stem cells

muscle cells

liver cells

skin cells

1 meter per second

100 miles per hour

150 meters per second

1 foot per second

hormonal

telegraph

proteins

electrical impulses

nerve

wire

muscle

the brain

muscle cells

glial cells

prison cells

stem cells

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

pyramidal neurons

Purkinje neurons

multipolar neurons

bipolar neurons

brains

a nerve

spinal cord

all of the above

10 years

100 years

1 month

1 year