nerve

wire

the brain

muscle

100 miles per hour

150 meters per second

1 meter per second

1 foot per second

hormonal

proteins

telegraph

electrical impulses

brains

spinal cord

all of the above

a nerve

they regenerate very quickly

they help carry oxygen to different parts of your body

they do not have a nucleus

they are very long compared to other cells in the body

1 year

1 month

100 years

10 years

muscle cells

skin cells

liver cells

stem cells

pyramidal neurons

multipolar neurons

Purkinje neurons

bipolar neurons

muscle cells

glial cells

prison cells

stem cells