electrical impulses

proteins

telegraph

hormonal

pyramidal neurons

bipolar neurons

Purkinje neurons

multipolar neurons

they regenerate very quickly

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they do not have a nucleus

wire

nerve

the brain

muscle

muscle cells

liver cells

stem cells

skin cells

1 foot per second

1 meter per second

150 meters per second

100 miles per hour

glial cells

stem cells

prison cells

muscle cells

10 years

100 years

1 month

1 year

spinal cord

brains

a nerve

all of the above