Module 3 Flashcards
Axon
Passes messages
Dendrite
Receive messages from other cells
Myelin sheath
Helps speed neural impulses
Multiple sclerosis is due to degeneration of myelin sheath
Glial cells
“Worker bees”
Provide nutrients
Synapse
Cell junction
Serotonin
Affects mood, hunger, sleep, and arousal
Dopamine
Influences movement, learning, attention, emotion
Acetylcholine
Enables muscle action and memory
Norepinephrine
Helps control alertness and arousal
Glutamate
Excitatory neurotransmitter/ memory
Central nervous system
Brain and spinal cord
Peripheral nervous system
Everything else
Autonomic nervous system
Controls involuntary movement
Somatic nervous system
Controls voluntary movement
Sympathetic nervous system
Arousing
Parasympathetic nervous system
Calming