext becomes active when we_______ and also contributes to______
express our emotions.
the _____ gland is the master gland
the pituitary gland regulates _______
other glands by letting off hormones that trigger other hormones to work ie. growth hormones.
gial cells ____ neurons together
neurons are powered by
what is the myelin sheath?
a series of cells that blocks ion movements. it helps the sysyem go from node to node
stimulates muscel contractions
gives us smoothe movements
too little of dopamine =
too much =
dopamine is found around ______
norepine is associated with
stress and attention
gamma a acid is
serotonin is associated with
meomory, learning and mood
lobes of the brain: the frontal lobe is responsible for
functions and helps us choose b/w whats right and wrong. helps us see similarites and takes care of us
what part of the brain is most developed?
relay station for the sensory information collects everything except fot smell
psych ch 3