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 regenerate very quickly

they do not have a nucleus

telegraph

hormonal

electrical impulses

proteins

muscle cells

liver cells

stem cells

skin cells

100 miles per hour

1 meter per second

150 meters per second

1 foot per second

brains

a nerve

all of the above

spinal cord

bipolar neurons

Purkinje neurons

pyramidal neurons

multipolar neurons

prison cells

muscle cells

glial cells

stem cells

the brain

wire

muscle

nerve