1 foot per second

1 meter per second

100 miles per hour

150 meters per second

the brain

muscle

nerve

wire

liver cells

muscle cells

skin cells

stem cells

Purkinje neurons

pyramidal neurons

multipolar neurons

bipolar neurons

prison cells

glial cells

muscle cells

stem cells

they do not have a nucleus

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

electrical impulses

telegraph

proteins

hormonal

all of the above

spinal cord

brains

a nerve

10 years

1 month

1 year

100 years