stem cells

muscle cells

glial cells

prison cells

1 foot per second

1 meter per second

100 miles per hour

150 meters per second

100 years

10 years

1 month

1 year

liver cells

muscle cells

skin cells

stem cells

they help carry oxygen to different parts of your body

they do not have a nucleus

they regenerate very quickly

they are very long compared to other cells in the body

a nerve

brains

spinal cord

all of the above

proteins

telegraph

hormonal

electrical impulses

muscle

nerve

the brain

wire

bipolar neurons

Purkinje neurons

pyramidal neurons

multipolar neurons