stem cells

glial cells

prison cells

muscle cells

1 foot per second

150 meters per second

1 meter per second

100 miles per hour

muscle cells

liver cells

skin cells

stem cells

proteins

electrical impulses

telegraph

hormonal

bipolar neurons

Purkinje neurons

multipolar neurons

pyramidal neurons

a nerve

all of the above

spinal cord

brains

they regenerate very quickly

they do not have a nucleus

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

the brain

wire

nerve

muscle

1 year

100 years

1 month

10 years