hormonal

electrical impulses

proteins

telegraph

the brain

muscle

nerve

wire

1 year

100 years

10 years

1 month

prison cells

stem cells

muscle cells

glial cells

liver cells

muscle cells

stem cells

skin cells

multipolar neurons

pyramidal neurons

bipolar neurons

Purkinje neurons

all of the above

a nerve

spinal cord

brains

1 foot per second

150 meters per second

100 miles per hour

1 meter per second

they are very long compared to other cells in the body

they regenerate very quickly

they help carry oxygen to different parts of your body

they do not have a nucleus