biological psychologistsneurondendritesaxonmyelin sheathaction potentialrefractory periodthresholdall-or-nothing responsesynapseneurotransmittersreuptakeendorphinsAgonistAntagonistsnervous systemCentral nervous system (CNS)Peripheral nervous system (PNS)nervessensory neuronsmotor
... [Show More]
neurons
interneurons
Somatic nervous system
Autonomic nervous system
Sympathetic nervous system
Parasympathetic nervous system
Reflexes
Endocrine system
Hormones
Adrenal glands
[Show Less]