1 month

10 years

1 year

100 years

liver cells

muscle cells

skin cells

stem cells

spinal cord

a nerve

brains

all of the above

150 meters per second

1 meter per second

100 miles per hour

1 foot per second

they are very long compared to other cells in the body

they do not have a nucleus

they help carry oxygen to different parts of your body

they regenerate very quickly

muscle

nerve

the brain

wire

prison cells

stem cells

muscle cells

glial cells

hormonal

electrical impulses

telegraph

proteins

multipolar neurons

Purkinje neurons

pyramidal neurons

bipolar neurons