hormonal

proteins

telegraph

electrical impulses

the brain

nerve

wire

muscle

liver cells

skin cells

stem cells

muscle cells

glial cells

muscle cells

prison cells

stem cells

bipolar neurons

pyramidal neurons

multipolar neurons

Purkinje neurons

they help carry oxygen to different parts of your body

they regenerate very quickly

they do not have a nucleus

they are very long compared to other cells in the body

brains

all of the above

spinal cord

a nerve

100 miles per hour

1 foot per second

150 meters per second

1 meter per second

1 month

100 years

1 year

10 years