1 year

1 month

100 years

10 years

the brain

muscle

nerve

wire

prison cells

stem cells

glial cells

muscle cells

a nerve

brains

all of the above

spinal cord

1 foot per second

100 miles per hour

150 meters per second

1 meter per second

they regenerate very quickly

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

hormonal

electrical impulses

telegraph

proteins

liver cells

muscle cells

stem cells

skin cells

multipolar neurons

pyramidal neurons

Purkinje neurons

bipolar neurons