Chapter 7
Cell body(soma) Axon Hillock Axon Axon Terminal Dendrites Myelin Sheath
Cell body
Processes outside cell body
Central nervous system (CNS) Peripheral nervous system (PNS)
Sensory (afferent) division Motor (efferent) division
Two subdivisions Somatic nervous system = Autonomic nervous system =
Support, insulate, and protect neurons
Satellite cells Schwann cells
Axonal terminals are separated from the next neuron by a gap Synaptic cleft—gap between adjacent neurons Synapse—junction between nerves