spinal cord

brains

a nerve

all of the above

1 year

100 years

10 years

1 month

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they do not have a nucleus

they regenerate very quickly

stem cells

prison cells

muscle cells

glial cells

Purkinje neurons

pyramidal neurons

multipolar neurons

bipolar neurons

electrical impulses

telegraph

proteins

hormonal

100 miles per hour

1 foot per second

150 meters per second

1 meter per second

the brain

muscle

nerve

wire

stem cells

muscle cells

liver cells

skin cells