1 meter per second

100 miles per hour

1 foot per second

150 meters per second

stem cells

muscle cells

glial cells

prison cells

electrical impulses

telegraph

hormonal

proteins

a nerve

brains

all of the above

spinal cord

Purkinje neurons

bipolar neurons

multipolar neurons

pyramidal neurons

they help carry oxygen to different parts of your body

they regenerate very quickly

they are very long compared to other cells in the body

they do not have a nucleus

10 years

1 month

1 year

100 years

skin cells

liver cells

stem cells

muscle cells

wire

nerve

the brain

muscle