Nervous System

telegraph

hormonal

electrical impulses

proteins

nerve

the brain

wire

muscle

1 foot per second

150 meters per second

100 miles per hour

1 meter per second

bipolar neurons

multipolar neurons

Purkinje neurons

pyramidal neurons

prison cells

stem cells

muscle cells

glial cells

liver cells

muscle cells

skin cells

stem cells

10 years

1 year

1 month

100 years

they do not have a nucleus

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they regenerate very quickly

all of the above

brains

spinal cord

a nerve