bell ringer – which of your unit 2 vocab words are depicted below? explain how each pic. relates...
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The Nervous System Will Explain Why We FEEL… Pain Strong NervousTRANSCRIPT
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Bell Ringer – Which of your Unit 2 Vocab words are depicted below? Explain how each pic. relates to the word.
1. 2.
3. 4.
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The Nervous SystemUnit II: Biology and Behavior
-What is it?-How does it affect our behavior?
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The Nervous SystemWill Explain Why We FEEL…
Pain Strong Nervous
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The Nervous System is …
A big communication system between the brain and the body.
Controls body movement & senses
Helps us to gain information that is going on inside and
around our body Respond accordingly
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Neural Transmission - Perceive a stimulus, select a response, execute response
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Bell-Ringer1. What symptoms might be displayed
if you had a problem/disorder of the Nervous System? Be as specific as possible.
2. Briefly describe a situation when you were really startled or scared. Include how your body felt in this situation. What involuntary reactions did your body have to this scary situation?
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The Nervous System is …
Made up of nerves – strings of long thin cells called neurons.
Nerves send messages between the brain and the body.
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The Nervous System is …
Neurons – fundamental unit of the nervous system
nerve cellhave the ability to communicate with
one another
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Neuron Structure
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The Nervous System is …
Two Parts 1. Central Nervous
System (CNS)brain and spinal
cord – encased in bone
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The Nervous System is…
2. Peripheral Nervous System (PNS)Nerves & Neurons Connects the CNS
to the body Carries
information to and from the brain
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A “blueprint” of the Nervous System
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How it affects our behaviors…Sympathetic Nervous System Flight or Fight ResponsePrepares our body to confront the situation or RUN!
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How it affects our behaviors…Sympathetic VS. Parasympathetic
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How it affects our behaviors …
neurotransmitters – chemicals released by neurons which help them pass messages.
Three important neurotransmitters have a big influence on our feelings and behavior.
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SerotoninFunction deals with mood control.
Lack of serotonin has been linked to depression.
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DopamineIts function is motor movement
and alertness.
Lack of dopamine is associated with Parkinson’s disease.Overabundance is associated with schizophrenia.
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EndorphinsFunction deals with pain control.Can give a euphoric feeling
We become addicted to endorphin causing feelings.
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Build Your Own Neuron! Working in pairs, you are to build a neuron model using the provided bag of supplies. Label all 6 parts from the list below.
Identify on your base paper the functions of all 6 parts.
Dendrites Cell body Axon Myelin sheath Axon terminals Neurotransmitters
Label each part 2pts. (x6) = 12 Identify each function 3pts. (x6) = 18 Construction/Correct placement =15
Neatness 15
Total pts. 60