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

glial cells

stem cells

prison cells

muscle cells

hormonal

electrical impulses

telegraph

proteins

100 years

1 year

1 month

10 years

100 miles per hour

1 foot per second

150 meters per second

1 meter per second

Purkinje neurons

pyramidal neurons

bipolar neurons

multipolar neurons

nerve

wire

the brain

muscle

spinal cord

all of the above

a nerve

brains

stem cells

liver cells

skin cells

muscle cells