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Chapter 2
Functions of the brain
25
Psychology
11th Grade
09/29/2010

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Term
Thalamus
Definition
The switch board of the Brain and sends messages down brainstem.
Term
Automatic Nervous System
Definition
Part of the peripheral nervous system that controls glands and muscles of the organs.
Term
Sympathetic Nervous System
Definition
A division of the Autonomic Nervous system that energizes when body is stressed. More less body works itself up because of arousal.
Term
Parasympathetic Nervous system
Definition
Other division of the Autonomic Nervous system that calms the body down after arousal.
Term
Nerves
Definition
Connects the body to the nervous system
Term
Endorphins
Definition
Nuerotransmitters that control pain and pleasure
Term
Acetylcholine
Definition
Nuerotransmitter that causes muscle movement.
Term
Threshold
Definition
Expectation that is required in order to have a reaction from a nueron
Term
Action potential
Definition
The energy that is in a chemical form that is transfered to one end from a nueron to the next.
Term
Aphasia
Definition
Disordered by blows that impair language, understanding or speaking.
Term
Broca's Area
Definition
Area of frontal lobe that directs muscle movement and Speech.
Term
Wernicke's Area
Definition
Part of the brain that controls language and expression
Term
Corpus Callosum
Definition
Cluster of nueral fibers that sends messages between the two hemispheres
Term
Cerebral Cortex
Definition
Fabric that covers the hemispheres. Body's main control and processes information. "big baws"
Term
Glial Cells
Definition
Cells in the nervous system that nourishes and protects nuerons.
Term
Motor Cortex
Definition
Diffrent than the motor nuerons. Part of the cerebral cortex that covers the frontal lobes and allows you to perform movement.
Term
Sensory Cortex
Definition
Not the sensory nuerons. Part of the cerebral cortex and registers and processes body sensations. Near the parietal lobes.
Term
Motor Nuerons
Definition
Nuerons that produce funtions from brain to the muscles. Allow movement
Term
Sensory Nuerons
Definition
Nuerons that are connected to the rest of the body and alows you to feel or sense.
Term
Hormones
Definition
Chemical messages that are sent else where and not used where they are made.
Term
Amygale
Definition
Linked to emotion. Specifically agression and anger
Term
Hypothalamus
Definition
Maintains eating, drinking, body temp, and emotion also.
Term
Association Area
Definition
Are of the brain that controls learning, remebering, thinking and speaking.
Term
Reticular Formation
Definition
Nerve network in brain that controls arousal
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