hormonal

telegraph

electrical impulses

proteins

100 years

10 years

1 year

1 month

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they do not have a nucleus

they regenerate very quickly

muscle cells

glial cells

prison cells

stem cells

spinal cord

all of the above

a nerve

brains

stem cells

muscle cells

skin cells

liver cells

1 meter per second

100 miles per hour

1 foot per second

150 meters per second

bipolar neurons

Purkinje neurons

pyramidal neurons

multipolar neurons

nerve

the brain

muscle

wire