wire

the brain

muscle

nerve

100 years

10 years

1 month

1 year

150 meters per second

1 foot per second

100 miles per hour

1 meter per second

prison cells

stem cells

muscle cells

glial cells

multipolar neurons

bipolar neurons

pyramidal neurons

Purkinje neurons

all of the above

brains

a nerve

spinal cord

they do not have a nucleus

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

muscle cells

skin cells

liver cells

stem cells

electrical impulses

hormonal

telegraph

proteins