10 years

1 year

1 month

100 years

all of the above

a nerve

brains

spinal cord

stem cells

muscle cells

prison cells

glial cells

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

100 miles per hour

1 meter per second

1 foot per second

150 meters per second

skin cells

muscle cells

stem cells

liver cells

electrical impulses

hormonal

proteins

telegraph

multipolar neurons

bipolar neurons

pyramidal neurons

Purkinje neurons

the brain

nerve

wire

muscle