Term
| when a neuron fires and anction potential, the information travles through the axon, the dendrites, and the axons terminal branches but not in that order. place these three in the correct order |
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Definition
| detrites, axon, axon terminal branches |
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Term
| how does the nervous system alloq us to experience the difference between a slap and a tap on the back? |
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Definition
| stronger stimuli (slap) cause more neurons to fire and to fire more frequently than with weaker stimuli (tap) |
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Term
| what happens in the synaptic gap? |
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Definition
| neurons send neurotransmitters (chemical messangers) across this tiny space between one neurons terminal branch and the next neurons dendrite or cell body |
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Term
| the endorphins, serotonin, and dopamine are all chemical messengers called ____ |
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Definition
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Term
| why is the pitutiary gland called the master gland? |
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Definition
1- responds to signals from the hipthalmus
2-releases hormones that trigger other endocrine glands to secrete hormones which inturn influence our brain and our behaviors. |
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Term
| how are the neurvous and endocrine systems different/similar |
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Definition
both produce chemical milecules that act on the bodys receptors to influence behavior/emotion
enocrine: secretes hormones into bloodstream, delivers its messages slowly vs nervous system and the effects of the endocrine system messages ten to be much longer |
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Term
| the neuron fiber that passes messages through its branches to other neurons or to muscles and glands is the |
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Definition
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Term
| the tiny space between the azon and one neuron and the dendrite or cell body of another is called the |
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Definition
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Term
| regarding a neurons response to stimulation, the intensity of the stimulus determines... |
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Definition
a. whether or not an impulse is generated
b. how fast an impulse is transmitted
c. how intense an impluse will be
d. whether reuptake will occur
answer a |
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Term
| in a sending neuron, when an action potential reaches an azon terminal, the impulse triggers the release of chemical messangers called |
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Definition
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Term
| endrophins are released in the brain in response to |
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Definition
a. morhine or heroin
b. pain/vigorus excercise
c.all or none response
d. all the above
answer:b |
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Term
the autonomic nervous system controls internal functions such as heart rate and glanular activity. the word autonomic means
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Definition
a. calming
b. voulantary
c. self-regulating
d. arousing
answer: c |
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Term
| the sympathetic nervous system arouses us for action and the parasympatheric nervous system calms us down. together, the two systems make up the _____ nervous system |
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Definition
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Term
| the neurons of the spinal chord are part of the ____ nervous system |
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Definition
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Term
the most influential endocrine gland, known as the master gland is the..
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Definition
a. pituitary
b. hypothalmus
c. thyroid
d. pancreas
answer a |
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Term
| the _____ _____ secrete epinephrine and norepinephrine helping aroud the body during times of stress |
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Definition
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