100 miles per hour

150 meters per second

1 meter per second

1 foot per second

electrical impulses

proteins

telegraph

hormonal

prison cells

stem cells

muscle cells

glial cells

they are very long compared to other cells in the body

they do not have a nucleus

they help carry oxygen to different parts of your body

they regenerate very quickly

muscle

nerve

the brain

wire

skin cells

liver cells

muscle cells

stem cells

multipolar neurons

bipolar neurons

pyramidal neurons

Purkinje neurons

spinal cord

brains

a nerve

all of the above

10 years

100 years

1 year

1 month