Nervous System

telegraph

electrical impulses

proteins

hormonal

glial cells

prison cells

stem cells

muscle cells

pyramidal neurons

bipolar neurons

multipolar neurons

Purkinje neurons

10 years

1 year

100 years

1 month

a nerve

brains

spinal cord

all of the above

1 meter per second

1 foot per second

100 miles per hour

150 meters per second

muscle cells

stem cells

liver cells

skin cells

they regenerate very quickly

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they do not have a nucleus

nerve

muscle

the brain

wire