they are very long compared to other cells in the body

they do not have a nucleus

they regenerate very quickly

they help carry oxygen to different parts of your body

1 month

10 years

1 year

100 years

hormonal

telegraph

proteins

electrical impulses

100 miles per hour

150 meters per second

1 meter per second

1 foot per second

stem cells

glial cells

muscle cells

prison cells

spinal cord

a nerve

brains

all of the above

muscle cells

stem cells

liver cells

skin cells

bipolar neurons

pyramidal neurons

Purkinje neurons

multipolar neurons

nerve

muscle

the brain

wire