Nervous System

prison cells

glial cells

stem cells

muscle cells

they regenerate very quickly

they do not have a nucleus

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

10 years

1 year

1 month

100 years

hormonal

proteins

electrical impulses

telegraph

the brain

wire

muscle

nerve

a nerve

all of the above

brains

spinal cord

pyramidal neurons

bipolar neurons

multipolar neurons

Purkinje neurons

1 foot per second

100 miles per hour

150 meters per second

1 meter per second

muscle cells

stem cells

skin cells

liver cells