Peripheral Nervous System Essentials

Front

Peripheral Nervous System

Back

Part of nervous system outside brain & spinal cord

Front

Main Components

Back

Cranial nerves & spinal nerves

Front

Cranial Nerves

Back

12 pairs, connect brain to head & neck

Front

Spinal Nerves

Back

31 pairs, connect spinal cord to body

Front

Somatic Nervous System

Back

Controls voluntary movements

Front

Autonomic Nervous System

Back

Regulates involuntary functions

Front

Sympathetic Division

Back

Prepares body for 'fight or flight'

Front

Parasympathetic Division

Back

Promotes 'rest and digest'

Front

Enteric Nervous System

Back

Controls gastrointestinal functions

Front

Sensory Neurons

Back

Transmit sensory information