Neurons and the Nervous System
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16 Terms
Sensory Neuron
Connects Sensory Organs to Central Nervous System
Motor Neuron
Connects CNS to muscles and glands
Inter neuron
Neurons of the Brain and spinal cods, processes info between motor and sensory
Action potential
A neuron that is firing
resting potential
a neuron that is not currently firing
All-or-None principle
A neuron is either currently firing or not firing
Refractory period
The time in which a neuron cannot fire again
Reuptake
Neurotransmitters are taken back into synaptic vesicles
Central Nervous System
Control Center of Processing Info
Peripheral Nervous System
Transmits sensory info to CNS
Somatic Nervous System
Connects CNS to body’s skeletal muscles and organs
Autonomic Nervous System
Controls involuntary muscles and glands
Sympathetic Division
Fight or Flight response, mobilize energy is stress situations
Parasympathetic Division
Calms the body, and conserves body
multiple sclerosis
chronic disease of the central nervous system marked by damage to the myelin sheath
myasthenia gravis
chronic autoimmune disease that affects the neuromuscular junction and produces serious weakness of voluntary muscles
Note 
Flashcards (23)