100 years

1 year

10 years

1 month

stem cells

prison cells

muscle cells

glial cells

brains

spinal cord

a nerve

all of the above

1 meter per second

150 meters per second

1 foot per second

100 miles per hour

the brain

wire

nerve

muscle

hormonal

telegraph

proteins

electrical impulses

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they do not have a nucleus

they regenerate very quickly

liver cells

stem cells

muscle cells

skin cells

multipolar neurons

pyramidal neurons

bipolar neurons

Purkinje neurons