stem cells

prison cells

muscle cells

glial cells

100 years

1 month

1 year

10 years

a nerve

all of the above

spinal cord

brains

multipolar neurons

bipolar neurons

Purkinje neurons

pyramidal neurons

hormonal

electrical impulses

telegraph

proteins

the brain

muscle

nerve

wire

they are very long compared to other cells in the body

they regenerate very quickly

they do not have a nucleus

they help carry oxygen to different parts of your body

150 meters per second

100 miles per hour

1 meter per second

1 foot per second

stem cells

skin cells

liver cells

muscle cells