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Biological Functions & The Mind and Consciousness
Psychology 150 Exam 2 Notecards
17
Psychology
Undergraduate 1
03/03/2011

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Term
Nervous System
Definition
Electrochemical communication network that connects the brain and spinal cord to all sensory organs, muscles and glands
Term
Afferent Neurons (Sensory)
Definition
Carry messages to spinal cord and the brain
Term
Efferent Neurons (Motor)
Definition
Carry messages and commands to muscles, glands and organs
Term
Interneurons
Definition
Connect and transfer info from one neuron to another
Term
Myelin sheath
Definition
insulate and increase the speed of transmission for neurons
Term
Acetylcholine
Definition
muscle movement and cognition (memory, learning, sleeping, etc.)
Term
Dopamine
Definition
muscle and mental disorders
Term
Serotonin
Definition
Sleeping, eating, mood, pain and depression
Term
GABA (Gamma aminobutyric acid)
Definition
inhibitory effect to regulate muscle activities
Term
Endorphins
Definition
pain suppression, pleasure and appetites
Term
Endorphins
Definition
pain suppression, pleasure and appetites
Term
Medulla
Definition
Part of the hindbrain

Regulates involuntary functions (breathing)
Term
Pons & Reticular formation
Definition
Part of the hindbrain

Regulate 4 cycles of sleep stages and arousal
Term
Cerebellum
Definition
Part of the hindbrain

Coordinates complex motor movements, balance, aid in learning & memory
Term
Tectum
Definition
Part of the midbrain

Integrates motor and sensory info from eyes & ears
Term
Substantia nigra
Definition
Part of the midbrain

Dopamine path (deteriorate in people with Parkinson's)
Term
Limbic System
Definition
Part of the forebrain

thalamus, hypothalamus, hippocampus, amygdala, pituitary gland

Regulates motivation, emotions, memory & 4Fs (fighting, fleeing, fighting, and mating)
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