prison cells

muscle cells

glial cells

stem cells

100 miles per hour

1 foot per second

150 meters per second

1 meter per second

10 years

1 month

1 year

100 years

they are very long compared to other cells in the body

they do not have a nucleus

they regenerate very quickly

they help carry oxygen to different parts of your body

electrical impulses

proteins

telegraph

hormonal

spinal cord

a nerve

all of the above

brains

nerve

muscle

wire

the brain

pyramidal neurons

multipolar neurons

Purkinje neurons

bipolar neurons

skin cells

liver cells

stem cells

muscle cells