Made up of cranial and spinal nerves

-carry motor and sensory signals

-carry info into and out of the BRAIN STEM

Connects the CNS to the ORGANS and limbs

Divisions:

-responsible for the actions that a person can control

controls voluntary movements

-controls involuntary responses

Ex of AUTONOMIC

- prepares the body for action and stress; fight or flight

Ex. Inc heart rate and breathing, sweating

-helps the body conserve E;

restores the body to normal or relaxed mode

Ex. Rest ; digest

The — is made up of peripheral nerves that connect the CNS to the rest of the body.

These neurons can regenerate if damaged.

PNS • — pairs of spinal nerves • — pairs of cranial nerves

– Cranial & spinal nerves connecting CNS to HSIG heart, stomach, intestines, glands

– Controls unconscious activities

– Cranial & spinal nerves connecting CNS to skin & skeletal muscles

– Oversees conscious activities

– Decreases heart rate, bronchiole dilation, blood glucose, blood to skeletal muscle

– Increases digestion, pupil size, urinary output

– “rest and digest”

– Decreases digestion, pupil size, urinary output

– Increases heart rate, bronchiole dilation, blood glucose, blood to skeletal muscle

– “fight or flight"

Rod of tissue that runs down and back to the brain

SPINAL CORD Protected by the spinal column and with

2 kinds of Autonomic Nervous System