hormonal

electrical impulses

proteins

telegraph

stem cells

liver cells

muscle cells

skin cells

Purkinje neurons

pyramidal neurons

bipolar neurons

multipolar neurons

the brain

wire

nerve

muscle

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

spinal cord

brains

a nerve

all of the above

100 years

1 year

10 years

1 month

1 foot per second

100 miles per hour

1 meter per second

150 meters per second

prison cells

stem cells

muscle cells

glial cells