wire

muscle

nerve

the brain

1 foot per second

100 miles per hour

150 meters per second

1 meter per second

electrical impulses

hormonal

telegraph

proteins

muscle cells

skin cells

stem cells

liver cells

prison cells

stem cells

glial cells

muscle cells

pyramidal neurons

bipolar neurons

Purkinje neurons

multipolar neurons

all of the above

brains

spinal cord

a nerve

they do not have a nucleus

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

1 month

100 years

10 years

1 year