Nervous system concepts overview v12 pt 2
Post on 14-Jan-2015
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Your senses
What are they, what do they do?
state (on, off)range
Receptor
state (on, off)range
ReceptorStimulus
3 sensitive to
Energy
convert4
state (on, off)range
ReceptorStimulus
3 sensitive to
Energy
Heat
Light
Sound
Chemical
Movement
Electrical
convert4
state (on, off)range
ReceptorStimulus
Light
Change in Temperature
Touch
Change in Position
Pressure
Chemical
Sound
3 sensitive to
Energy
Heat
Light
Sound
Chemical
Movement
Electrical
convert4
state (on, off)range
ReceptorStimulus
Light
Change in Temperature
Touch
Change in Position
Pressure
Chemical
Sound
3 sensitive to
Energy
Balance
Taste
Smell
Light
Touch
Pressure
Sound
Temperature
Hot Cold
Heat
Light
Sound
Chemical
Movement
Pain
Electrical
convert4
state (on, off)range
ReceptorStimulus
Light
Change in Temperature
Touch
Change in Position
Pressure
Chemical
Sound
3 sensitive to
Energy
Balance
Taste
Smell
Light
Touch
Pressure
Sound
Temperature
Hot Cold
3 detect
3 detect
Heat
Light
Sound
Chemical
Movement
Pain3 detect?
Electrical
convert4
state (on, off)range
ReceptorStimulus
Light
Change in Temperature
Touch
Change in Position
Pressure
Chemical
Sound
3 sensitive to
Energy
Balance
Taste
Smell
Light
Touch
Pressure
Sound
Temperature
Hot Cold
3 detect
3 detect
Heat
Light
Sound
Chemical
Movement
Pain3 detect?
Electrical
Output
Input
convert4
Key Diagram
Control and Co-ordination
Control andCoordination
Control andCoordination
MessageSystem
2
happens via4
Control andCoordination
MessageSystem
NervousSystem
EndocrineSystem
2
happens via4
Control andCoordination
MessageSystem
NervousSystem
EndocrineSystem
Situation
2
happens via4
1..*
reacts to4
Control andCoordination
MessageSystem
NervousSystem
EndocrineSystem
Situation
2
happens via4
1..*
reacts to4
Process
1..*
has associated4
Control andCoordination
MessageSystem
NervousSystem
EndocrineSystem
Situation
2
happens via4
1..*
reacts to4
External
Internal
Process
1..*
has associated4 Chain ofEvents
{incomplete}
Key Diagram
Situation
• A slug in your sandwich
• A bee sting
• A lion jumping out in front of you
• Hunger
• A hot pan
Nervous System
Central NervousSystem (CNS)
Nerve Receptor Effector
Nervous System
Central NervousSystem (CNS)
Nerve Receptor Effector
Brain Spinal Cord
Nervous System
Central NervousSystem (CNS)
Nerve Receptor Effector
Brain Spinal Cord
Neurone Synapse
MotorNeurone
SensoryNeurone
Nervous System
Central NervousSystem (CNS)
Nerve Receptor Effector
Brain Spinal Cord
Neurone Synapse
MotorNeurone
SensoryNeurone
SenseOrgan
carries messages from4
found in4
Nervous System
Central NervousSystem (CNS)
Nerve Receptor Effector
Brain Spinal Cord
Neurone Synapse
MotorNeurone
SensoryNeurone
SenseOrgan
Muscle
Gland
carries messages from4
found in4
carries messages to4
Nervous System
Central NervousSystem (CNS)
Nerve Receptor Effector
Brain Spinal Cord
Neurone Synapse
MotorNeurone
SensoryNeurone
SenseOrgan
Muscle
Gland3 connect
carries messages from4
found in4
carries messages to4
Nervous System
Central NervousSystem (CNS)
Nerve Receptor Effector
Brain Spinal Cord
Neurone Synapse
MotorNeurone
SensoryNeurone
SenseOrgan
Muscle
Gland3 connect
carries messages from4
found in4
carries messages to4
RelayNeurone
3 only found in
Nervous System
Central NervousSystem (CNS)
Nerve Receptor Effector
Brain Spinal Cord
Neurone Synapse
MotorNeurone
SensoryNeurone
SenseOrgan
Muscle
Gland3 connect
carries messages from4
found in4
carries messages to4
RelayNeurone
3 only found in
ActionBodyPart
3 controls coordinates4
Key Diagram
Getting Co-ordinated
• Star experiment – draw around the star using only a mirror reflection
Nervous System
Central NervousSystem (CNS)
Nerve Receptor Effector
http://www.bbc.co.uk/schools/gcsebitesize/science/edexcel/electrical/thenervoussystemrev4.shtml
NERVOUS SYSTEM - Reflex Arc for Bee Sting
sting finger
detect sting
fire electricalimpulse
transmitimpulse
relay impulse tomotor neurone
transmitimpulse
contract armmuscles
External Stimulus(Bee)
Effector(Muscle)
MotorNeurone
Relay Neurone
SensoryNeurone
Receptor(Pain)
Response
contract armmuscles
