prison cells

stem cells

muscle cells

glial cells

10 years

100 years

1 month

1 year

they regenerate very quickly

they do not have a nucleus

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

the brain

nerve

muscle

wire

100 miles per hour

1 meter per second

150 meters per second

1 foot per second

muscle cells

skin cells

stem cells

liver cells

pyramidal neurons

Purkinje neurons

multipolar neurons

bipolar neurons

hormonal

electrical impulses

proteins

telegraph

brains

spinal cord

a nerve

all of the above