nerve

wire

muscle

the brain

stem cells

liver cells

muscle cells

skin cells

a nerve

all of the above

brains

spinal cord

150 meters per second

100 miles per hour

1 foot per second

1 meter per second

proteins

hormonal

electrical impulses

telegraph

Purkinje neurons

multipolar neurons

bipolar neurons

pyramidal neurons

1 year

10 years

100 years

1 month

stem cells

prison cells

muscle cells

glial cells

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