3A

Wheel entries:

• Action potential
• Adrenal glands
• Autonomic NS
• Axon
• Biological psych
• Central NS
• Dendrite
• Endocrine
• Endorphins
• Hormones
• Interneurons
• Motor neurons
• Myelin sheath
• Nerves
• Nervous system
• Neuron
• Neurotransmitters
• Parasympathetic NS
• Peripheral NS
• Pituitary gland
• Reflex
• Reuptake
• Sensory neurons
• Somatic NS
• Sympathetic NS
• Synapse
• Threshold