all of the above

a nerve

spinal cord

brains

100 miles per hour

1 foot per second

150 meters per second

1 meter per second

stem cells

liver cells

muscle cells

skin cells

stem cells

muscle cells

glial cells

prison cells

hormonal

electrical impulses

proteins

telegraph

10 years

100 years

1 month

1 year

Purkinje neurons

bipolar neurons

pyramidal neurons

multipolar neurons

muscle

nerve

the brain

wire

they regenerate very quickly

they do not have a nucleus

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body