nerve

wire

muscle

the brain

bipolar neurons

multipolar neurons

Purkinje neurons

pyramidal neurons

electrical impulses

proteins

telegraph

hormonal

all of the above

brains

a nerve

spinal cord

muscle cells

glial cells

stem cells

prison cells

liver cells

muscle cells

stem cells

skin cells

1 month

10 years

100 years

1 year

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they regenerate very quickly

they do not have a nucleus

150 meters per second

1 foot per second

1 meter per second

100 miles per hour