stem cells

skin cells

muscle cells

liver cells

spinal cord

a nerve

brains

all of the above

nerve

wire

the brain

muscle

100 years

10 years

1 year

1 month

hormonal

telegraph

proteins

electrical impulses

multipolar neurons

pyramidal neurons

bipolar neurons

Purkinje neurons

1 meter per second

1 foot per second

150 meters per second

100 miles per hour

they are very long compared to other cells in the body

they do not have a nucleus

they help carry oxygen to different parts of your body

they regenerate very quickly

stem cells

muscle cells

prison cells

glial cells