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AP Psychology Unit 2:The Biological Bases of Behavior
(Modules 4-7)
The Nervous and Endocrine Systems(Module 4)
Objectives:• Describe the nervous systems and its
subdivisions and functions• Discuss the effect of the endocrine
system on behavior
The Nervous System
The Nervous System
The Nervous System
The Nervous System
The Nervous System
The Nervous System
The Nervous System
The Autonomic Nervous System
Fight-or-flight response
Sympathetic: Arouses Parasympathetic:
Calms
Central Nervous System (CNS)
Brain– Enables all functioning– Billions of neurons and their connections– These neurons work together in neural networks to facilitate
efficient output.– As we learn, these networks strengthen
Spinal Cord– Connects brain to PNS– Handles reflexes
Central Nervous System
Brain Spinal Cord
The Endocrine System
Helps coordinate and integrate complex psychological reactions
Endocrine glands secrete hormones into the bloodstream
Hormones serve to organize the nervous system and body
Hormones also activate behavior, such as sexual behavior, hunger and aggression
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