muscle

nerve

wire

the brain

glial cells

prison cells

muscle cells

stem cells

multipolar neurons

pyramidal neurons

Purkinje neurons

bipolar neurons

10 years

1 year

1 month

100 years

electrical impulses

hormonal

telegraph

proteins

they help carry oxygen to different parts of your body

they do not have a nucleus

they regenerate very quickly

they are very long compared to other cells in the body

liver cells

stem cells

muscle cells

skin cells

1 meter per second

150 meters per second

1 foot per second

100 miles per hour

brains

a nerve

spinal cord

all of the above