NERVOUS SYSTEM - Reflex Arc for Bee Sting
sting finger
detect sting
fire electricalimpulse
transmitimpulse
relay impulse tomotor neurone
transmitimpulse
contract armmuscles
External Stimulus(Bee)
Effector(Muscle)
MotorNeurone
Relay Neurone
SensoryNeurone
Receptor(Pain)
Response
contract armmuscles
NERVOUS SYSTEM - Reflex Arc for Bee Sting
sting finger
detect sting
fire electricalimpulse
transmitimpulse
relay impulse tomotor neurone
transmitimpulse
contract armmuscles
External Stimulus(Bee)
Effector(Muscle)
MotorNeurone
Relay Neurone
SensoryNeurone
Receptor(Pain)
Response
contract armmuscles
NERVOUS SYSTEM - Reflex Arc for Bee Sting
sting finger
detect sting
fire electricalimpulse
transmitimpulse
relay impulse tomotor neurone
transmitimpulse
contract armmuscles
External Stimulus(Bee)
Effector(Muscle)
MotorNeurone
Relay Neurone
SensoryNeurone
Receptor(Pain)
Response
contract armmuscles
NERVOUS SYSTEM - Reflex Arc for Bee Sting
sting finger
detect sting
fire electricalimpulse
transmitimpulse
relay impulse tomotor neurone
transmitimpulse
contract armmuscles
External Stimulus(Bee)
Effector(Muscle)
MotorNeurone
Relay Neurone
SensoryNeurone
Receptor(Pain)
Response
contract armmuscles
NERVOUS SYSTEM - Reflex Arc for Bee Sting
sting finger
detect sting
fire electricalimpulse
transmitimpulse
relay impulse tomotor neurone
transmitimpulse
contract armmuscles
External Stimulus(Bee)
Effector(Muscle)
MotorNeurone
Relay Neurone
SensoryNeurone
Receptor(Pain)
Response
contract armmuscles
NERVOUS SYSTEM - Reflex Arc for Bee Sting
sting finger
detect sting
fire electricalimpulse
transmitimpulse
relay impulse tomotor neurone
transmitimpulse
contract armmuscles
External Stimulus(Bee)
Effector(Muscle)
MotorNeurone
Relay Neurone
SensoryNeurone
Receptor(Pain)
Response
contract armmuscles
NERVOUS SYSTEM - Reflex Arc for Bee Sting
sting finger
detect sting
fire electricalimpulse
transmitimpulse
relay impulse tomotor neurone
transmitimpulse
contract armmuscles
External Stimulus(Bee)
Effector(Muscle)
MotorNeurone
Relay Neurone
SensoryNeurone
Receptor(Pain)
Response
contract armmuscles
Key Diagram
Effector
Central Nervous System
Receptor
Nerve
detect stimulus
send impulse
process impulse
transmit impulse
interpret impulse
receive impulse
respond
Nervous SystemRequirements View
Receptor
detect stimulus
send impulse
Nervous SystemRequirements View
Effector
Receptor
detect stimulus
send impulse
receive impulse
respond
Nervous SystemRequirements View
Effector
Central Nervous System
Receptor
detect stimulus
send impulse
receive impulse
respond
Nervous SystemRequirements View
Effector
Central Nervous System
Receptor
Nerve
detect stimulus
send impulse
transmit impulse
receive impulse
respond
Nervous SystemRequirements View
Effector
Central Nervous System
Receptor
Nerve
detect stimulus
send impulse
process impulse
transmit impulse
interpret impulse
receive impulse
respond
Nervous SystemRequirements View
Effector
Central Nervous System
Receptor
Nerve
detect stimulus
send impulse
process impulse
transmit impulse
interpret impulse
receive impulse
respond
Nervous SystemRequirements View
Effector
Central Nervous System
Receptor
Nerve
detect stimulus
send impulse
process impulse
transmit impulse
interpret impulse
receive impulse
respond
Nervous SystemRequirements View
Effector
Central Nervous System
Receptor
Nerve
detect stimulus
send impulse
process impulse
transmit impulse
interpret impulse
receive impulse
respond
Nervous SystemRequirements View
Effector
Central Nervous System
Receptor
Nerve
detect stimulus
send impulse
process impulse
transmit impulse
interpret impulse
receive impulse
respond
Nervous SystemRequirements ViewKey Diagram
Control andCoordination
MessageSystem
NervousSystem
EndocrineSystem
Situation
2
happens via4
1..*
reacts to4
External
Internal
Process
1..*
has associated4 Chain ofEvents
Key Diagram
Nervous System
Central NervousSystem (CNS)
Nerve Receptor Effector
Brain Spinal Cord
Neurone Synapse
MotorNeurone
SensoryNeurone
SenseOrgan
Muscle
Gland3 connect
carries messages from4
found in4
carries messages to4
RelayNeurone
Key Diagram
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